CAJ | 학술논문

针对雷达情报侦察中对称三角调频连续波（STLFMCW）信号的检测问题，论文将Wigner-Hough Transform （WHT）对线性调频（LFM）信号的最优检测理论与雷达信号处理中脉冲累积的思想相结合，提出了周期WHT（PWHT）算法，并对该算法的性质进行了具体分析。同时根据STLFMCW 信号与线性调频连续波（LFMCW）信号的联系，提出了将PWHT算法用于STLFMCW信号的检测流程，最后用Matlab对该算法进行了仿真验证。仿真结果表明，在相同的条件下，当信噪比为-3dB时，Pseudo Wigner-Ville变换、WHT、分数阶Fourier变换与本文算法对STLFMCW信号的检测性能都很好；然而当信噪比降到-9dB时，与其它三种算法相比，文中算法对STLFMCW信号的检测性能明显更加优越。
침대뢰체정보정찰중대칭삼각조빈련속파（STLFMCW）신호적검측문제，논문장Wigner-Hough Transform （WHT）대선성조빈（LFM）신호적최우검측이론여뢰체신호처리중맥충루적적사상상결합，제출료주기WHT（PWHT）산법，병대해산법적성질진행료구체분석。동시근거STLFMCW 신호여선성조빈련속파（LFMCW）신호적련계，제출료장PWHT산법용우STLFMCW신호적검측류정，최후용Matlab대해산법진행료방진험증。방진결과표명，재상동적조건하，당신조비위-3dB시，Pseudo Wigner-Ville변환、WHT、분수계Fourier변환여본문산법대STLFMCW신호적검측성능도흔호；연이당신조비강도-9dB시，여기타삼충산법상비，문중산법대STLFMCW신호적검측성능명현경가우월。
Aimed at STLFMCW signal detection in radar reconnaissance ,the paper combines the optimal LFM detec-tion ability of Wigner-Hough Transform and pulse integration technology .Periodic WHT algorithm is proposed and the properties of the proposed algorithm are analyzed .According to the relationship of STLFMCW and LFMCW ,PWHT algo-rithm is used for STLFMCW signal detection .At last ,it is verified by Matlab simulation .The results show detection per-formance of the algorithm is the same as Pseudo Wigner-Ville transform ,WHT and fractional Fourier transform when SNR is -3dB ;detection performance of the algorithm is better than other algorithms when SNR goes down to -9dB .