Research on Interference Suppression of Pseudo-random Code Phase Modulation Fuse Based on EDTWD Analysis method
The anti-jamming ability of pseudo-random code phase modulation fuse is very strong. But the effectiveness of suppressing narrow-band interference is limited by the signal bandwidth. Thus, an effective method is developed to identify the narrow-band interference in the wide-band spread spectrum signal. Extended discrete-time Wigner-Ville distribution (EDTWD) analysis method is adopted to extract and reconstruct the narrow-band interference in the received signal of pseudo-random code phase modulation fuse. Then the interference is cancelled by the adaptive interference cancellation. The method doesnt require any prior knowledge of interference signal, makes the received signal distorted little and can also be used in the circumstance of some interference sources. The simulation result showed that the interference signal after being separated and then synthesized had the similar frequency characteristics as before.
EDTWD pseudo-random code phase modulation fuse interference suppression adaptive interference cancellation
Zhang Qing-hui Yin Da-feng
School of Information Science and Technology, Henan University of Technology Zhengzhou, 45001, China
国际会议
重庆
英文
442-444
2011-01-21（万方平台首次上网日期，不代表论文的发表时间）