SJ 20705-1998 Test method for tactical performance of electrical system of armored reconnaissance vehicle

SJ 20705-1998 Tactical performance test method for electrical system of armored reconnaissance vehicle SJ20705-1998 Standard download decompression password: www.bzxz.net

Military Standard of the Electronic Industry of the People's Republic of China FL9910
SJ 20705-1998
Tactical performance test methods for electric system of scout armored vehicle Issued on March 18, 1998
Implementation on May 1, 1998
Model drawing approved by the Ministry of Electronics Industry of the People's Republic of China
Referenced documents
General requirements
5 Detailed requirements
Method 101
Test method for target detection and identification distance
Method 102 Test method for azimuth accuracy
Test method for positioning accuracy of receiver of global positioning system Method 103
Method 104
Method 105
Test method for system positioning accuracy
Test method for reconnaissance radius of micro air vehicle
Method 106
Test method for system software and intelligence processing capabilityMethod 107
Test method for microwave television transmission system
Method 108
Test method for radio transmission
Thank youA Main technical parameters to be checked before the test of the system under test (reference)Appendix B Format of common test record table (reference)rKAoNrKAca
Military standard of the electronics industry of the People's Republic of ChinaTactical performance test method of electrical system of armored reconnaissance vehicleSJ20705—1998
Tactical performance test methods or electridsystem of scout armored vehicle1Scope
1.1 Subject content
This specification specifies the tactical performance test method of electrical system of armored reconnaissance vehicle. 1.2 Scope of application
This specification applies to the test of tactical performance of electrical system of armored reconnaissance vehicle. 2 References
GB3784—83 Radar Terminology
GJB 74A-
General Specification for Military Ground Radar
SJ20704—98 General Specification for Electrical System of Armored Reconnaissance Vehicle 3 Definitions
Terms not defined in this standard shall be in accordance with the provisions of GB3784 and GJB74A. 3.1 Tested system
Electrical system of armored reconnaissance vehicle submitted for tactical performance test. 3.2 Tester
Unit responsible for product testing.
3.3 Visibility
The maximum distance at which a person with normal vision can see a target under certain meteorological conditions. 4.1 Test system
4.1.1 For the system of finalization test, the manufacturer shall submit the following materials to the tester in advance a. Product specification;
The Ministry of Electronics Industry of the People's Republic of China issued on March 18, 1998 and implemented on May 1, 1998
b. Random documents.
SJ 20705--1998
4.1.2 The test system must meet the technical performance specified in the product specification, pass the routine inspection, and pass the environmental adaptability test.
4.2 Inspection and calibration of the test system
4.2.1 Before the test, the main technical parameters of the test system that directly affect the tactical indicators [see Appendix A (reference)] shall be inspected.
4.2.2 The calibration of the test system shall be carried out on a fixed site that has been measured by geodetic survey. The calibration items are: a. Horizontal adjustment:
b. Azimuth calibration;
c, distance zero calibration:
d. Data transmission accuracy check.
Batch production sampling test conducted in the test field shall be calibrated and calibrated according to the product specifications. 4.3 Guarantee of the technical status of the system during the test 4.3.1 After the test system is handed over, the test host of the test party is responsible for organizing and implementing the test work of the system. 4.3.2 The formal test begins from the inspection of the main technical parameters. During the entire test process, the system's storage, use, operation, maintenance and various records are organized by the test host. Without the consent of the test host, no one may arbitrarily change or adjust the working status of the test system. 4.3.3 Before and after each test, the relevant technical parameters and working status of the test system should be checked and recorded. The record format is shown in Table Bl in Appendix B (reference). 4.3.4 During the test, the maintenance of the test system should be implemented according to the relevant rules of the product instructions provided by the contractor. 4.3.5 During the test, the faults of the tested system and their inspection and elimination should be recorded in detail. The record format is shown in Table B2 in Appendix B (reference).
