干扰信号比 meaning in English

jam-to-signal ratio

We built up an experimental adaptive interference suppression system , the paper emphasizes on base - band subsystem which used lots of advanced chips for the hardware design , including of high - speed dsp , dedicated dsp , cpld and so on , and implemented ds - ss signal and interference generation , adaptive interference suppression , adaptive results analysis , etc . experimental results : for m - sequence ds - ss signal of length 7 , single interference of sir 20 db , the sir improvement was 18db ; for m - sequence ds - ss signal of length 7 , 4 interferences of sir 20 db , the sir improvement was 15db
在这部分硬件设计中，采用了高速通用dsp器件、专用dsp器件、可编程逻辑器件等，完成了扩频信号的产生、自适应抑制处理、抑制结果的分析等功能。实验结果显示：采用时域lms算法，对扩频信号(码长为7的m序列)和单干扰(干扰信号比为40db )情况，干扰抑制比优于18db ；对扩频信号(码长为7的m序列)和4等干扰(干扰信号比为20db )情况，干扰抑制比优于15db 。