A whole-star test method for data transmission antenna based on small satellite information system

Abstract

The invention provides a data transmission antenna whole-satellite testing method based on a minisatellite information system. At first, orbital data are input to a satellite attitude control system and a GPS dynamic simulator, by regulating orbit parameters of the satellite attitude control system, controlling start-up time of the GPS dynamic simulator and satellite-arrow separating time, and combining a program control command and a program control data block sequence, time information, orbit information and attitude information of the satellite attitude control system, a GPS receiver and a satellite task distribution system are completely synchronized, testing data are obtained by controlling a data transmission antenna to carry out ground station tracking, and finally, by comparing theoretical data and the testing data of antenna tracking, actual antennal tracking angle errors under different orbit conditions and different satellite attitudes are obtained. According to the data transmission antenna whole-satellite testing method, the orbit and time information state of a minisatellite are accurately simulated, testing of the data transmission antenna under the whole-satellite state of the minisatellite is achieved, and the method is applied to other types of minisatellites at present.

Description

technical field [0001] The invention relates to a whole-satellite digital transmission antenna simulation on-orbit condition based on a small satellite information system and a method for testing the precision of a pointing ground station, which belongs to the field of small satellite ground testing. Background technique [0002] High-code-rate point-wave-speed dual-polarized antenna (hereinafter referred to as data transmission antenna) is a new type of ground data transmission antenna, which is characterized by high transmission rate, high gain, and low power consumption, but it also requires the satellite to be flexible, Various antenna on-orbit control methods, precise ground pointing accuracy and whole-satellite testing methods. [0003] This type of antenna has been used on ZY-03, XX-11 and other remote sensing satellites. The small satellite platform used this type of data transmission antenna on the GF-1 satellite for the first time. Therefore, for the small satellit...

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Problems solved by technology

[0009] The technical solution problem of the present invention is: to overcome the deficiencies in the prior art, provide a kind of data transmission antenna whole satellite test method based on the small satellite information system, the present invention accurately simulates the small satellite orbit, time information state, solves the problem The test problem of data transmission antenna under the condition of small satellite whole star

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