摘要
TOA(脉冲到达时间)估计是检测和截获非合作突发通信信号的关键,在通信对抗中至关重要。在介绍基于自相关(AC)算法TOA估计原理的基础上,讨论了在低信噪比情况下自相关算法的门限设置问题。采用双门限方法对门限设置进行了改进,并通过计算机进行了仿真分析和验证。
The estimation of time of arrival （TOA）of impulse signal is the key point for detection and interception of burst and non -cooperative communication signals,and it is very important for communication countermeasure.Based on a introduction of the AC -TOA,a detailed discussion about the threshold setting of AC -TOA in low SNR is presented,by using the method of double threshold,the improvement to the threshold setting is conducted.Finally,the performance of the algorithms is verified by computer simulation.
出处
《微处理机》
2014年第4期39-43,共5页
Microprocessors
