一种宽带脉冲串信号模糊度函数实现方法  

A Realization Method for Ambiguity Function of Wideband Pulse Train Signal

作　　者：岳雷[1] 梁红[1] 杨长生[1] 

机构地区：[1]西北工业大学航海学院,陕西西安710072

出　　处：《鱼雷技术》2014年第2期96-99,共4页Torpedo Technology

基　　金：国家自然科学基金(61201322);(61379007)

摘　　要：宽带脉冲串信号的模糊度函数是信号分析、波形设计的有力工具以及检测估计常用的方法,实现宽带脉冲串信号的模糊度函数首先要合成副本,直接复制尺度伸缩后的子脉冲并乘以不同的权系数来合成副本时,会导致大多数副本向量中信息移位和缺失。针对这一问题,采取了对整个脉冲串压缩后再重采样的方法来合成副本信号,并进行了仿真验证。仿真结果表明,该方法具有可行性和实用性,为宽带脉冲串信号模糊度函数的实现提供了参考。The ambiguity function of wideband pulse train signal is a powerful tool for signal analyzing and waveform designing, and a common method in detection and estimation. Realization of the ambiguity function firstly needs syn- thesizing replicas. However, directly copying scale extension of the sub pulse and multiplying different weights to syn- thesize replicas may cause most replicas vectors losing and information missing. In order to solve this problem, this paper adopts a new method for synthesizing replica signal, in which the entire pulse train is firstly compressed and then resampled. Simulation on the pulse train of linear frequency-modulated waveforms＇ ambiguity function shows that the method is feasible and applicable to achieve ambiguity function of wideband pulse train signal.

关 键 词：脉冲串信号 模糊度函数 副本 重采样 

分 类 号：TJ630.34[兵器科学与技术—武器系统与运用工程]