The traditional onboard satellite antenna tracking system uses a variety of sensors

which causes many problems such as high cost of hardware

complicated software interfaces

slow operating rate of system

low precision and so on.In order to overcome these problems

a multi-erial GPS attitude measurement method is put forward

which installs the GPS antenna directly on recieving antennas.According to the data of the 3D position information of each GPS antenna

the attitude of the satellite antenna can be calculated.According to the satellite position

the angle of the antenna relative to the satellite can be calculated and tracked.So one type of sensors can be used to complete the attitude measure and control of onboard antenna automatic tracking system.After several tests on inner lake and sea

the result shows that the TV signal strength is maintained between 60 % and 70 % and the test data of position error from mobile tracking NO.2 Asian satellite is less than ±1.5°.This design has the advantage of simple-testing

small error

low cost

easy to use.It has broad market prospect.