EDN

Modulation basics, part 2: Phase modulation

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EDN

Quadrature Phase Shift Key (QPSK)

Quadrature phase shift key is a one of the digital modulation schemes that use Phase-shift keying. One popular varient of QPSK is offset QPSK or OQPSK. What is the difference between these two ...
TechRepublic

Analysis on QPSK Modulation Technique for Wideband Code Division Multiple Access

This paper is the study of the QPSK (Quadrature Phase Shift keying) modulation technique using AWGN (Additive White Gaussian Noise) and Multipath Rayleigh fading channel. In QPSK scheme the authors ...
Hackaday

phase shift keying

BPSK31 is an extremely popular mode for amateur radio operators; it’s efficient and has a narrow bandwidth and can be implemented with a computer sound card or an Arduino. Just like it says on the tin ...
Radio World

Modern Modulation Techniques

Modern society is definitely more mobile than it was several decades ago. Accompanying the increased mobility is a corresponding craving for greater quantities of information. The increased demand has ...
TechRepublic

Diversity Techniques using BPSK and QPSK Modulation in MIMO System under Fading Environment

In this paper, performance analysis for different combining technique for receiver diversity in a MIMO system is presented. A general framework for diversity combining techniques in cooperative ...
RFID Journal

Phase shift keying

A method of communicating data by shifting the waveform’s period. Instead of being at the zero axis at a specific point in time, the wave might be shifted forward so that it is at its peak. The reader ...