一种利用MATLAB软件和安捷伦E4438C仪器产生自定义信号的方法

A Method Using MATLAB Software and Agilent E4438C Vector Signal Source to Generate the Custom Waveforms

为了产生模拟接收机在复杂无线电波环境下的测试接收物理波形信号,给出一种使用MATLAB软件和安捷伦E4438C矢量信号源产生自定义物理波形信号的方法。以QPSK调制信号为例,给出MATLAB软件产生数字波形文件的详细代码,并且给出数字波形文件下载到E4438C仪器和使用E4438C产生物理波形文件的具体详细步骤。最后,通过示波器和EVM测试仪验证所产生的QPSK物理波形的正确性。

In order to generate the simulated receiving physical waveform signals in the complicated radio environment, gives a method using MATLAB software and Agilent E4438C vector signal source to generate the custom physical waveform signals. Takes QPSK modulation signal as an example, gives a detailed code of MATLAB software to generate the digital waveform file, and presents the specific and detailed steps of the digital waveform file download to the E4438C instrument and using E4438C to generate the physical waveforrn signal. Finally, the correctness of the QPSK modulation physical waveform signal generated by the method presented is verified by the observation using oscilloscope and EVM test instrument.