4.3.6 After the components and parts of the tested system are damaged or failed, they can be replaced only with the consent of the test host. After replacement and adjustment, the relevant technical parameters should be retested. 4.4 System test site
The system test site should meet the following requirements: a. The system test site should avoid external electromagnetic interference to the tested system caused by interference sources such as high-power radio stations, substations, and high-voltage lines
b. The site for the test "discovery and identification mark distance" should ensure that there is no line of sight, and the day mark and the background have significant differences in illumination and color;
C. The TV relay station should ensure the line of sight between the relay point and the starting point and the end point, while the starting point and the end point are not visible:
d. When conducting positioning and orientation tests, the coordinate calibration of the site and reference objects shall comply with the provisions of the product specifications: 2-
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SJ 20705—1998
e. When conducting data communication tests, the medium undulating ground should be selected. f. The road surface for sports cars should be selected according to the requirements of the corresponding standards. 4.5 Meteorological conditions
The requirements for meteorological conditions are as follows:
a. The test should be conducted without precipitation:
b. When testing optoelectronic products such as cameras, televisions, infrared, and lasers, their atmospheric visibility should comply with the provisions of the product specifications:
C. During the test, meteorological data should be recorded in accordance with the provisions of the product specifications. 4.6 Test instruments and equipment
4.6.1 The instruments and meters required to detect the main technical parameters of the test system should comply with the provisions of the product specifications and are generally provided by the tester. The instruments and meters must be regularly calibrated by the metrology department and have a valid certificate of use issued by the metrology department.
4.6.2 The special equipment and data processing equipment used in the test should work accurately, timely and reliably. 4.6.3 The true value accuracy provided by the special equipment used in the test should not be less than one-third of the allowable error of the measured parameter. Special equipment should have a certificate of conformity and be within the effective use period. 4.7 Requirements for operators
The operator of the test system shall be dispatched by the test party, and shall undergo professional operation training and pass the assessment before taking up the post.
4.8 Stop the test
When any of the following situations occurs, the test plan shall be suspended, and the test shall be stopped after the test party reports to the competent department for approval:
a. Any tactical indicator in the test fails to meet the requirements, and the cause cannot be found under the conditions of the test site, and at the same time affects the continuation of other projects:
b. The test system has a fault that is difficult to repair under the conditions of the test site. 4.9 Resumption test
When the reasons for stopping the test have been found out and the conditions for a new test are met, the ordering party and the contractor shall apply to the competent department and restart the test after approval. 4.10 Test records and test reports
4.10.1 Original datawww.bzxz.net
During the test, relevant original data must be collected and recorded in detail, mainly including: a. Test related data, test task book, test outline, test implementation plan, test coordination plan, etc.; b. Inspection records of the main technical parameters of the test system and calibration records of various parameters; c. Inspection records before and after each test of the test system: -3 -
SJ 20705-1998
d. Audio and video data and recorded data of the operation and command of the test system in each test; e. Records of the operation, maintenance, and failure of the test system. 4.10.2 Test Report
After the test is completed, the test contractor shall promptly provide the competent department with a test report of the tested system. The report shall include the following contents:
a. Basis of the test, task number, test contractor, start and end time, on-site working days, test object, task nature, date, relevant data used, contractor, ordering party and test unit, etc.; b. Technical status of the tested system, problems found and their treatment, test instruments and equipment; c. Summary of test results and main data;
d.Conclusion:
Main problems and improvement of the tested system, 5 Detailed requirements
The main tactical performance test methods of the electrical system of the armored reconnaissance vehicle shall be carried out according to methods 101 to 108 specified in this chapter. Equivalent methods may also be used, but when there is a dispute, the method specified in this chapter shall prevail. 4
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1 Scope of application
SJ20705—1998
Method 101
Detection and identification and distance test method
This method is applicable to the vehicle-mounted camera system, thermal imager, portable camcorder to detect and identify the target distance of armored vehicles.
2 Purpose
To test the ability of vehicle-mounted camera systems, thermal imagers, portable camcorders and other equipment to detect and identify armored vehicles at the distance of the day.
3 Requirements
3.1 Meteorological conditions: Atmospheric visibility should be greater than 30% of the specified index of the test product, or as specified by the product specification. 3.2 The distance between the test target and the test equipment should be marked on a map with a scale greater than 1/25000, and the line of sight between the two should be guaranteed.
3.3 The target to be tested should not be obscured, and the illumination, color and temperature should be significantly different from the surrounding background. 4 Test methods
4.t Test methods for vehicle-mounted camera systems and portable camcorders 4.1.1 Use a high-power telescope to find the pre-set test target, and ensure that the normal visual observer with a visual acuity of 5.0 to 5.2 can see the test target.
