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Zero-crossing based demodulation of minimum shift keying

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Zero-Crossing Based Demodulation of Minimum Shift.pdf (225Kb)
Date
2003
Author
Kalkan, Mine
Kerestecioǧlu, Feza
Abstract
Minimum shift keying (MSK) modulation has features such as constant envelope compact spectrum and good error performance which are all desirable in many digital applications including mobile radio. Numerous receiver structures to demodulate MSK have been suggested such as correlation receivers differential detectors and frequency discriminators MSK is a form of biphase keying and can be detected by a zero-crossing based phase demodulator which gives near optimum performance. In this paper the bit error performance of a zero-crossing based coherent MSK demodulator is theoretically investigated and a closed-form expression for the bit error rate is derived. The results indicate that the demodulator performs within 0.8-1 dB of the theoratical optimum for MSK. Towards the goal of deriving probability of bit error it is also shown that under additive white Gaussian noise (AWGN) zero-crossing locations of MSK signals are Gaussian distributed except at very low signal-to-noise ratios.

Source

Turkish Journal of Electrical Engineering and Computer Sciences

Issue

2

Volume

11

Pages

75-94

URI

https://hdl.handle.net/20.500.12469/1710
https://pdfs.semanticscholar.org/b46e/a834ab4436b096753f5f540a2fc5a4647d24.pdf

Collections

  • Araştırma Çıktıları / Scopus [1565]
  • Bilgisayar Mühendisliği / Computer Engineering [188]

Keywords

Minimum shift keying modulation
Non-parametric testing
Receiver performance
Zero-crossing properties

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