CPFSK Spectrum in a Heterodyne Receiver with Delay Demodulation

Schiess, M.

doi:10.1515/joc.1994.15.3.112

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1996

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“…However, narrowband CPFSK with a modulation index of around 1 offers a compact spectrum, which makes it very suitable for optical FDM systems. At the receiving end a narrowband CPFSK signal can be demodulated using a delay and multiply detector [1][2][3][4].…”

Section: Introductionmentioning

confidence: 99%

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Frequency Spectra in an Optical CPFSK Heterodyne Delay Demodulating Receiver using Manchester Coding

Put¹,

Boom²,

Etten³

1996

Journal of Optical Communications

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In this paper exact analytical expressions of the power spectra of a Manchester coded CPFSK signal with arbitrary modulation index are derived. For the signal after delay & multiply demodulation exact analytical expressions of the power spectra with modulation index 1 are derived, and computer simulations are used to calculate these spectra for various modulation indices. Moreover, the analytically derived power spectra are verified by computer simulations. The simulation results correspond extremely well with the analytically calculated spectra. These signal spectra are important for the design and construction of the pre and post detection filters in the receiver.

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Section: Introductionmentioning

confidence: 99%

“…(4) τρί + a(t) + a(t -(9) Brought to you by | University of Glasgow Library Authenticated Download Date | 6/25/15 3:53 PM…”

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