4.1.2 Aim the camera system or portable camcorder at the test target and make corresponding adjustments to make the image optimal. 4.1.3 The criterion for the monitor to detect the target is that the image of the self-marker exists in the background display of the fluorescent screen. The display height of the captured target image is h (mm), and h should satisfy the formula (1): h ≥ 44
Where: A—the vertical effective size of the monitor display screen, mm: D-a vertical resolution of the monitor, number of lines. + (1)
4.1.4 The criterion for the monitor to identify the target is that the display of the target image outline can indicate the target attributes or motion characteristics. The display height of the captured national standard image is h (mm), and h should satisfy the formula (2): h28
4.2 The test method for the thermal imager to detect and identify the national standard distance shall be carried out in accordance with the product specifications.
Test report
Record the atmospheric visibility distance during the test.
SJ20705-1998
Report the distance value for detecting and identifying armored vehicles. 6
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1 Scope of application
sJ 207051998
Method 102
Azimuth accuracy test method
This method is applicable to the azimuth output accuracy test of the electrical system of the armored reconnaissance vehicle. 2 Purpose
To test the azimuth output accuracy of the electrical system of the armored reconnaissance vehicle. 3 Requirements
The test site must have two calibrated points calibrated by the national surveying and mapping department, and the distance between them must be greater than 1km3.1
The accuracy is better than 0.1m.
3.2 A pole with a reflective target (material or cardboard) with an area not less than (0.1×0.1)m2. 4 Test method
4.tThe reconnaissance vehicle to be tested stops at the known calibrated point A, and its error should be less than 0.5m. 4.2The vehicle engine is turned off and the personnel remain motionless. Load the coordinate parameters of point A into the electrical system and start to find the north. Then the system works.
4.3 Set up a pole at the known coordinate point B, and rotate the reconnaissance tower so that the laser rangefinder can measure the distance from the front of the reflective target. Read the reading x on the center computer screen. 4.4 Repeat 4.3 for a total of 10 times.
5 Data processing
5.1 Calculate the ear tag azimuth error according to formula (1): -y
Where: △α—target azimuth error: arctg
X, —ra
The first coordinate data read on the screen (X direction): x
rA point mark data (X direction);
%——B point coordinate data (X direction):
Ji-—The i-th coordinate data read on the screen (Y direction);-A point coordinate data (Y direction):
-B point coordinate data (Y direction).
SJ20705—1998
Calculate the accuracy of the azimuth (1α) according to formula (2)5.2
Where:—Azimuth accuracy.
Test report
Report the test results and record the site coordinates and date. 8
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1 Scope of application
SJ 20705—1998
Method 103
Test method for positioning accuracy of global positioning system (GPS) receiver This method is applicable to the global satellite positioning system C/A code positioning receiver of the electrical system of armored reconnaissance vehicles. 2 Purpose
Test the positioning accuracy of the global satellite positioning system receiver. 3 Requirements
3.1 The site should have a benchmark point calibrated by the national surveying and mapping department, and the accuracy should be more than one order of magnitude better than the accuracy requirement of the test product.
3.2 The top of the receiver antenna should not be blocked. 3.3 The vehicle body is placed on its quasi-coordinate point, and the error is less than 0.5m. 4 Test method
4. After the test system is turned on for 30 minutes, it enters the test state. 4.2 Read the data manually from the control display, or store 100 times of data in the computer connected to it. 5
Data processing
5.1 Calculate the positioning accuracy
5.1.1 Calculate the first-order difference between each measurement value and the reference coordinate point according to formula (1) and (2): Ar=xx
Ayi = yi-y
Where: △x—first-order difference of the first measurement x——i-th measurement value;
to——reference point measurement value;
A片——first-order difference of the first measurement;
—th measurement value:
y-—reference point measurement value.
5.1.2 Calculate the standard error according to formula (3) and (4): +（1）
Where:——standard error:
-number of measurements;
——standard error.
SJ 20705—1998
5.1.2.1 Calculate the positioning accuracy q+o
According to formula (5), where: α is the standard error of the slope range.
5.1.3 Calculate the intermediate error according to formula (6): E=0.6745g
According to formula (6), where: E-intermediate error.
6 Test report
The report includes the coordinates of the test site and the test results. 10
iiiKAoNrkAca4 The criterion for the monitor to identify the target is that the display of the target image outline can indicate the target attributes or motion characteristics. The height of the captured national standard image display is h (mm), and h should satisfy the formula (2): h28
4.2 The test method for the thermal imager to detect and identify the national standard distance shall be carried out in accordance with the product specifications.
Test report
Record the atmospheric visibility distance during the test.
