海军航空工程学院学报2017，Vol.32Issue(6)：517-522,6.DOI:10.7682/j.issn.1673-1522.2017.06.004
一种瞬时大带宽DRFM系统的信道化设计
Channel Distribution Scheme of an Instant Wideband DRFM System
高山 1翟龙军 1曲洪东 2姜志森1
作者信息
- 1. 海军航空大学,山东烟台264001
- 2. 陆军航空兵学院机载系,北京101123
- 折叠
摘要
Abstract
In order to generate wideband radar echo,DRFM system based on channelization technology is commonly used. In the design of channelized DRFM system, inappropriate channel distribution and multi-phase filter design can cause spectral aliasing,frequency component elimination and amplitude distortion.In this paper,a channel distribution scheme with 50% spectral aliasing for adjacent channels was proposed, and filter group of channelized DRFM system was opti?mized.On this basis,a high effect structure of instant wideband DRFM system was presented.Simulation results showed that radio signal memory and duplication could be implemented for signal that band less than Nyquist sampling frequency, with smaller amplitude distortion and without frequency component elimination.This design scheme coluld be used to du?plicate radar echo with instant wideband.关键词
数字射频存储/数字信道化/多相滤波/幅度失真/频谱混叠Key words
digital radio frequency memory/digital channelized receiver/multi-phase filtering/amplitude distortion/fre⁃quency overlap分类
信息技术与安全科学引用本文复制引用
高山,翟龙军,曲洪东,姜志森..一种瞬时大带宽DRFM系统的信道化设计[J].海军航空工程学院学报,2017,32(6):517-522,6.
