Adaptive Threshold for Fast Signal Detection in Multi-target Tracking
An adaptive threshold algorithm is used for frequency-shift keying (FSK) demodulation in multitargets and radar communication system. The special algorithm is needed because of the radar burst signal in this system. The selection of the threshold is generally a tradeoff between the goals of maximizing the probability of detection while minimizing false alarm. It replies radar pulse immediately without carrier synchronization, so the threshold is calculated by the priori knowledge of the signal amplitudes. CIC filter can save resource and is used after first downconversion, but its performance of detection is not as good as FIR filter. Simulation results show that the adaptive threshold algorithm can reduce the probabilities of miss detection and false alarm.
adaptive threshold signal detection false alarm CIC filter
Haiying Shang Jianping An Weiyu An Hangcheng Han
School of Information and Electronics Beijing Institute of Technology Beijing, China
国际会议
长沙
英文
429-432
2010-05-11（万方平台首次上网日期，不代表论文的发表时间）