Extended target detection for OFDM cognitive radar

The extended target detection problem for OFDM cognitive radar is considered. A subcarrier-modulation method is proposed to improve the detection performance under peak-to-average power ratio (PAPR) constraint. The optimised weights are designed by semi-definition relaxation followed with Gaussian r...

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Veröffentlicht in:	Electronics letters 2016-09, Vol.52 (19), p.1637-1638
Hauptverfasser:	Zhuang, Shanna N, Fang, Qingyuan, Ren, Bin
Format:	Artikel
Sprache:	eng
Schlagworte:	cognitive radio Electronics extended target detection problem Gaussian Gaussian processes Gaussian randomisation modulation OFDM cognitive radar OFDM modulation Orthogonal Frequency Division Multiplexing PAPR constraint peak‐to‐average power ratio Performance enhancement Radar radar tracking Radar, sonar and navigation semidefinition relaxation Simulation subcarrier modulation method Target detection target tracking
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Beschreibung
Zusammenfassung:	The extended target detection problem for OFDM cognitive radar is considered. A subcarrier-modulation method is proposed to improve the detection performance under peak-to-average power ratio (PAPR) constraint. The optimised weights are designed by semi-definition relaxation followed with Gaussian randomisation. The simulation results show that the proposed method achieves great improvement in both signal-to-inference-plus-noise ratio and PAPR while striking a good balance between the two performances.
ISSN:	0013-5194 1350-911X 1350-911X
DOI:	10.1049/el.2016.2316