超宽带无线电探测波合成技术研究  

Research on Ultra-wideband Radio Detection Waveform Synthesis Technology

作　　者：高永芹[1] 杜会斌[2] 

机构地区：[1]河北工程技术高等专科学校,河北沧州061001 [2]山东大学信息科学与工程学院,山东济南250100

出　　处：《无线电工程》2006年第11期44-46,共3页Radio Engineering

摘　　要：阐述了利用有限时宽带宽积的窄带脉冲信号(线性调频脉冲信号或线性步进频脉冲信号)作为基本信号。通过线性步进频脉冲串合成超宽带雷达波形,即通过不同重复周期采用不同的雷达载频,将瞬时窄带雷达脉冲信号合成超宽带雷达波形一步进频脉冲串,然后再对脉冲串中不同的回波脉冲进行匹配滤波,并进行相参积累,来改善雷达系统的距离分辨率。The UWB Radar Waveform can be achieved by the step-frequency pulse train, and the waveform with instantaneous narrowband at any time can be processed with narrow-band equipments,and the whole radar system can get high range resolution. In this paper, the principle of synthetic wideband waveform by linear step-frequency pulse train for achieving high range resolution is introduced. In order to get high clutter rejection, the outputs of the different matched filters for different pulses in the train are accumulated coherently by attaching different weights. It can be applied in some fields.

关 键 词：超宽带雷达 匹配滤波器 时宽带宽积 线性步进频信号 

分 类 号：TN95[电子电信—信号与信息处理]