微弱周期脉冲信号的取样积分-混沌系统联合检测方法  

The United Detecting Method of Sampling Integral and Chaotic System for the Weak Periodic Pulse Signals

作　　者：李月[1] 杨宝俊[2] 谭力[3] 卢金[1] 李世哲[2] 

机构地区：[1]吉林大学通信工程学院,长春130012 [2]吉林大学地球探测科学与技术学院,长春130026 [3]吉林大学机械学院,长春130025

出　　处：《电子与信息学报》2003年第12期1653-1657,共5页Journal of Electronics & Information Technology

基　　金：吉林省科技发展计划资助项目(自然基金类)(20020626)

摘　　要：为提高混沌系统检测微弱周期脉冲信号的能力,提出把取样积分与混沌系统相结合的检测方案.仿真结果表明在相同系统实验背景下,相结合的检测方案优于不加取样积分的检测方法;周期脉冲信号占空比变小,使检测到的最小脉冲幅度变大;输入噪声强度的降低可使检测系统临界相态简化.In order to improve the ability of chaotic system detecting weak periodic pulse signals, this paper proposes the detecting scheme uniting sampling integral with chaotic system. The simulation results indicate that the united detecting scheme precedes the detecting method without sampling integral under the same experimental background. Because occupied space ratio of the periodic pulse signals diminishes, the detected minimum amplitude increases. The intension decrease of input noise can simplify the critical phase state of detecting system.

关 键 词：混沌系统 微弱周期脉冲信号 取样积分 信号检测 信噪比 

分 类 号：TN911.23[电子电信—通信与信息系统]