Analysis of Incoherent Frequency-Shift Keyed Systems
Soon Yil Kwon, N. M. Shehadeh · IRE Transactions on Communications Systems · 1975
A Gauss quadrature rule (GQR) is used to develop an efficient series representation of a band-limited Gaussian process. This representation allows one to analyze the performance of an incoherent frequency-shift keyed (FSK) system under the influence of an additive Gaussian noise. This system consists of two parallel filters followed by two squarers, with the sum of their outputs fed to an integrate-and-dump detector. Numerical results are presented for some cases of practical interest.