CN-122017897-A - System, method, device and medium for testing orientation performance of GNSS orientation equipment

CN122017897ACN 122017897 ACN122017897 ACN 122017897ACN-122017897-A

Abstract

The application relates to the technical field of satellite testing and discloses a system, a method, a device and a medium for testing the orientation performance of GNSS orientation equipment, wherein the system, the method, the device and the medium comprise that a secondary antenna is arranged on a guide rail taking a main antenna as a circle center, the output end of the main antenna is connected with a first passive power divider, and the secondary antenna is connected with a second passive power divider; the output end of the first passive power divider is connected with the first active power divider and the first power attenuator, the output end of the second passive power divider is connected with the third active power divider and the second power attenuator, the output end of the first power attenuator is connected with the second active power divider, the output end of the second power attenuator is connected with the fourth active power divider, the first active power divider is connected with the main antenna input end of the directional testing equipment, the second active power divider is connected with the main antenna input end of each directional equipment and the auxiliary antenna input end of the directional testing equipment, the fourth active power divider is connected with the auxiliary antenna input end of each directional equipment, and the controller is communicated with the directional testing equipment and each directional equipment to accurately test the directional performance of a plurality of directional equipment in a real environment.

Inventors

FU ZHENGYANG
Ge Haonan
CHEN HANWEI
JIANG YUNXIANG
LI SHUANGGUI
Ma Xinzhuo

Assignees

长沙金维集成电路股份有限公司

Dates

Publication Date: 20260512
Application Date: 20260408

Claims (13)

