For an automotive surveillance radar system, fast-chirp train based FMCW (Frequency Modulated Continuous Wave) radar is a very effective method, because clutter and moving targets are easily separated in a 2D range-velocity map. However, pedestrians with low echo signals may be masked by strong clutter in actual field. To address this problem, we proposed in the previous work a clutter cancellation and moving target indication algorithm using the coherent phase method. In the present paper, we initially composed the test set-up using a 24 GHz FMCW transceiver and a real-time data logging board in order to verify this algorithm. Next, we created two indoor test environments consisting of moving human and stationary targets. It was found that pedestrians and strong clutter could be effectively separated when the proposed method is used. We also designed and implemented these algorithms in FPGA (Field Programmable Gate Array) in order to analyze the hardware and time complexities. The results demonstrated that the complexity overhead was nearly zero compared to when the typical method was used.
Research Interests
Radar Sensor; 레이더 센서; Radar System; 레이더 시스템; Radar Signal Processing; 레이더; Radar Detection; 레이더 탐지; Radar Classification; 레이더 인지; Automotive Radar; 차량용 레이더; Surveillance Radar; 감시 레이더; Commercial Radar; 산업 레이더; Defence Radar; 국방 레이더; IoT Radar; IoT 레이더