Direct BPSK demodulation by polarization rotation in the presence of channel distortion

S. Ahmed*, M. Amin, V. Fusco, T. Ratnarajah

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

In this paper, we study the bit-error-rate (BER) performance of a novel method of signal detection whereby the signal is modulated by polarization rotation. The method combines two oppositely sensed circularly polarized signals to generate a linearly polarized wave with a spatial tilt angle determined by the phase difference between the two circularly polarized signals. The transmitted linearly polarized wave passes through a flat faded channel where it can be further tilted through an angle θch before it is detected by a crossed dipole at the receiver. We also develop an algorithm to estimate the tilt angle distortion to the linearly polarized signal introduced by the channel. Simulation results show BER performance of the proposed scheme for both cases when the distortion in the tilt angle by the channel is (i) accounted for, and, (ii) not accounted for at the receiver.

Original languageEnglish (US)
Title of host publication2007 Loughborough Antennas and Propagation Conference, LAPC 2007 Conference Proceedings
Pages69-72
Number of pages4
DOIs
StatePublished - 2007
Externally publishedYes
EventLAPC 2007: 3rd Loughborough Antennas and Propagation Conference - Loughborough, United Kingdom
Duration: Apr 2 2007Apr 3 2007

Other

OtherLAPC 2007: 3rd Loughborough Antennas and Propagation Conference
CountryUnited Kingdom
CityLoughborough
Period04/2/0704/3/07

Keywords

  • Channel estimation
  • Circular polarization
  • Polarization rotation

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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