The Pluto Radio, USRP®嵌入式串联无线电和xilinx®Zynq®- Communicat万博1manbetxions Toolbox™的基于基于的无线电支持软件包可用于使用软件定义的无线电(SDR)硬件捕获RF信号。使用简单使用的MATLAB®interface, any signal can be captured either into the MATLAB workspace or directly to a file for post-capture processing in MATLAB and Simulink®。首先,捕获功能用于将FM广播频谱记录到一个文件中,然后将其读回DSP System Toolbox™Spectrum Analyzer,该文件突出显示了与本地广播电台相对应的峰值。接下来,捕获函数用于接收从局部天线到MATLAB工作区的LTE框架。然后,LTE Toolbox™用于解码已知的物理细胞标识符以验证接收。
该视频向您展示了如何使用Mathworks工具箱和SDR连接捕获RF波形。
This is accomplished using the capture method, which can be used to return data from the hardware to the MATLAB workspace and/or directly to a file.
First, I will make a recording of the FM Broadcast spectrum directly to a file using any supported SDR platform; in this case, Pluto Radio.
Then I will capture an LTE frame to the MATLAB workspace for analysis with the LTE Toolbox. For this I will use an Ettus E310 as the SDR platform.
让我们首先配置我的附加硬件d setting up an SDR receiver object to receive RF data off the air. Looking at the receiver properties, I will set the centre frequency to the middle of the FM Broadcast spectrum, and the baseband sample rate to the maximum value.
接下来,我将在接收器对象上称为“捕获”方法。我指定捕获长度和单位。我还指定了一个文件名,该文件名将用于存储捕获的数据。
后来,我决定处理捕获的数据。我创建一个基带文件读取器系统对象,并将其传递给生成的基带文件的名称。
我将输出从基带文件读取器传递到频谱分析仪中以渲染数据。
在频谱分析仪中,我可以观察到频域中的峰值。这些对应于本地FM广播电台。
接下来,我将在MATLAB工作区中捕获一个LTE框架。
I start by identifying a nearby antenna before setting up an SDR receiver system object in MATLAB with the appropriate centre frequency.
然后,我调用捕获功能,将捕获长度设置为单个LTE框架的持续时间。
捕获方法将数据作为输出返回,一旦返回,我就会使用LTE工具箱查找物理单元格标识符。
The functionality I have shown here is available in three different support packages: for Xilinx Zynq-Based Radio hardware, Analog Devices Pluto Radio, and Ettus Research E310 and E312. The support packages are free downloads based on Communications Toolbox.
To find these support packages, you can search for “matlab sdr” in your favourite search engine; the MATLAB and Simulink SDR page should be at or near the top. On the page you can find out more details on the support packages shown in this video, or some of our other support.
You can also select a web site from the following list:
选择中国网站(中文或英语)以获得最佳场地性能。其他Mathworks乡村网站未针对您所在的访问进行优化。