M8195A+MXR604A Radar信号生成与解调

[{"insert":"1. "},{"attributes":{"bold":true},"insert":"关键词（应用技术）"},{"insert":"\nRadar，FMCW，M8195A，MXR604A，89601C\n2. "},{"attributes":{"bold":true},"insert":"摘要"},{"insert":"\nFMCW（Frequency Modulated Continuous Wave，调频连续波）雷达是现今应用最广泛的雷达技术之一。它具有特别好的range resolution（即分辨两个距离较近的目标的能力），FMCW雷达发射的RF信号频率会随着时间而改变，在一定的带宽（Bandwidth）范围内进行扫描。\nKeysight M8195A 任意波形发生器（AWG）在一个单插槽 AXIe 模块上同时提供多达 4 个输出通道，采样率高达 65 GSa/s，带宽高达 25 GHz，垂直分辨率为 8 位。M8195A 任意波形发生器的丰富功能可以为您生成需要的信号，满足数字应用、光电通信、先进研究、宽带雷达和卫星通信等应用的需求。\n3. "},{"attributes":{"bold":true},"insert":"测试系统搭建"},{"insert":"\n3.1. 仪器/附件/软件清单\n"},{"insert":{"image":"https://files.eteforum.com/article/202304/0da5f1e38a1cdda4.png"}},{"attributes":{"align":"center"},"insert":"\n"},{"insert":"\n3.2. 连接示意图\n"},{"attributes":{"bold":true},"insert":" "},{"insert":{"image":"https://files.eteforum.com/article/202304/92f6f93745ef659e.png"}},{"attributes":{"align":"center"},"insert":"\n\n"},{"insert":"4. "},{"attributes":{"bold":true},"insert":"测试步骤"},{"insert":"\n4.1. 连接设备仪器\n"},{"attributes":{"color":"#ff0000"},"insert":"连接好的场景图如下图所示。"},{"insert":"\n"},{"insert":{"image":"https://files.eteforum.com/article/202304/28e0addd96506816.png"}},{"attributes":{"align":"center"},"insert":"\n"},{"insert":"\t"},{"attributes":{"bold":true},"insert":" "},{"insert":"\n4.2. 操作步骤\n"},{"attributes":{"bold":true},"insert":"雷达信号生成"},{"insert":"\nM8195A雷达信号参数设置\n1) PC打开M8195A软件面板，进入Radar waveform选项\n"},{"insert":{"image":"https://files.eteforum.com/article/202304/818f7c739b57dda8.png"}},{"attributes":{"align":"center"},"insert":"\n"},{"insert":"2) 按图示设置radar信号参数\n"},{"insert":{"image":"https://files.eteforum.com/article/202304/b9662ddd1cff5e34.png"}},{"attributes":{"align":"center"},"insert":"\n"},{"insert":"设置脉冲调制为FMCW（线性调频），并把波形download(Send)到M8195A\n"},{"insert":{"image":"https://files.eteforum.com/article/202304/d1a8a64a62272fdd.png"}},{"attributes":{"align":"center"},"insert":"\n"},{"insert":"3) 打开M8195A输出并播放波形文件\n"},{"insert":{"image":"https://files.eteforum.com/article/202304/5d7d2896179cdfe6.png"}},{"attributes":{"align":"center"},"insert":"\n"},{"attributes":{"color":"#000000","bold":true},"insert":"雷达信号（FMCW）分析"},{"insert":"\n\t"},{"attributes":{"color":"#000000"},"insert":"MXR604A FMCW 信号分析设置"},{"insert":"\n"},{"attributes":{"color":"#000000"},"insert":"1) 示波器CH1阻抗设置成"},{"attributes":{"background":"#ffffff","link":"https://www.eteforum.com/admin/industry"},"insert":" "},{"attributes":{"color":"#000000"},"insert":"50Ω"},{"insert":"\n"},{"insert":{"image":"https://files.eteforum.com/article/202304/40b943a164e597a4.png"}},{"attributes":{"align":"center"},"insert":"\n"},{"attributes":{"color":"#000000"},"insert":"2) 调整示波器CH1的时间和幅度，以便观察清楚脉冲信号的幅度和周期"},{"insert":"\n"},{"attributes":{"color":"#000000"},"insert":"此处可以看到脉冲信号幅度略高于200mv，周期2us"},{"insert":"\n"},{"insert":{"image":"https://files.eteforum.com/article/202304/6384249a3ec631d7.png"}},{"attributes":{"align":"center"},"insert":"\n"},{"attributes":{"color":"#000000"},"insert":"3) 示波器上进入89601C,点击Input--Analog--Auto-range--Auto-range ALL"},{"insert":"\n"},{"insert":{"image":"https://files.eteforum.com/article/202304/1c97c9b2091820fb.png"}},{"attributes":{"align":"center"},"insert":"\n"},{"attributes":{"color":"#000000"},"insert":"4) 设置Trigger Style—Channel，Trigger Level—200mv"},{"insert":"\n"},{"insert":{"image":"https://files.eteforum.com/article/202304/584ca7518a595174.png"}},{"attributes":{"align":"center"},"insert":"\n"},{"attributes":{"color":"#000000"},"insert":"5) 设置中心频率和带宽（Freq=1GHz；Span=200MHz）."},{"insert":"\n"},{"attributes":{"color":"#000000"},"insert":"MeasSetup--Frequency--Center-1GHz；Span-200MHz"},{"insert":"\n"},{"insert":{"image":"https://files.eteforum.com/article/202304/95fd6d2242614ccc.png"}},{"attributes":{"align":"center"},"insert":"\n"},{"attributes":{"color":"#000000"},"insert":"6) 进入FMCW信号分析界面"},{"insert":"\n"},{"attributes":{"color":"#000000"},"insert":"MeasSetup--Measurement Type--Radar Analysis--FMCW Radar"},{"insert":"\n"},{"insert":{"image":"https://files.eteforum.com/article/202304/788d458038ae0b7d.png"}},{"attributes":{"align":"center"},"insert":"\n"},{"insert":{"image":"https://files.eteforum.com/article/202304/40251e541340ed99.png"}},{"attributes":{"align":"center"},"insert":"\n"},{"insert":"\n"},{"attributes":{"color":"#000000"},"insert":"7) 设置FMCW信号分析参数"},{"insert":"\n"},{"attributes":{"color":"#000000"},"insert":"MeasSetup--Measurement Type--Radar Analysis--FMCW Radar Properties"},{"insert":"\n"},{"attributes":{"color":"#000000"},"insert":"--Reference Synchronization--Auto-Detect Setup--Min Region Time Length"},{"insert":"\n"},{"attributes":{"color":"#000000"},"insert":"--450ns"},{"insert":"\n"},{"insert":{"image":"https://files.eteforum.com/article/202304/d939fc738beb1acc.png"}},{"attributes":{"align":"center"},"insert":"\n"},{"attributes":{"color":"#000000"},"insert":"8) 设置抓取时间长度，和抓取采样点数（Time--Acquisition Length-23us，Extra Acquisition-10000 samples）"},{"insert":"\n"},{"insert":{"image":"https://files.eteforum.com/article/202304/f271295b14e3594d.png"}},{"attributes":{"align":"center"},"insert":"\n"},{"attributes":{"color":"#000000"},"insert":"9) 观察分析结果"},{"insert":"\n"},{"insert":{"image":"https://files.eteforum.com/article/202304/7d4b38e8c514f2bf.png"}},{"attributes":{"align":"center"},"insert":"\n"},{"insert":"——作者 君鉴科技"},{"attributes":{"align":"right"},"insert":"\n"}]