Clear Filters
Clear Filters

how can i give randn function in the argument of qammod comment

2 views (last 30 days)
clear all
clc
close
M =8;
no_of_data_points = 128;
data_source= randn(1,4,'single');
stem(data_source); grid on; xlabel('Data Points'); ylabel('transmitted data phase representation')
title('Transmitted Data "O"')
qam_modulated_data = qammod(data_source, M);
scatterplot(qam_modulated_data);title('MODULATED TRANSMITTED DATA');
Error in qammod (line 95)
validateInput(x, M, bitInput, outputDataType);
Error in s (line 9)
qam_modulated_data = qammod(data_source, M);
how to solve this?I want to give randn as the argument of qammod function.

Accepted Answer

Walter Roberson
Walter Roberson on 28 Nov 2020
data_source = abs(round(randn(1,4,'single')));
Note that most of the time the result will be 0 or 1's, because more than 68% of randn() will fall within +/- 1
qammod only accepts non-negative integers.
I would suggest to you that if you want to use a random integer distribution that is not uniformly distributed, that you consider using a poisson distribution.

More Answers (0)

Categories

Find more on Get Started with Communications Toolbox in Help Center and File Exchange

Tags

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!