The study on a new radar waveform with high rang resolution

A phase coded stepped frequency (PCSF) radar waveform is an improvement of linearity stepped frequency (SF) radar waveform. By combining intra-pulse phase and inter-pulse frequency modulations, the PCSF enables larger frequency step sizes than SF. With same system effective processing bandwidth, PCSI technique makes the bandwidth traverse much faster, shorter time of sent pulse cluster, and low data rate higher and Doppler sensitivity. A low stage pulse compression process is employed to achieve a variable range resolution. The results of the simulation for the characteristic mentioned above are presented to illustrate the properties of the PCSF.