一种基于STFT的数字信道化方法  

A Digital Channelization Method Based on STFT

作　　者：王开[1] 束坤[1] 

机构地区：[1]船舶重工集团公司723所,扬州225001

出　　处：《舰船电子对抗》2013年第5期56-60,共5页Shipboard Electronic Countermeasure

摘　　要：数字信道化接收机是电子战中应用最广泛的一种宽带侦察接收机。将短时傅里叶变换(STFT)与数字信道化相结合,阐述了基于STFT的信道化原理,通过Matlab仿真验证了该方法的正确性和可行性以及信号时频参数测量和分辨多信号的能力。Digital channelized receiver is the broadband reconnaissance receiver used most widely in electronic warfare. This article combines the concept of short-time Fourier transform （STFT） with digital channelization, explains the channelization principle based on STFT, validates the correct- ness and feasibility of this method ＆ the capability to measure signal time-frequency parameters and distinguish multiple signals through Matlab simulation.

关 键 词：雷达侦察接收机 数字信道化 短时傅里叶变换 

分 类 号：TN971.1[电子电信—信号与信息处理]