在滑动窗口中判决的自适应门限检测方法  

Adaptive Threshold Detection Scheme in Gliding Window

作　　者：吴玉成[1] 陈婷婷[1] 

机构地区：[1]重庆大学通信工程学院,重庆400030

出　　处：《系统仿真学报》2008年第10期2770-2773,共4页Journal of System Simulation

基　　金：国家自然科学基金(60672097)

摘　　要：对在突发通信中基于噪声功率和基于信号功率的自适应门限信号检测方法进行研究,提出了在滑动窗口中进行比较判决的自适应门限检测方法,用多个采样点进行比较判决以取得最优的同步信号。仿真比较不同情况下的系统性能,结果表明改进方案能得到精确的系统同步信号,低信噪比时,基于噪声功率的自适应检测方法检测概率较大。The detection schemes based on the estimation of noise power and signal power in burst communication system was researched, and an adaptive threshold detection scheme in a gliding window was proposed. Multi-samples were used for optimal system synchronization. System performances in different condition were compared, The simulation result shows that accurate system synchronization signal can be acquired. And the detection probability is higher by using the scheme based on the estimation of noise power,

关 键 词：突发通信 自适应门限 滑动窗口 同步 

分 类 号：TN911[电子电信—通信与信息系统]