摘要
分析直接序列扩频系统通信中的基于时域和变换域等传统干扰抑制方法存在的不足,提出一种基于离散傅立叶变换(DFT)的时域自适应陷波技术。当干扰为时变窄带干扰时,基于DFT的时域陷波技术优于传统时域和变换域的窄带干扰抑制技术。
The deficiency of interference suppression technology based on time domain and transform domain in DSSS system is analyzed. And then we proposed a time domain adaptive notch filter technique based on DFT which is better than the technology based on traditional time domain and transform domain in suppressing narrow band interference.
出处
《舰船电子工程》
2008年第4期84-86,共3页
Ship Electronic Engineering
关键词
干扰抑制
窄带干扰
陷波器
自适应
子带判决门限
interference suppression
narrow band interference
notch filter
adaptive
subband decision threshold
