The performance of an FHMA-MFSK (frequency-hopped multiple accessmultilevel frequency shift keying) system considered as a possiblecandidate for the European Space Station's communication system isexamined. Performance evaluation is based on analyses and simulations,the latter requiring selection of particular system parameters. Thedriving specification of the envisaged system is the high dynamic range,resulting in considerably large interference-to-desired-signal powerratios. Some form of clipping at the receiver side is mandatory, butperformance improvement can be achieved by quantizing the spectrumanalyzer output signals to more than single-bit quantization.Furthermore the overall system performance can be considerably improvedby applying tone shaping/windowing on the transmitted tones. Care mustbe taken to provide sufficient tone separation for the envisagedshaping/windowing scheme
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