MB-UWB系统中的干扰检测研究

分析研究了MB-UWB通信系统的干扰检测算法.针对传统MB-UWB通信系统中所存在的数据传输速率的不足,提出了改进的并行MB-UWB的系统方案,为了获得传输数据速率的提高,该方案采用了并行体制,并对MB-UWB系统各子带信号的正交化进行了设计.对改进的并行MB-UWB通信系统进行了数学分析和描述.基于并行MB-UWB系统方案,进一步提出了一种新的低采样率的干扰检测算法,并对该算法的处理过程和可行性进行了数学分析和系统仿真.分析和仿真结果表明,所提新算法可在较低的采样速率上,完成对与共存干扰的有效检测,并可与改进的MB-UWB通信系统的干扰抑制处理相结合,明显改善共存UWB系统的误码率性能.

Interference Detection for MB-UWB Communications

The algorithm of interference detection for Multi-band Ultra-wideband communication system is analyzed and discussed in this paper. A modified scheme named parallel multi-band UWB is presented to improve the data transmission speed of the traditional MB-UWB scheme. In order to meet the requirement for high data transmission speed, an orthogonal operation of sub-pulse is designed. The performance of interference suppression for parallel multi-band ultra-wideband communications is mathematically analyzed and described. Based on this new scheme, a new algorithm named parallel sub-pulse interference detection is proposed. This new algorithm can be realized in low level sample rate. Mathematic analysis and computer simulation for this new algorithm are made. The simulation results show that the new algorithm can detect the coexisting interference effectively in low sample rate and improve the BER performance of parallel multi-band UWB communication system evidently in combination with the interference suppression measures.