RFmx SpecAn Memory DPD with RFmx LTE ( EVM + ACP ) Example (LabVIEW)

[MikhailK]

Overview

This example demonstrates how to use DPD in NI-RFmx with NI-LTE toolkit for Power Amplifier characterization

Description

This example demonstrates how to perform LTE DPD measurements with RFmx.

Users can choose the DPD Model from Memory Polynomial or Generalized Memory Polynomial to perform the test.

Users can view the relevant DPD results such as AM-AM / AM-PM Plots and AMPM Measurement in the DPD tab

Users can view the relevant LTE results such as ACP & EVM + Constellation in the LTE tabs

Note: There's no need to set NI-RFmx attributes again when returning to NI-RFmx session (after LTE session) because NI-RFmx caches all the RFmxInstr, signal, and measurement properties.

Instructions

1. Configure RF hardware settings (HW Resource Name, carrier frequency, reference level, etc.)

2. Run this VI.

3. Use tabs to select between RFmx DPD or LTE ACP + EVM measurements.

Note : Support file for the Reference Waveform File path should be present in the Support directory located in the same folder as this example.

( Support Files are attached with the example code below )

Requirements

Software

LabVIEW 2012 or LabVIEW 2013 or LabVIEW 2014

NI-RFmx SpecAn 2.0

NI-RFmx LTE 2.0

NI-RFSA 14.1

Hardware

5646R/5668R

Additional Images