Research on distance movement correction algorithm based on time-Shift

摘要

Keystone transform can correct range migration on the moving target in the PD radar coherent integration time, and improve the signal-to-noise ratio of the echo signal. However, there is a problem of complex operations when Keystone transform is applied to high-speed targets after interpolation operations, In this paper, the time-shifting envelope compensation method is proposed to solve the problem of large amount of computation. The algorithm can not only reduce the computational complexity obviously, but also improve the output SNR.