1. The system for testing the orientation performance of the GNSS orientation equipment is characterized by comprising a main antenna, a plurality of movable auxiliary antennas, a guide rail, a first passive power divider, a second passive power divider, a first active power divider, a second active power divider, a third active power divider, a fourth active power divider, a first power attenuator, a second power attenuator, an orientation test equipment and a controller; The movable auxiliary antennas and the guide rail are arranged around the main antenna as a circle center, the movable auxiliary antennas are arranged on the guide rail, and the movable auxiliary antennas can move along the guide rail; the output end of the main antenna is connected with the input end of the first passive power divider, and a plurality of movable auxiliary antennas are connected with the input end of the second passive power divider; The first output end and the second output end of the first passive power divider are respectively connected with the input end of the first active power divider and the input end of the first power attenuator, and the first output end and the second output end of the second passive power divider are respectively connected with the input end of the third active power divider and the input end of the second power attenuator; The output end of the first power attenuator is connected with the input end of the second active power divider, and the output end of the second power attenuator is connected with the input end of the fourth active power divider; the output end of the first active power divider is connected with the first input end of the GNSS signal main antenna of the orientation test equipment, and the output ends of the second active power divider are respectively connected with the GNSS signal main antenna input ends of a plurality of GNSS orientation equipment; The output end of the third active power divider is connected with the GNSS signal slave antenna second input end of the orientation test equipment, and the output end of the fourth active power divider is respectively connected with the GNSS signal slave antenna input ends of a plurality of GNSS orientation equipment; The communication end of the controller is respectively connected with the orientation test equipment and the communication ends of the GNSS orientation equipment and is used for testing the orientation performance of the GNSS orientation equipment.
2. The system of claim 1, wherein the plurality of movable slave antennas comprises a first set of movable slave antennas disposed around the master antenna at a first predetermined radius, and a second set of movable slave antennas disposed around the master antenna at a second predetermined radius, wherein the first predetermined radius is greater than the second predetermined radius.
3. The system of claim 2, wherein the rail comprises a first rail and a second rail, the first rail and the second rail being disposed around the primary antenna at the first predetermined radius and the second predetermined radius, respectively, the first set of secondary antennas moving along the first rail and the second set of secondary antennas moving along the second rail.
4. A method for testing the orientation performance of a GNSS orientation apparatus, wherein the system for testing the orientation performance of the GNSS orientation apparatus according to any of claims 1 to 3 is applied, the method comprising: controlling any one of the plurality of movable slave antennas to be connected with the input end of the second passive power divider and move along the guide rail; Powering a plurality of the GNSS orientation devices and controlling the plurality of the GNSS orientation devices to perform positioning and orientation; Under the condition that positioning and orientation of a plurality of GNSS orientation devices are successful in a preset waiting time period, acquiring first GGA positioning data and first ORI positioning data of the plurality of GNSS orientation devices in a preset test time period, and first standard GGA positioning data and first standard ORI positioning data of the orientation test device in the preset test time period; Obtaining a first positioning error, a first orientation azimuth error and a first pitch angle error according to the first GGA positioning data, the first ORI orientation data, the first standard GGA positioning data and the first standard ORI orientation data; and under the condition that the first positioning error, the first orientation azimuth angle error and the first pitch angle error meet a first preset performance test condition, determining that the orientation performance of the GNSS orientation equipment is qualified.
5. The system for testing the orientation performance of the GNSS orientation equipment is characterized by comprising a main antenna, a plurality of static slave antennas, a first passive power divider, a second passive power divider, a first active power divider, a second active power divider, a third active power divider, a fourth active power divider, a first power attenuator, a second power attenuator, orientation test equipment and a controller; the plurality of static slave antennas are arranged in a surrounding way by taking the main antenna as a circle center; the output end of the main antenna is connected with the input end of the first passive power divider, and a plurality of the static slave antennas are connected with the input end of the second passive power divider; The first output end and the second output end of the first passive power divider are respectively connected with the input end of the first active power divider and the input end of the first power attenuator, and the first output end and the second output end of the second passive power divider are respectively connected with the input end of the third active power divider and the input end of the second power attenuator; The output end of the first power attenuator is connected with the input end of the second active power divider, and the output end of the second power attenuator is connected with the input end of the fourth active power divider; the output end of the first active power divider is connected with the first input end of the GNSS signal main antenna of the orientation test equipment, and the output ends of the second active power divider are respectively connected with the GNSS signal main antenna input ends of a plurality of GNSS orientation equipment; The output end of the third active power divider is connected with the GNSS signal slave antenna second input end of the orientation test equipment, and the output end of the fourth active power divider is respectively connected with the GNSS signal slave antenna input ends of a plurality of GNSS orientation equipment; The communication end of the controller is respectively connected with the orientation test equipment and the communication ends of the GNSS orientation equipment and is used for testing the orientation performance of the GNSS orientation equipment.
6. The system of claim 5, wherein the plurality of static slave antennas comprises a first set of static slave antennas disposed around the master antenna at a third preset radius, a second set of static slave antennas disposed around the master antenna at a fourth preset radius, and a third set of static slave antennas disposed around the master antenna at a fifth preset radius, wherein the third preset radius, the fourth preset radius, and the fifth preset radius decrease in sequence.
7. The system of claim 5, wherein the communication terminals of the controller are further coupled to the communication terminals of the first and second power attenuators, respectively, for adjusting the signal power attenuation values of the first and second power attenuators.
8. A method for testing the orientation performance of a GNSS orientation apparatus, wherein the system for testing the orientation performance of the GNSS orientation apparatus according to any of claims 5to 7 is applied, the method comprising: any one of the plurality of static slave antennas is controlled to be connected with the input end of the second passive power divider; Powering a plurality of the GNSS orientation devices and controlling the plurality of the GNSS orientation devices to perform positioning and orientation; obtaining a second GGA positioning data set and a second ORI positioning data set of the plurality of GNSS positioning devices, a second standard GGA positioning data set of the positioning test device and a second standard ORI positioning data set if the positioning and the positioning of the plurality of GNSS positioning devices are successful, wherein the second GGA positioning data set comprises a plurality of second ORI positioning data, the second standard GGA positioning data set comprises a plurality of second standard GGA positioning data, and the second standard ORI positioning data set comprises a plurality of second standard ORI positioning data; Obtaining a second positioning error, a second orientation azimuth error and a second pitch angle error according to the second GGA positioning data set, the second ORI orientation data set, the second standard GGA positioning data set and the second standard ORI orientation data set; And under the condition that the second positioning error, the second orientation azimuth angle error and the second pitch angle error meet a second preset performance test condition, determining that the orientation performance of the GNSS orientation equipment is qualified.
9. The method of claim 8, wherein the method further comprises: acquiring the power-on time of the GNSS directional device when the plurality of GNSS directional devices are powered on; under the condition that a plurality of GNSS orientation devices continuously output a preset number of second ORI orientation data meeting the second preset performance test condition, determining a first target moment according to the moment that the plurality of GNSS orientation devices continuously output the preset number of second ORI orientation data meeting the second preset performance test condition; Determining first orientation time lengths of a plurality of GNSS orientation devices according to the difference value between the first target time and the power-on time of the GNSS orientation device; And under the condition that the first orientation duration is smaller than a preset first orientation duration threshold, determining that the orientation performance of a plurality of GNSS orientation devices is qualified.
10. The method of claim 8, wherein the method further comprises: Updating power attenuation values of the first and second power attenuators based on a preset power attenuation value in the case that the second positioning error, the second orientation azimuth error, and the second pitch angle error satisfy the second preset performance test condition; And repeating the step of controlling the plurality of GNSS directional devices to perform positioning and orientation according to the updated power attenuation values of the first power attenuator and the second power attenuator until the orientation performance of the plurality of GNSS directional devices is determined to be qualified under the condition that the second positioning error, the second orientation azimuth angle error and the second pitch angle error do not meet the second preset performance test condition.
11. The method of claim 8, wherein the method further comprises: under the condition that the positioning and orientation of a plurality of GNSS orientation devices are successful, controlling the second active power divider and the fourth active power divider to be powered off and then powered on; acquiring power-on time of the power divider when the second active power divider and the fourth active power divider are powered on again; Re-receiving a second ORI orientation dataset of a plurality of said GNSS orientation apparatuses; under the condition that a continuous preset number of second ORI orientation data meeting the second preset performance test condition exist in the re-received second ORI orientation data set, determining a second target moment according to the moment when a plurality of GNSS orientation devices continuously output the preset number of second ORI orientation data meeting the second preset performance test condition; Determining the orientation time length after signal lock losing weight capturing of a plurality of GNSS orientation devices according to the difference value between the second target time and the power-on time of the power divider; and under the condition that the orientation time length after the signal losing lock re-capturing is smaller than a preset orientation time length threshold after the signal losing lock re-capturing, determining that the orientation performance of the GNSS orientation devices is qualified.
12. An orientation performance testing apparatus of a GNSS orientation device, comprising: A memory configured to store instructions; A processor configured to invoke the instructions from the memory and when executing the instructions is capable of implementing the method of testing the orientation performance of a GNSS orientation device according to any of claims 4, 8 to 11.
13. A machine-readable storage medium having stored thereon instructions for causing a machine to perform the method of testing the orientation performance of a GNSS orientation apparatus according to any of claims 4, 8 to 11.