SJ20705-1998
Report the distance value for detecting and identifying armored vehicles. 6
ikAoNrKAca-
1 Scope of application
sJ 207051998
Method 102
Square angle accuracy test method
This method is applicable to the azimuth output accuracy test of the electrical system of the armored reconnaissance vehicle 2 Purpose
To test the azimuth output accuracy of the electrical system of the armored reconnaissance vehicle. 3 Requirements
The test site must have two calibrated points by the national surveying and mapping department, and the distance between them must be greater than 1km3.1
The accuracy is better than 0.1m.
3.2 A pole with a reflective target (material or cardboard) with an area of ​​not less than (0.1×0.1)m2. 4 Test method
4.t The reconnaissance vehicle to be tested stops at the known calibrated point A, and its error should be less than 0.5m. 4.2 The vehicle engine is turned off and the personnel remain motionless. Load the coordinate parameters of point A into the electrical system and start to find the north. Then the system works.
4.3 Set up a pole at the known coordinate point B, and rotate the reconnaissance tower so that the laser rangefinder can measure the distance from the front of the reflective target. Read the reading x, piece on the central computer screen. 4.4 Repeat 4.3 for a total of 10 times.
5 Data processing
5.1 Calculate the ear tag azimuth error according to formula (1): -y
Where: △α—target azimuth error: arctg
X, —ra
The first coordinate data read on the screen (X direction): x
rA point mark data (X direction);
%——B point coordinate data (X direction):
Ji-—The i-th coordinate data read on the screen (Y direction);-A point coordinate data (Y direction):
-B point coordinate data (Y direction).
SJ20705—1998
Calculate the accuracy of the azimuth (1α) according to formula (2)5.2
Where:—Azimuth accuracy.
Test report
Report the test results and record the site coordinates and date. 8
iiiKAoNrkAca=
1 Scope of application
SJ 20705—1998
Method 103
Test method for positioning accuracy of global positioning system (GPS) receiver This method is applicable to the global satellite positioning system C/A code positioning receiver of the electrical system of armored reconnaissance vehicles. 2 Purpose
Test the positioning accuracy of the global satellite positioning system receiver. 3 Requirements
3.1 The site should have a benchmark point calibrated by the national surveying and mapping department, and the accuracy should be more than one order of magnitude better than the accuracy requirement of the test product.
3.2 The top of the receiver antenna should not be blocked. 3.3 The vehicle body is placed on its quasi-coordinate point, and the error is less than 0.5m. 4 Test method
4. After the test system is turned on for 30 minutes, it enters the test state. 4.2 Read the data manually from the control display, or store 100 times of data in the computer connected to it. 5
Data processing
5.1 Calculate the positioning accuracy
5.1.1 Calculate the first-order difference between each measurement value and the reference coordinate point according to formula (1) and (2): Ar=xx
Ayi = yi-y
Where: △x—first-order difference of the first measurement x——i-th measurement value;
to——reference point measurement value;
A片——first-order difference of the first measurement;
—th measurement value:
y-—reference point measurement value.
5.1.2 Calculate the standard error according to formula (3) and (4): +（1）
Where:——standard error:
-number of measurements;
——standard error.
SJ 20705—1998
5.1.2.1 Calculate the positioning accuracy q+o
According to formula (5), where: α is the standard error of the slope range.
5.1.3 Calculate the intermediate error according to formula (6): E=0.6745g
According to formula (6), where: E-intermediate error.
6 Test report
The report includes the coordinates of the test site and the test results. 10
iiiKAoNrkAca4 The criterion for the monitor to identify the target is that the display of the target image outline can indicate the target attributes or motion characteristics. The height of the captured national standard image display is h (mm), and h should satisfy the formula (2): h28
4.2 The test method for the thermal imager to detect and identify the national standard distance shall be carried out in accordance with the product specifications.
Test report
Record the atmospheric visibility distance during the test.
SJ20705-1998
Report the distance value for detecting and identifying armored vehicles. 6
ikAoNrKAca-
1 Scope of application
sJ 207051998
Method 102
Square angle accuracy test method
This method is applicable to the azimuth output accuracy test of the electrical system of the armored reconnaissance vehicle 2 Purpose
To test the azimuth output accuracy of the electrical system of the armored reconnaissance vehicle. 3 Requirements
The test site must have two calibrated points by the national surveying and mapping department, and the distance between them must be greater than 1km3.1
The accuracy is better than 0.1m.
