Efficient demodulation method for FMCW radar system

An efficient demodulation method designed for high frequency surface wave radar system is presented, which is a modified SRC (sampling rate conversion) algorithm without any anti-aliasing filter used inside. This paper demonstrates the new method by analyzing the structure of FMCW (Frequency-modulated continuous wave) radar and the computing complexity compared with the traditional methods is given. The algorithm has been implemented in our newly designed HF radar system.