Average of Matrix [AxB] of Complex value

I have Some IQ data which is a 1000x1 array.

Now I want to apply this equation Σ((I² + Q²)/N/100),

Is there any MATLAB function to prcess this operation ?

[KSSV]

I and Q two matrices with size 1000x1 ?

[Touhidul Anwar]

One matrix.

[KSSV]

Then what is I and Q in the equation?

[Touhidul Anwar]

Okay, forget about IQ. I have one matrix of complex data. Now I want to apply thisoperation : Now I want to apply this equation Σ((I² + Q²)/N/100)

[KSSV]

You have only one matrix.... what is I and Q? Is it by chance real and complex part?

[Touhidul Anwar]

Forget about IQ. I have a matrix of complex value.

[Santosh Fatale]

I need some clarification on matrix I and Q. Are you refering In-phase and Qudrature-phase compenent of complex signal which are respectively Real and Imaginary part of the signal under consideration?

Answer 1

[Pratik]

Hi Touhidul,

As per my understanding, you want to apply the formula Σ((I² + Q²)/N/100 over an array of complex numbers.

Assuming that “I” and “Q” in the formula represent the real and imaginary part of the numbers in the array, please refer to the following MATLAB code to calculate the result:

% Total number of samples  
N = length(iqData); % here “iqData” represents the array of complex numbers

result = sum(abs(iqData).^2) /N/100;

“abs(iqData).^2” computes the square of the magnitude of each complex sample, which is equivalent to I^2 + Q^2 for each sample. “sum” adds up all the values of the samples.

Hope this helps.