Acquiring an I/Q Waveform
- Updated2024-08-15
- 1 minute(s) read
Acquiring an I/Q Waveform
The Digital Signal Transceiver Driver allows you to receive digital data through the high-speed serial link from the device and emulate acquiring the RF signal in an I/Q waveform from the digital TRM. Complete the following steps to acquire I/Q data.
- Verify the rate of data arriving from the high-speed serial and set up the value in the API, if not automatically obtained through the FPGA firmware. In general, this value is fixed, and it can only be queried.
- Configure the acquisition properties, trigger properties, and the specific test parameters.
- Commit the properties to the instrument to set up the system to receive data.
- Initiate the acquisition process, which will make the instrument ready to receive data, wait for triggers, or any other means to start acquiring.
- Fetch the data from the onboard memory to the host.
- Repeat steps 4 and 5 as many times as necessary to obtain all data.
- Stop and release hardware after you are done with acquisition.
- Transfer the I/Q data into NI-RFmx or any other software for analysis or processing the specific measurements.
The following fundamentals are important to understand when acquiring I/Q data.