Description

System, method, device and medium for testing orientation performance of GNSS orientation equipment Technical Field The application relates to the technical field of satellite testing, in particular to a system, a method, a device and a medium for testing the orientation performance of GNSS orientation equipment. Background With the rapid development of global navigation satellite system (GNSS, global Navigation SATELLITE SYSTEM) technology, GNSS orientation apparatuses are increasingly used in the orientation field. In order to ensure that the directional functional performance index of the GNSS directional device meets the practical application requirements, strict testing and evaluation are required. The performance test of the traditional GNSS directional device depends on laboratory analog signals, so that multipath effects, ionosphere interference and other interference scenes in a real environment and external complex influence factors cannot be completely reproduced, certain differences exist between the traditional GNSS directional device and the real signal environment, and the actual performance of the GNSS device is difficult to comprehensively reflect. The purely dynamic test environment (such as a vehicle-mounted platform and a mobile platform) can introduce motion errors, and the performance of the GNSS directional device and the interference of the external environment are difficult to separate. The existing static environment test method lacks of systematicness, orientation precision evaluation depends on external reference equipment (such as a gyroscope), and is high in cost and complex in operation. The prior art has the technical defects that the test environment of the orientation performance of the GNSS orientation equipment is greatly different from the real environment, the reliability of test results is low, and the number of the tested GNSS orientation equipment is limited. Disclosure of Invention The embodiment of the application aims to provide a system, a method, a device and a medium for testing the orientation performance of GNSS orientation equipment, which are used for solving the technical defects that the reliability of test results is low and the quantity of the tested GNSS orientation equipment is limited because the difference between the test environment and the real environment of the orientation performance of the GNSS orientation equipment is large in the prior art. In order to achieve the above object, a first aspect of the present application provides an orientation performance testing system of a GNSS orientation apparatus, the system comprising a main antenna, a plurality of movable slave antennas, a guide rail, a first passive power divider, a second passive power divider, a first active power divider, a second active power divider, a third active power divider, a fourth active power divider, a first power attenuator, a second power attenuator, an orientation testing apparatus, and a controller; The movable auxiliary antennas and the guide rail are arranged around the main antenna as a circle center, the movable auxiliary antennas are arranged on the guide rail, and the movable auxiliary antennas can move along the guide rail; the output end of the main antenna is connected with the input end of the first passive power divider, and the plurality of mobile auxiliary antennas are connected with the input end of the second passive power divider; The first output end and the second output end of the first passive power divider are respectively connected with the input end of the first active power divider and the input end of the first power attenuator, and the first output end and the second output end of the second passive power divider are respectively connected with the input end of the third active power divider and the input end of the second power attenuator; The output end of the first power attenuator is connected with the input end of the second active power divider, and the output end of the second power attenuator is connected with the input end of the fourth active power divider; The output end of the first active power divider is connected with the first input end of the GNSS signal main antenna of the directional testing device, and the output ends of the second active power divider are respectively connected with the GNSS signal main antenna input ends of the plurality of GNSS directional devices; The output end of the third active power divider is connected with the GNSS signal slave antenna second input end of the orientation test equipment, and the output end of the fourth active power divider is respectively connected with the GNSS signal slave antenna input ends of a plurality of GNSS orientation equipment; The communication end of the controller is respectively connected with the orientation test equipment and the communication ends of the GNSS orientation equipment and is used for testing the orientation performance of the GNSS orientation eq