
Technical discussion about Matlab and issues related to Digital Signal Processing.
hi, i need help in sampling(matlab coding) a four channel AM modulated signal each at carrier frequencies 400Hz,1000Hz, 1600Hz and 2600Hz respectively... how will i sample my signal in such a way that 400Hz signal spectrum gets repeated at zero carrier frequency, so that i can apply a LOW PASS FILTER to extract my very first channel... kindly help me out... regards Nosheen