摘要
线性调频步进信号因其大的时宽带宽积及较低的采样率在高分辨雷达中倍受关注,单脉冲体制的雷达高精度测角在精确制导武器中应用越来越广泛。利用线性调频步进信号高分辨测距、单脉冲技术进行测角,从而形成基于扩展目标的合成高分辨距离-方位-俯仰三维像。仿真实验证明,此种成像方法可以得到较精确的目标散射中心的方位、俯仰角以及散射强度信息,对实现精确制导技术有着重要的理论意义和应用参考价值。
Linearity frequency modulated-stepped signal is double favored in high resolution radar because of its lower sampling rate and big product of time width and bandwidth, while high precision angle measurement of monopulse radar is more and more widely used in precision guided weapon. This paper adopts linearity frequency modulated-stepped signal to obtain high resolution range profile and the technique of monopulse to measure angle information, then three dimension profile of high resolution range-azimuth-elevation based on extended target is synthesized. Simulation experiment proves that this method can obtain relatively precise information on azimuth, elevation and scatter intensity of scatterer center,which has important signification and reference value on precise guide technique.
出处
《探测与控制学报》
CSCD
北大核心
2008年第B10期43-47,共5页
Journal of Detection & Control
关键词
线性调频步进信号
高分辨距离像
单脉冲雷达
三维成像
linearity frequency modulated-stepped signals high resolution range profile
monopulse radar
three dimension imaging
