Space antenna array synthesis method based on satellite formation cooperation

The invention provides a space antenna array synthesis method based on satellite formation cooperation, which aims to solve the problem of low signal to noise ratio of single link reception in deep space communication. According to the method, a model which performs signal cooperative reception through formation of GEO satellite is established by a relative movement Hill equation; on the basis of fly-around of a circular formation by double satellites, an orbit is designed, expression formulas of delay difference and frequency difference of two links are offered, and the delay and frequency are compensated. On the basis, SIMPLE related algorithms are researched, two impact factors, residual difference and frequency difference, are added, impact of the two impact factors on phase estimated performance and signal synthesis performance is analyzed, and a reference for length selection of compensation data is provided. The method effectively improves the signal to noise ratio of the link, thereby improving the signal receiving performance of the deep space communication.