摘要
直序扩频通信系统中的抗窄带干扰算法研究一直是众多学者的热门研究课题。文章采用了一种改进的重叠FFT频域干扰抑制算法,该算法能实现信号的完美重构。理论证明该算法能有效克服FFT采用数据加窗引起的扩频信号失真及误码率恶化。仿真结果也验证了该算法的有效性。
Narrow-band interference suppression in the direct sequence spread spectrum communication system has been a hot research area for many scholars. In this paper, an improved lapped FFT algorithm is used to transform the received data signals to the frequency-domain wherein adaptive excision is performed. The algorithm can perform perfect reconstruction for the received signals. Theoretical results show that it can completely eliminate both the spread spectrum signals distortion and BER degradation due to windowing. Theoretical results are confirmed by computer simulation.
出处
《四川理工学院学报（自然科学版）》
CAS
2009年第3期87-89,共3页
Journal of Sichuan University of Science & Engineering(Natural Science Edition)
关键词
扩频通信
干扰抑制
快速傅立叶变换(FFT)
重叠相加
spread spectrum communications
interference suppression
Fast Fourier Transform （FFT）
overlapand-add
作者简介
李然（1982-），男，江西新余人，硕士生，主要从事电子对抗方面的研究。
