论文部分内容阅读
超宽带(UWB)通信系统通常采用高斯脉冲和Hermite脉冲作为发射脉冲,从其产生原理分析,发射脉冲不能同时满足时域和频域的共同约束条件。以高斯发射脉冲为例设计先加入去毛刺电路、高通滤波器等改进电路以实现时域优化,再在频域上用粒子群(PSO)算法对改进的发射脉冲电路的电参数进行优化,并做了注入干扰的仿真实验。实验表明:经PSO算法优化后的改进的UWB发射脉冲性能大大改善,满足UWB通信系统的各项指标要求。
Ultra-wideband (UWB) communication systems usually use Gaussian pulse and Hermite pulse as the transmission pulse, from which the principle analysis is generated. The transmission pulse can not meet the common constraints in the time and frequency domains at the same time. Taking Gaussian emission pulse as an example, an improved circuit such as deburring circuit and high-pass filter is first designed to achieve time domain optimization. Then the PSO algorithm is used to optimize the electrical parameters of the improved transmitting pulse circuit Made a simulation experiment of injection interference. Experiments show that the improved UWB transmission pulse performance optimized by the PSO algorithm is greatly improved, meeting the requirements of the UWB communication system.