突发通信中的自适应门限信号检测方法  

Adaptive Threshold Signal Detection Method for Burst Communication

作　　者：吴玉成[1] 陈宁[1] 高珊[1] 

机构地区：[1]重庆大学通信工程学院,重庆400044

出　　处：《电子与信息学报》2007年第12期2896-2898,共3页Journal of Electronics & Information Technology

基　　金：国家自然科学基金(60672097);重庆市教委项目(KJ060619)资助课题

摘　　要：该文针对分组突发通信中的信号检测问题,利用信号相关前后功率之比构建判决统计量,实现自适应门限信号检测。在判决门限中加入微小偏移量,避免实际应用中存在的虚警毛刺现象。在门限判决时加入滑动比较窗口,解决了检测精度不高的问题。理论分析和仿真结果表明,改进方案可以很好地实现信号的自适应门限检测。An adaptive threshold signal detection method based on the ration of signal power and correlation signal power for packet burst communication systems is studied. To avoid false alarm burrs in practical application, feeble offset is added in decision threshold. To raise the detection precision, a slipped compare window is introduced when executing decision. Theory analysis and simulation results show that the improved scheme can archive nice adaptive threshold signal detection performances.

关 键 词：信号检测 自适应门限 突发通信 

分 类 号：TN911.23[电子电信—通信与信息系统]