【作者】 肖晶； 王虹； 毕波； 黄燕；

【Author】 XIAO Jing;WANG Hong;BI Bo;HUANG Yan;Nanjing University of Science and Technology;Key Laboratory of Science and Technology on Millimeter-wave Remote Sensing;

【机构】 南京理工大学； 毫米波遥感技术重点实验室；

【摘要】 本文提出利用三通道和差式毫米波辐射计来实现目标中心识别,以及俯仰平面和方位平面的测角功能。三通道毫米波辐射计利用和差器实现天线接收能量的和差,三通道信号经放大采样后,在数字信号处理阶段完成测角功能。信号处理电路以DSP F2812为主芯片,以CCS为编程平台,可实现实时测角。通过辐射计和模拟目标测试实验得到三通道信号,先利用MATLAB完成信号处理仿真,然后进行DSP编程和实践验证,最终识别出目标中心,并实现系统测角功能。更多还原

【Abstract】 This paper presents using the millimeter wave radiometer of three-channel sum-difference patterns to identify the target center,measure the angle respectively in pitch plane and amiuth plane.Three-channel millimeter wave radiometer do the attenna energy sum and difference by sum and difference network.Three-channel signal is used to measure the angle in the digital signal processing section after amplified and sampling.Signal processing circuit choose DSP F2812 as the chore chip,put CCS as the programming platform,to realize real-time angle measurement.Three-channel signal is required by the experiment of radiometer and target simulation.The signal processing simulation is done firstly by MATLAB,and then DSP programming and practical verification.Finnaly,the target center is identified,and the system angle measurement function is realized.更多还原