Reference Data IQ Values (Custom OFDM)

The Reference Data IQ Values parameter specifies an array of values that indicate reference data (refData) in-phase/quadrature (IQ) values. Each reference data (refData) in-phase/quadrature (IQ) value of the subcarrier is represented by a complex in-phase/quadrature (IQ) value, real part first, then imaginary part.

You can use the Load Reference Data IQ Values button to load a text file containing the reference Data IQ values.

Reference Preamble I-Q File

The Data I-Q file defines the expected I and Q values for each data subcarrier. This file contains I and Q values for every data subcarrier (Resource Type Resurce Type specifies the function of the measurement subcarriers; preamble, pilot, data, All, UserN, Unknown, or Null subcarrier 0) defined in the Resource Map file The Resource Map file defines the function of each subcarrier in each symbol, describing whether it is a preamble, pilot, data or null subcarrier.. Each time the demodulator encounters a “0” in the Resource Map file, it reads the next two values from the Data I-Q file and uses these values as the ideal I-Q location for that data subcarrier.

For more information, see "Data I-Q File" in the Making a Custom OFDM Measurement tutorial.