Abstract
In this paper, error probability analyses are performed for a binary frequency shift-keying (BFSK) system employing L hop/bit frequency-hopping (FH) spread-spectrum waveforms transmitted over a partial-band multiple tone jamming channel. The receiver's strategy is to apply the output of each channel detector, prior to combining, to a soft limiter (clipper). The aim of this paper is to compare the effects of 1) worst case partial band Gaussian noise jamming with 2) worst case partial band multiple tone jamming. Numerical results of the error rates are graphically displayed as a function of signal-to-jamming power ratio, with L and signal-to-noise ratio as parameters. It is shown that multiple tone jamming yields a higher error rate, but the receiver still offer a diversity gain, as it does for the Gaussian noise case.
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