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2005

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Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/8751

BPSK to ASK signal conversion using injection-locked oscillators-Part I: theory

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Abstract

This paper presents a new method and circuit for the conversion of binary phase-shift keying (BPSK) signals into amplitude shift keying signals. The basic principles of the conversion method are the superharmonic injection and locking of oscillator circuits, and interference phenomena. The first one is used to synchronize the oscillators, while the second is used to generate an amplitude interference pattern that reproduces the original phase modulation. When combined with an envelope detector, the proposed converter circuit allows the coherent demodulation of BPSK signals without need of any explicit carrier recovery system. The time response of the converter circuit to phase changes of the input signal, as well as the conversion limits, are discussed in detail.

Related resource

http://dx.doi.org/10.1109/TMTT.2005.859875

Subject

Modulació (Electrònica)

Subject (English)

Modulation (Electronics), Modulació per desplaçament de fase, Phase shift keying

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Articles publicats en revistes (Enginyeria Electrònica i Biomèdica)

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LÓPEZ VILLEGAS, José María and SIEIRO CÓRDOBA, Javier José. BPSK to ASK signal conversion using injection-locked oscillators-Part I: theory. IEEE Transactions on Microwave Theory and Techniques. 2005. Vol. 53, num. 12, pags. 3757-3766. ISSN 0018-9480. [consulted: 11 of October of 2026]. Available at: https://hdl.handle.net/2445/8751

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