Random noise radar interferometry
Random noise radar interferometry
复制标题
随机噪声雷达干涉测量
DOI：
10.1117/12.257243
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发表时间：
1996
期刊：
影响因子：
--
通讯作者：
R. Palmer
中科院分区：
文献类型：
--
作者：
R. Narayanan;Robert D. Mueller;R. Palmer
提出了一种在传输白色高斯随机噪声的超宽带雷达系统中注入相干的新技术。通过执行接收信号与发送信号的时延副本的外差相关，在系统中引入相干。这种操作保留了在传统零差相关接收机中丢失的反射信号的相位。接收信号的相位的知识允许将系统配置为用于方位扫描和横向速度估计的间隔天线干涉仪。本文介绍了随机噪声雷达干涉测量的基本理论，并提出了使用内布拉斯加大学的1-2 GHz随机噪声雷达系统配置为雷达干涉仪获得的第一个结果。
A novel technique has been developed to inject coherence in an ultrawideband radar system that transmits white Gaussian random noise. Coherence is introduced in the system by performing heterodyne correlation of the received signal with the time-delayed replica of the transmit signal. This operation preserves the phase of the reflected signal which is lost in a traditional homodyne correlation receiver. Knowledge of the phase of the received signal permits the configuration of the system as a spaced antenna interferometer for azimuthal scanning and transversal speed estimation. This paper describes the basic theory of random noise radar interferometry, and presents first results obtained using the University of Nebraska's 1-2 GHz random noise radar system configured as a radar interferometer.