A new detection technique for digital radio communication systems applied spectrum phase interpolation

Author

Kitayoshi, Hitoshi

Author_Institution

Advantest Sendai Labs. Ltd., Sendai, Japan

fYear

1994

fDate

1-5 May 1994

Firstpage

1417

Abstract

In cellular communications systems using digital radio services, especially those that use low-Earth orbiting satellites (LEOs), phase-modulated signals such as QPSK are received with relatively fast Doppler shifts. We developed a coherent detector which uses a new algorithm called the spectrum phase interpolation method (SPIM) to compensate for the Doppler shifts. SPIM will aid TDMA propagation analyses of QAM and QPSK modulated waves and orthogonally vector spread spectrum modulated waves

Keywords

Doppler shift; cellular radio; digital radio; interpolation; land mobile radio; mobile satellite communication; pseudonoise codes; quadrature amplitude modulation; quadrature phase shift keying; radiowave propagation; signal detection; spread spectrum communication; time division multiple access; LEO; QAM; QPSK; TDMA propagation; algorithm; cellular communications systems; coherent detector; digital radio communication systems; digital radio services; fast Doppler shifts; low-Earth orbiting satellites; modulated waves; orthogonally vector spread spectrum; phase-modulated signals; spectrum phase interpolation method; Artificial satellites; Detectors; Digital communication; Doppler shift; Interpolation; Lasers and Electro-Optics Society; Phase detection; Quadrature phase shift keying; Satellite broadcasting; Time division multiple access;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, 1994. ICC '94, SUPERCOMM/ICC '94, Conference Record, 'Serving Humanity Through Communications.' IEEE International Conference on

Conference_Location

New Orleans, LA

Print_ISBN

0-7803-1825-0

Type

conf

DOI

10.1109/ICC.1994.368873

Filename

368873