Satellite antenna pointing angle correctness verification method based on discrete point calculation

Abstract

The invention relates to a satellite antenna pointing angle correctness verification method based on discrete point calculation, in particular to a satellite antenna pointing control software ground test method, which is suitable for verification and evaluation of an inclined geosynchronous orbit navigation satellite reflector antenna pointing control function. According to the invention, the design method of the antenna pointing test case is defined, covers three types of pointing targets and is matched with the data type applied by the satellite. For actual test requirements, the constructedsimulation platform has the functions of data preprocessing, automatic test result comparison and automatic interpretation, and the test case design efficiency and flexibility are improved.

Description

technical field [0001] The present invention relates to a method for verifying the correctness of satellite antenna pointing angles based on discrete point calculations, in particular to a ground test method for satellite antenna pointing control software, which is suitable for verification and control of antenna pointing control functions on inclined geosynchronous orbit navigation satellite reflectors Evaluate. Background technique [0002] The Beidou-3 inclined geosynchronous orbit navigation satellite reflector antenna has the pointing function of three types of targets: ground station, ground moving target, and low-Earth orbit target. In the comprehensive test stage, in order to verify the correctness of the antenna pointing control function, the ground needs to simulate the whole process of antenna pointing to provide comparable data for the evaluation of the control function algorithm of the satellite antenna. The existing simulation tool platforms have the following...

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Problems solved by technology

For example, the commonly used commercial simulation platform Satellite Toolkit (STK), this platform can realize the continuous dynamic simulation of antenna pointing calculation, but its internal time system is not consistent with the Beidou time system, and the satellite telemetry update frequency and STK internal data update frequency also exist Differences, satellite-to-ground synchronization simulation verification is difficult to carry out

[0004] 2) Verify the antenna driving function in sections, ignoring the accuracy of the real-time response of the antenna under the data drive

At present, there is a lack of tools to simulate the whole process of antenna pointing, including pointing planning calculation, information flow transmission, antenna pointing angle generation, etc. During the test, the correctness of each function can only be verified in sections, which may lead to failure to find data in time during the test Delivery error, resulting in loss of satellite in orbit

[0005] 3) The input data is inconsistent, and the design of test cases is difficult

Due to the different information types of the above-mentioned parameters pointing to the three types of targets, the existing platform has a low degree of functional integration and engineering adaptability. When using case design, it is necessary to continuously convert input and output parameters, which cannot quickly and flexibly adapt to the test verification of multiple types of targets. requirements, thereby reducing test efficiency

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