Simulation Research of PRF and Swath Design for Spaceborne SAR

The paper introduces the design method of PRF choice,and analyses the factors that affect PRF,especially gives the simulation of PRF′s change when the SAR wors on the same beam after the altitude changes suddenly.It also discusses the effect degree of the spaceborne SAR beam design on the premise of observation swath redundancy design when the altitude and attitude of the satellite is changing.The simulation shows that the change of altitude and attitude must not overrun a stated range.It provides the avail reference for the engineering realization of the spaceborne SAR beam design.