3.2 A pole with a reflective target (material or cardboard) with an area of ​​not less than (0.1×0.1)m2. 4 Test method
4.t The reconnaissance vehicle to be tested stops at the known calibrated point A, and its error should be less than 0.5m. 4.2 The vehicle engine is turned off and the personnel remain motionless. Load the coordinate parameters of point A into the electrical system and start to find the north. Then the system works.
4.3 Set up a pole at the known coordinate point B, and rotate the reconnaissance tower so that the laser rangefinder can measure the distance from the front of the reflective target. Read the reading x, piece on the central computer screen. 4.4 Repeat 4.3 for a total of 10 times.
5 Data processing
5.1 Calculate the ear tag azimuth error according to formula (1): -y
Where: △α—target azimuth error: arctg
X, —ra
The first coordinate data read on the screen (X direction): x
rA point mark data (X direction);
%——B point coordinate data (X direction):
Ji-—The i-th coordinate data read on the screen (Y direction);-A point coordinate data (Y direction):
-B point coordinate data (Y direction).
SJ20705—1998
Calculate the accuracy of the azimuth (1α) according to formula (2)5.2
Where:—Azimuth accuracy.
Test report
Report the test results and record the site coordinates and date. 8
iiiKAoNrkAca=
1 Scope of application
SJ 20705—1998
Method 103
Test method for positioning accuracy of global positioning system (GPS) receiver This method is applicable to the global satellite positioning system C/A code positioning receiver of the electrical system of armored reconnaissance vehicles. 2 Purpose
Test the positioning accuracy of the global satellite positioning system receiver. 3 Requirements
3.1 The site should have a benchmark point calibrated by the national surveying and mapping department, and the accuracy should be more than one order of magnitude better than the accuracy requirement of the test product.
3.2 The top of the receiver antenna should not be blocked. 3.3 The vehicle body is placed on its quasi-coordinate point, and the error is less than 0.5m. 4 Test method
4. After the test system is turned on for 30 minutes, it enters the test state. 4.2 Read the data manually from the control display, or store 100 times of data in the computer connected to it. 5
Data processing
5.1 Calculate the positioning accuracy
5.1.1 Calculate the first-order difference between each measurement value and the reference coordinate point according to formula (1) and (2): Ar=xx
Ayi = yi-y
Where: △x—first-order difference of the first measurement x——i-th measurement value;
to——reference point measurement value;
A片——first-order difference of the first measurement;
—th measurement value:
y-—reference point measurement value.
5.1.2 Calculate the standard error according to formula (3) and (4): +（1）
Where:——standard error:
-number of measurements;
——standard error.
SJ 20705—1998
5.1.2.1 Calculate the positioning accuracy q+o
According to formula (5), where: α is the standard error of the slope range.
5.1.3 Calculate the intermediate error according to formula (6): E=0.6745g
According to formula (6), where: E-intermediate error.
6 Test report
The report includes the coordinates of the test site and the test results. 10
iiiKAoNrkAca1 Calculate the first-order difference between each measurement value and the reference coordinate point according to formula (1) and (2): Ar = xx
Ayi = yi-y
Where: △x—first-order difference of the first measurement x——i-th measurement value;
to——reference point measurement value;
A片——first-order difference of the first measurement;
—th measurement value:
y-—reference point measurement value.
5.1.2 Calculate the standard error according to formula (3) and (4): + (1)
Where:——standard error:
-number of measurements;
——standard error.
SJ 20705—1998
5.1.2.1 Calculate the positioning accuracy q+o
According to formula (5) Where: α is the standard error of the slope distance.
5.1.3 Calculate the intermediate error according to formula (6): E=0.6745g
Where: E-intermediate error.
6 Test report
The report includes the coordinates of the test site and the test results. 10
iiiKAoNrkAca1 Calculate the first-order difference between each measurement value and the reference coordinate point according to formula (1) and (2): Ar = xx
Ayi = yi-y
Where: △x—first-order difference of the first measurement x——i-th measurement value;
to——reference point measurement value;
A片——first-order difference of the first measurement;
—th measurement value:
y-—reference point measurement value.
5.1.2 Calculate the standard error according to formula (3) and (4): + (1)
Where:——standard error:
-number of measurements;
——standard error.
SJ 20705—1998
5.1.2.1 Calculate the positioning accuracy q+o
According to formula (5) Where: α is the standard error of the slope distance.
5.1.3 Calculate the intermediate error according to formula (6): E=0.6745g
Where: E-intermediate error.
6 Test report
The report includes the coordinates of the test site and the test results. 10
iiiKAoNrkAca
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