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.
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)
关键词
脉冲串信号
模糊度函数
副本
重采样
pulse train signal
ambiguity function
replica
resampling
