The FMCW(Frequency Modulation Continuous Wave) radar possesses range-velocity ambiguity to identify the correct combination of beat frequencies for each target in the multi-target situation. It can lead to ghost targets and missing targets, and it can reduce the detection probability. In this paper, we propose an effective identification algorithm for the correct pairs of beat frequencies and the signal processing hardware architecture to effectively support the algorithm. First, using the correlation of the detected up- and down-beat frequencies and Doppler frequencies, the possible combinations are determined. Then, final pairing algorithm is completed with the power spectrum density of the correlated up- and down-beat frequencies. The proposed hardware processor has the basic architecture consisting of beat-frequency registers, pairing table memory, and decision unit. This method will be useful to improve the radar detection probability and reduce the false alarm rate.
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