Title :
A phase error tracking algorithm for demodulating QPSK-spread IS-95 signal
Author :
Lee, Hyo-Jin ; Lee, Cheol-Seong ; Jeon, Dae-In
Author_Institution :
LG Inf. & Commun., Kyoungki, South Korea
Abstract :
In this paper, using a linear characteristic of tan-1() function with in-phase and quadrature-phase samples, we propose a phase error tracking and correcting algorithm for demodulating QPSK-spread IS-95 signal. We derive the proposed algorithm and simulate the performance which shows that the proposed algorithm corrects the phase error between the transmitted and the received signals
Keywords :
Gaussian channels; cellular radio; demodulation; digital radio; error correction; pseudonoise codes; quadrature phase shift keying; spread spectrum communication; AWGN channel; DS-SS spread spectrum; PN sequence; QPSK-spread IS-95 signal; demodulation; digital cellular radio; direct sequence spread spectrum; in-phase samples; performance simulation; phase error correction; phase error tracking algorithm; quadrature-phase samples; Error correction; Frequency estimation; Gaussian noise; Multiaccess communication; Narrowband; Phase estimation; Quadrature phase shift keying; Signal generators; Timing; Transmitters;
Conference_Titel :
Networks, 1995. Theme: Electrotechnology 2000: Communications and Networks. [in conjunction with the] International Conference on Information Engineering., Proceedings of IEEE Singapore International
Print_ISBN :
0-7803-2579-6
DOI :
10.1109/SICON.1995.526329
