Recent content by assortim

X: multiplication Sigma: addition I think of that : x_qam(t)=m1(t)*cos(wp*t)+m2(t)*sin(wp*t) But what about the -Pi/2 ?

Homework Statement The problem is about the http://en.wikipedia.org/wiki/Quadrature_amplitude_modulation" . This is a work from my course Analog signal processing. Here is the scheme http://img99.imageshack.us/img99/9449/zrgwj2.jpg Two things to do : 1. Find the expression of x_qam(t) 2...