Frequency Shift Keying (FSK)
FSK is a digital modulation technique where each bit is represented by a different carrier frequency:
0 → f0, 1 → f1
The transmitted FSK signal can be represented as:
s(t) = A cos(2Ī fi t), i ∈ {0,1}
When transmitted over a noisy channel, Additive White Gaussian Noise (AWGN) spreads the received signal. This simulation shows the effect of noise on the FSK constellation by plotting each symbol based on its frequency and amplitude.