Signal decomposition of HF radar maneuvering targets by using S~2-method with clutter rejection |
| |
Authors: | Yinsheng Wei Shanshan Tan |
| |
Institution: | Department of Electronics Engineering, Harbin Institute of Technology, Harbin 150001, P. R. China |
| |
Abstract: | Multiple maneuvering targets signal processing in high frequency radar is challenging due to the following difficulties:the interference between signals is severe because of significant spread of the target Doppler spectrum,the low signal to clutter ratio (SCR) environment degrades the performance of signal processing algorithms.This paper addresses this challenging problem by using an S 2-method and an adaptive clutter rejection scheme.The proposed S 2-method improves the S-method by eliminating interference between signals,and thus it enables multi-target signals to be reconstructed individually.The proposed adaptive clutter rejection scheme is based on an adaptive notch filter,which is designed according to the envelop of the clutter spectrum.Experiments with simulated targets added into radar sea clutter echo and real air target data illustrate the effectiveness of the proposed method. |
| |
Keywords: | multiple maneuvering target high frequency (HF) radar time-frequency analysis adaptive clutter rejection |
本文献已被 CNKI 维普 万方数据 等数据库收录! |