For airborne bistatic SAR system

bistatic SAR uses separated transmitter and receiver flying on different platforms

the difference between the oscillator clock of receiver and transmitter will result in phase drifts error

which will accumulate during the whole imaging time.The paper will concentrate on the problem of frequency synchronization between a bistatic transmitter and receiver pair

firstly a possible solutions(GPS

+

high stable local oscillators) for synchronization error compensation is given

and the corresponding phase error aroused by the abo ve frequency synchronization method is analyzed

then a synchronization error compensation method based on the direct communications between the transmitter and receiver pair is studied in detail.At last

this paper shows the simulation of frequency synchronization error compensation of several representative

frequency synchronization error models

which shows the validity of the compensation method in the paper.