MATLAB: Will there be any effect on the result while multiplying two signals with the same time range but different sampling rate

multiplying signals with different sampling ratesampling ratetime range

will there be any effect on the result while multiplying two signals with the same time range but different sampling rate?

Best Answer

  • They have to have the same numbers of elements, or the element-wise multiplication will throw an error. You can multiply one as a column vector by the other as a row vector using matrix multiplication (not element-wise multiplication) to create a matrix.
    If they are the same lengths although different frequencies, they willl produce a ‘beat’ between the two of them essentially modulating each other. (This creates a double-sideband-suppressed-carrier signal.)