摘要
为了提高DSSS信号率线检测器性能,将Duffing振子用于DSSS信号的率线检测。阐述了基于Duffing振子的检测方法,给出了扩频信号和Duffing振子策动力的相差与最低可检测信噪比之间的关系曲线及方程。仿真表明,该方法能检测到信噪比为-29.01 dB的DSSS/BPSK信号。
Duffing Oscillator is used to detect rate- line of direct sequence spread spectrum（DSSS） signal for the purpose of improving the performance of rate - line detector. The detection method based on Duffing oscillator is discussed. Relative curve and equation between minimum reachable signal - to - noise ratio（SNR） and phase difference of DSSS signal and the reference signal of Duffing oscillator are presented. Simulations show that DSSS/BPSK signal at SNR = - 29.01 dB can be detected by the method.
出处
《电讯技术》
北大核心
2011年第7期42-46,共5页
Telecommunication Engineering
