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The performance of linear modulation through a frequency hopped channel

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Original languageEnglish
Title of host publicationIEE Coll. on Spread Spectrum Techniques for Radio Communication Systems
Publisher or commissioning bodyInstitution of Electrical Engineers (IEE)
Pages9/1 - 9/6
StatePublished - Jun 1992
EventColloquium on Spread Spectrum Techniques for Radio Communication Systems - London, United Kingdom


ConferenceColloquium on Spread Spectrum Techniques for Radio Communication Systems
CountryUnited Kingdom
Period1/06/92 → …


This paper considers the implementation of a frequency hopping modem utilising a highly bandwidth efficient linear modulation scheme. The bandwidth of the narrowband message is minimised, and differential operation provides resilience to fading and the nonlinearity of the FH channel. The performance of a single user system has been derived through simulation, with a novel approach for modelling of the FH channel. Instead of simulating a frequency hopper, transmitting through a wideband channel and de-hopping the FH signal at the receiver, the system uses a narrowband `hopping' channel model, which alters its characteristics to reflect those of the FH propagation environment. To validate this model, measurements have been undertaken into the nature of propagation through the channel. The results are presented in terms of the fading undergone by a hopped signal, and the statistics of that signal at the receiver

Additional information

Rose publication type: Conference contribution Sponsorship: The authors would like to thank UK SERC and GPT, Beeston for their financial support of D.J. Purle, the Centre for Communications Research for providing simulation facilities, and their colleagues for many useful discussions related to this work

Research areas

  • amplitude modulation, bandwidth compression, fading, frequency agility


Colloquium on Spread Spectrum Techniques for Radio Communication Systems

Duration1 Jun 1992 → …
CountryUnited Kingdom

Event: Conference

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