S-band SFCW Radar with SIMO Architecture for MTI Applications

This paper presents an MTI radar system working in S -band. The system is composed of SIMO array with one transmitting antenna and five receiving antennas, RF front-end and base band signal processor. The radar adopts stepped frequency continuous waveform, and generates high -resolution range profile from the IIQ signal obtained by self-mixing of transmitting and RI receiving channels. In the aspect of angle detection, the CSM angle spectrum is generated from the IIQ signals obtained by mixing the transmitting channel with all receiving channels. In the outdoor measurement scenario, the radar can perfectly detect human targets 5 m in front and 10 degrees apart.