ARCTAN Differentiated digital demodulator for FM/FSK digital receivers

Eissa, Haitham; Sharaf, K.; Ragaie, H.F.

doi:10.1109/mwscas.2002.1186832

Cited by 8 publications

(1 citation statement)

References 6 publications

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“…• Arctan-differentiated demodulator (ADM) [1] • Correlation demodulator [2] • Digital cross-differentiate multiply demodulator (DCDM) [3] • Short-time DFT (ST-DFT) demodulator [4] Another widely used digital demodulator is the zero-crossing demodulator. Unfortunately in [5] it has been shown that when the frequency offset is equal to the 6% of the data rate, the SNR degradation reaches 4.8 dB.…”

Section: Bfsk Demodulationmentioning

confidence: 99%

A FSK demodulator comparison for ultra-low power, low data-rate wireless links in ISM bands

Lopelli

Tang

Roermund

Proceedings of the 2005 European Conference on Circuit Theory and Design, 2005.

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Personal communications require wireless nodes, which can transmit and receive reliably data under huge power constraints. Higher level of integration and reduction of power consumption can be achieved using a zero-IF architecture together with a wideband BFSK modulation scheme. Unfortunately FSK techniques performances degrade sharply in the presence of frequency offset. In this paper a comparison between potentially low power BFSK architectures is presented based on high level models. In depth analysis of four potentially low power demodulators shows that the architecture, which can assure rejection of large static offset with minimum increment in hardware complexity is the ST-DFT based demodulator. This will allow great reduction in power consumption avoiding acquisition and tracking of the offset at the receiver side.

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