residual phase error

基本解释

The bifrequency correlation function of the expansion coefficients is presented and used to derive the residual phase error due to dispersion.
根据位相展开系数的双频相关求得了大气色散产生的剩余位相误差。
With this method, the time delay is estimated firstly, then the residual phase error. Through this way the movement error range that can be compensated by this algorithm is extended.
该方法首先估计时延，然后再对剩余误差进行相位估计，从而扩大了算法适用的运动误差范围。
As a result, the residual phase error caused by the SRC factor without range updating is reduced, so the focusing performance is dramatically improved and the effective swath width is enlarged.
第二步，该算法减小了SRC因式没有随距离更新所造成的剩余相位误差，改善了测绘带边缘目标的聚焦性能，极大的提高了有效测绘带宽；