一种适用于双极化火控雷达的慢速目标检测方法及FPGA实现  

Method and FPGA Implementation for Slow-Moving Target Detection Based on Dual Polarization Fire Control Radar

作　　者：汤卫红[1] TANG Weihong

机构地区：[1]海军装备部

出　　处：《现代导航》2024年第3期221-225,共5页Modern Navigation

摘　　要：针对火控雷达在近区强杂波背景下慢速目标的检测问题,提出了一种适用于双极化火控雷达的慢速目标检测方法。该方法采用脉内分时变极化收发的设计,利用极化正交抑制近区杂波对接收动态的影响,同时,给出基于脉内变初相拉偏目标多普勒的闭式解及现场可编程门阵列(FPGA)实现,所提方法能够可靠地实现强杂波背景下慢速目标的检测,工程实现性高。最后,通过仿真验证所提方法的有效性。In view of the problem of slow-moving target detection in heavy clutter background,a slow-moving target detection method is proposed based on the dual polarization fire control radar.The design of intra pulse time-varying polarization Transmitter/Receiver(T/R) is used,and polarization orthogonality is utilized to suppress the impact of near-filed clutter on reception dynamics.Meanwhile,a closed form solution based on intra pulse time-varying initial phase pull-off target doppler is provided,as well as Field Programmable Gate Array(FPGA) implementation.The proposed method can reliably achieve the detection of slow-moving targets in heavy clutter background,with high engineering feasibility.Finally,the effectiveness of the proposed method is verified through Matlab simulation.

关 键 词：杂波 慢速目标检测 变初相 现场可编程门阵列 

分 类 号：TN953[电子电信—信号与信息处理]