Keysight Technologies X-Series, Руководство по программированию

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Keysight CXG, EXG, and MXG X-Series Signal Generators Programming Guide 285
Creating and Downloading Waveform Files
Programming Examples
— byte swapping and interleaving for little endian order data
— I and Q interleaving for big endian order data
— binary data file storing to a PC or workstation
— reversal of the data formatting process (byte swapping, interleaving, and
normalizing the data)
function main
%
% Program name: offset_iq_ml
% Using MatLab this example shows how to
% 1.) Create a simple IQ waveform
% 2.) Save the waveform into the EXG/MXG Internal Arb format
% This format is for the N5182B
% 3.) Load the internal Arb format file into a MatLab array
% 1.) Create Simple IQ Signal
*****************************************
% This signal is a single tone on the upper
% side of the carrier and is usually refered to as
% a Single Side Band Suppressed Carrier (SSBSC) signal.
% It is nothing more than a cosine wavefomm in I
% and a sine waveform in Q.
%
points = 1000; % Number of points in the waveform
cycles = 101; % Determines the frequency offset from the
carrier
phaseInc = 2*pi*cycles/points;
phase = phaseInc * [0:points-1];
Iwave = cos(phase);
Qwave = sin(phase);
% Alternate way to calculate the waveform RMS voltage