The Performance of Fading Frequency-Shift-Keyed Telemetry Systems with Bandpass Limiters

In this paper the performance of a radiometric receiver preceded by a bandpass limiter is studied when the input is a fading binary frequency-shift-keyed signal. An expression for the probability of error versus signal-to-noise ratio, with receiver bandwidth as a parameter is derived. It is seen that limiting does not necessarily improve receiver performance, as is often thought.