how to generate continuous data symbol (random real number)?

Consider a symbol s, with zero mean, E{s}=0, variance 1 and amplitude A=2, such that, .

I want to generate a random real number s. Kindly help. Thanks in anticipation.

[Walter Roberson]

(rand()*2-1) * A

would be uniform distribution with mean 0 and in the range -A to +A.

Unfortunately it will not have the right variance, so you will not be able to use uniform random distribution.

Answer 1

[Pulkit]

Hi, 

According to my understanding you want to generate random real numbers “s” for some distribution with specific mean and variance. . Since the distribution is not mentioned, let us assume that you want to generate random symbols from the Normal Distribution, you can refer to the following link,

https://in.mathworks.com/help/releases/R2019a/matlab/math/random-numbers-with-specific-mean-and-variance.html

Hope this helps!

[Walter Roberson]

Normal distribution cannot generate in a range -- not unless you use a truncated normal distribution.

betarnd can give continuous random numbers within a range and that are non-uniform.