FM-DCSK UWB接收机优化  

Optimization of FM-DCSK UWB Receiver based on Seeker Optimization Algorithm

作　　者：陈秉试[1] 

机构地区：[1]厦门海洋职业技术学院,福建厦门361012

出　　处：《通信技术》2011年第9期21-23,共3页Communications Technology

摘　　要：基于搜索者优化算法(SOA,Seeker Optimization Algorithm),首次将启发式搜索优化的理念引入到调频差分混沌键控超宽带接收机的积分时间最优化问题中。分析了积分时间对系统性能的影响,在IEEE 802.15.4a室内信道下得到给定信噪比的最优积分时间及其分布,同时也给出了最优积分时间并随信噪比变化的趋势。仿真结果表明,采用SOA较之传统方法更能高效地找到最优值。结论给该系统实现中的参数选择提供了有力依据,新理念的引入也将对难以用闭合数学模型表示的系统优化提供有益指导。Based on SOA（seeker optimization algorithm）,the optimal integration time（OIT） of frequency-modulated differential chaos shift keying（FM-DCSK） ultra-wideband（UWB） receiver is studied with the indoor channel models of IEEE 802.15.4a.Effect of integration time on the system performance is analyzed.The heuristic search algorithm SOA is first introduced into the optimal integration time.With SOA,OIT and its probability distribution of given signal-to-noise ratio（SNR） are worked out.The trend of OIT against different SNR is also given.The simulation results show that SOA could find optimal value more easily than traditional method,and these results are useful for implementation of receive.The introduction of new conception is convenient for the system optimization,which is difficult for a closed form model.

关 键 词：调频差分混沌键控超宽带接收机 最优积分时间 搜索者优化算法 

分 类 号：TN914.3[电子电信—通信与信息系统]