The effect of local oscillator syntonization error and triggering time synchronization error on bistatic sar imagery are analyzed based on their error models . useful simulation results are provided for system design 本文重点研究了双基地sar本振相位同步误差与触发时间同步误差对成像的影响,建立了误差模型,给出了仿真试验结果,为系统设计提供了参考依据。