是否可以在E4438C中使用N7624B生成LTE信号

嗨Maran - 它可以做你要问的一切，但它远非简单。
您可以使用N7624B Signal Studio软件生成LTE FDD信号，使用矢量信号发生器（即E4438C）输出波形，然后使用频谱分析仪或示波器捕获波形，并将数据保存到MATLAB文件中。
然后，您可以使用MATLAB分析记录的信号，但MATLAB中没有内置的调制分析功能。
这意味着您需要自己编写所有算法以在MATLAB中解调记录的信号。
为了从记录的信号中提取数据，您需要深入了解LTE调制格式并访问用于生成它的Signal Studio文件。
Signal Studio设置文件将为您提供信号的参数设置（即上行链路/下行链路，资源块分配，用户数量，调制格式，DCI格式等），3GPP标准文档可为您提供定义
通道，帧结构，解扰/解码算法等等。您可以想象，编写MATLAB代码来完成所有这些解析/计算将是一项非常耗时的工作，需要高水平的LTE标准专业知识
。
Agilent 89600B VSA软件提供解调和分析LTE信号的功能，可以从网上下载并在演示模式下使用，或者免费使用2周试用许可证。
如果您还没有这样做，我强烈建议您查看一下，以便更好地了解解调/分析LTE信号的复杂程度！问候 -



     以下为原文

  Hi Maran -

It is possible to do everything you’re asking about, but it is far from simple. You can generate the LTE FDD signal using the N7624B Signal Studio software, output the waveform using a vector signal generator (i.e. E4438C), then capture the waveform using a spectrum analyzer or scope and save the data to a MATLAB file. You can then use MATLAB to analyze the recorded signal, but there are no built-in modulation analysis capabilities within MATLAB. This means you would need to write all the algorithms yourself to demodulate the recorded signal in MATLAB. In order to extract the data from the recorded signal, you will need to have in-depth knowledge of the LTE modulation format and access to the Signal Studio file used to generate it. The Signal Studio setup file will provide you with the parameter settings for the signal (i.e. uplink/downlink, resource block allocations, number of users, modulation format, DCI format, etc.) and the 3GPP standard document can provide you with the definitions of the channels, the frame structure, descrambling/decoding algorithms, etc.

As you can imagine, writing the MATLAB code to accomplish all of this parsing/computation would be a very time-consuming endeavor, requiring a high level of expertise in the LTE standard. Agilent’s 89600B VSA software provides the ability to demodulate and analyze LTE signals and can be downloaded from the web and used in demo mode or with a 2 week trial license for free. If you haven’t already done so, I’d highly recommend checking it out to get a better feel for just how complicated demodulating/analyzing an LTE signal can be!

Regards -