%% Read 32 bit complex floating point data from GNU RADIO
%Script is using read_complex_binary.m and write_complex_binary.m which
%is provided by gr-utils:
%https://github.com/gnuradio/gnuradio/tree/master/gr-utils/octave
clear
folder = "C:\Users\Steffen\Documents\GNURadio\";
IQFileName = "test";
data = read_complex_binary(folder + IQFileName + ".iq");
SampleFreq = 24e6;
data_length = length(data);
t = 0:1/SampleFreq:(data_length-1)/SampleFreq;
%% REDUCE DATASET
data_cut = data(601:1800);
data_cut_length = length(data_cut);
t_cut = 0:1/SampleFreq:(data_cut_length-1)/SampleFreq;
%% PLOT REDUCED SET
hold on
plot(real(data_cut));
plot(imag(data_cut));
hold off
grid minor;
%% Write to file
write_complex_binary(data_cut,folder + IQFileName + " - shorted.iq")