Degradation of DPSK bit error rates due to jamming

Bit error rate results obtained from Monte Carlo simulations and also from a substantially faster quasi-analytic approximation are presented. Analysis and results are given for a noise jammer appearing intermittently in the IF bandwidth. A description of the mathematical models for the tone jamming problem is presented, along with observations on simulation pitfalls. Tone jammer results are given for numerous frequency offsets from the signal carrier and relative jammer power levels with four demodulation metrics. Analysis and results are given for the case of multiple tones in the signal band. From the curves, it is clear that four tones in the baseband have the most detrimental effect, followed closely by the two-tone case. When the jammer appears randomly spaced with respect to the signal carrier, as in the case of a frequency-hopped system, the effect is essentially that of a noise jammer. The noise jammer curves show that degradation depends on jammer power and how often the jammer intrudes into the signal baseband