太赫兹科学与电子信息学报2025，Vol.23Issue(8)：772-783,792,13.DOI:10.11805/TKYDA2024637
分布式波形分集阵雷达目标检测与参数估计一体化
Simultaneous target detection and parameter estimation with distributed waveform diversity radars
摘要
Abstract
Aiming at the problem of weak target detection in traditional single-site radar,an integrated target detection and parameter estimation algorithm based on distributed waveform diversity array radar is proposed.The distributed waveform diversity array radar system consists of Frequency Diverse Array(FDA)-Multiple Input Multiple Output(MIMO)radar and Element Pulse Coding(EPC)-MIMO radar.Under the background of white noise,a binary hypothesis problem is constructed for each local radar station,where the target angle and distance information are unknown.Based on the above model,an adaptive detector is designed under the Generalized Likelihood Ratio Test(GLRT)criterion.The Coordinate Descent(CD)method and Gradient Projection Method(GPM)are employed to solve the estimates of target angle and distance information and obtain local detection statistics.Subsequently,at the fusion center,the global detection statistic for the final detection decision is constructed by calculating the logarithmic sum of multiple sets of local detection statistics.Simulation experiments verify that compared with single-site waveform diversity array radar,the distributed waveform diversity array radar improves the target detection probability.Compared with distributed phased array radar,the distributed waveform diversity array radar significantly enhances the target detection probability and parameter estimation performance.关键词
分布式波形分集阵雷达/广义似然比检测(GLRT)/角度与距离估计/坐标下降法/梯度投影法(GPM)Key words
distributed waveform diversity radars/Generalized Likelihood Ratio Test(GLRT)/angle and range estimation/Coordinate Descent algorithm/Gradient Projection Method(GPM)分类
信息技术与安全科学引用本文复制引用
朱嘉运,马润龙,李坤坤,魏法,张翔,兰岚..分布式波形分集阵雷达目标检测与参数估计一体化[J].太赫兹科学与电子信息学报,2025,23(8):772-783,792,13.基金项目
国家自然科学基金资助项目(62471348 （）
62101402) （）
