Title :
Detection improvement by modified modulation error rate of reference signal in passive radar
Author :
Hui Tang ; Xianrong Wan ; Lina Hong ; Wei Chen ; Jianxin Yi
Author_Institution :
State Key Lab. of Complex Electromagn. Environ. Effects on Electron. & Inf. Syst., Luoyang, China
Abstract :
Reference signal plays an important role in passive radar signal processing. Passive radar exploits the third-party radio sources as illuminators of opportunity to detect targets of interest. It is well known that bit error rate (BER) is used to represent the quality of communication. However, BER is unknown in passive radar. This paper exploits modulation error rate (MER) extracted from symbol constellation diagram to quantify the quality of reference signal, which is practically feasible in passive radar. Then simulation results with respect to the influence of reference signal on clutter suppression and matched filter are both given. Moreover, modified-MER (MMER) of reference signal is presented to improve detection performance. The effectiveness is verified by simulation results in digital terrestrial multimedia broadcasting (DTMB) based passive radar.
Keywords :
echo suppression; error statistics; matched filters; modulation; object detection; passive radar; radar clutter; radar signal processing; BER; DTMB; MMER; bit error rate; clutter suppression; communication quality; digital terrestrial multimedia broadcasting; matched filter; modified modulation error rate; modified-MER; opportunity illuminators; passive radar signal processing; reference signal quality; symbol constellation diagram; target detection performance improvement; third-party radio sources; Bit error rate; Clutter; Matched filters; Modulation; Passive radar; Signal to noise ratio;
Conference_Titel :
General Assembly and Scientific Symposium (URSI GASS), 2014 XXXIth URSI
Conference_Location :
Beijing
DOI :
10.1109/URSIGASS.2014.6929793
