Millimeter-wave Radar Ground Clutter Characteristics Analysis And Research

Millimeter-wave radar is widely used in many fields, due to its advantages of high distance resolution, all-day capability and strong anti-interference. The land clutter is the main factor which impacts the veracity of radar detection, it's very usefull to master the clutter characteristic for improving the detecting capability under the background of clutter. So it is very important to do research in MMW radar clutter.This dissertation can be mainly divided into several parts: the theory about land clutter backscatter coefficient, processing methods of data about land clutter backscatter coefficient, the analysis and research of performance of detection of target under the millimeter wave radar of LFMCW and the clutter suppression.First of all, this dissertation discusses the related theories of land clutter backscatter coefficient under the millimeter wave radar, including the clutter models, the relation of the land clutter backscatter coefficient and grazing angle, the statistical properties, the characteristics of polarization, and so on.Secondly, based on the two common clutter backscatter coefficient models, this dissertation fits some land clutter backscatter coefficient curves about ground and grass, then analyses amplitude characteristics and related characteristics of land clutter.Finally, this dissertation does some research in the performance of target detecting under the millimeter wave radar of LFMCW, mainly discusses the performance of detection of the still target, then researches the Moving Target Indication(MTI) and simulates it.