摘要
信号脉内调制信息识别技术对密集和复杂电磁环境中辐射源的分选和识别有着重要意义.通过信噪比估计,将小波脊线法和平滑伪WVD法相结合,提出了一种提取非线性调频信号脉内特征的综合提取方法,实现在不同信噪比条件下准确提取非线性调频信号的脉内特征.仿真结果证实了算法的可行性.
The technique of extracting in-pulse modulation features is of great significance in sorting and extracting radiant source under the dense and complex electro-magnetic environment. By estimation of SNR and combining the wavelet transformation with smooth pseudo WVD, an integrated method of extracting in-pulse features of NLFM was proposed, which realized extracting accurately the in-pulse features of NLFM under the circumstances of various SNR. Simulation results show that this method is feasible.
出处
《空军雷达学院学报》
2006年第4期270-272,共3页
Journal of Air Force Radar Academy
