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This Quadrature Modulation Tutorial Consists of 4 Flash programs with embedded audio. These programs will allow you to learn about quadrature modulation and quadrature demodulation without getting overwhelmed by math.
|Flash Program Description||I Q Modulation Programs|
|Tutorial 1 Shows I-Q Modulation to change the phase of a signal, to change the frequency of a signal and to change the amplitude of a signal. This is the basis for AM, FM and Phase modulation when using quadrature ( I-Q ) modulation techniques.||click me|
|Tutorial 2 This program shows how Quadrature data is put into an FFT as complex data (i e as I+jQ). This program reveals how a complex FFT allows for more information than a real ony data stream. This program reveals how when I Q data is used that now only is the frequency of detected video known, but also whether the demodulated frequency came from the positive or negative side of the carrier.||click me|
|Tutorial 3 This program allows the user to adjust the incoming signals frequency and to see the I Q data stream that results. It also shows the beginner how to interpret the I Q data stream.||click me|
|Tutorial 4 This program shows how an I Q data stream is used to demodulate an Amplitude modulated signal.||click me|