火力与指挥控制2023，Vol.48Issue(12)：27-33,7.DOI:10.3969/j.issn.1002-0640.2023.12.004
基于改进Radon-wigner变换的微弱目标加速度估计算法
Weak Target Acceleration Estimation Algorithm Based on Improved Radon Wigner Transformation
摘要
Abstract
An improved RWT algorithm is proposed to solve the problems of high complexity and low accuracy of target acceleration estimation of linear frequency modulated continuous wave(LFMCW)radar by existing Radon Wigner transformation(RWT).The algorithm obtains the rough estimation of acceleration through the entropy method,calculates the second-order origin moment of RWT results to reduce the amount of search calculation,and proposes RWT interpolation method,which is applied to iterative RWT to improve the accuracy of acceleration estimation.The experimental results show that the algorithm can accurately detect uniformly accelerated weak targets in the case of low signal-to-noise ratio,with less computation quantity and higher precision.关键词
Radon-Wigner变换/微弱目标/计算量/高精度Key words
Radon Wigner Transformation/weak target/calculation quantity/high precision分类
信息技术与安全科学引用本文复制引用
祁萍萍,李琦,韩壮志..基于改进Radon-wigner变换的微弱目标加速度估计算法[J].火力与指挥控制,2023,48(12):27-33,7.基金项目
国家自然科学基金(61601496) （61601496）
河北省自然科学基金资助项目(F2019506037) （F2019506037）
