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Hardware implementation of optimal CALLUM transmitter

Research output: Contribution to journalArticle

Original languageEnglish
Article number19
Pages1816 - 1817
JournalElectronics Letters
Journal publication dateSep 1998
Journal issue19


The combined analogue locked-loop universal modulator (CALLUM) is a power-efficient, linear transmitter. The optimal CALLUM1 system requires the calculation of nonlinear functions of system variables by a DSP. Such a system has been constructed and results in response to π/4-DQPSK modulation are given

Additional information

Rose publication type: Journal article

Research areas

  • circuit feedback, differential phase shift keying, radio transmitters

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