A novel U-turn counting hangup detection algorithm for SDPSK modulation

Author

Yang, Jooyeol ; Lim, Hyoungsoo ; Cheun, Kyungwhoon

Author_Institution

Dept. of Electron. & Electr. Eng., Pohang Inst. of Sci. & Technol., South Korea

Volume

4

Issue

5

fYear

2000

fDate

5/1/2000 12:00:00 AM

Firstpage

173

Lastpage

175

Abstract

A new hangup detection algorithm for symmetric differential phase-shift keying (SDPSK) modulation is proposed. Hangup is detected by observing phase transition patterns in the received SDPSK signal trajectory. The average pull-in times with and without the proposed hangup detector are compared. Simulation results show that the proposed algorithm significantly reduces the average pull-in time when the initial timing error is near the unstable null. We also show that the proposed algorithm is very robust against carrier frequency offsets.

Keywords

differential phase shift keying; digital radio; packet radio networks; satellite communication; signal detection; SDPSK modulation; U-turn counting hangup detection algorithm; average pull-in times reduction; carrier frequency offsets; digital communication systems; hangup detector; initial timing error; phase transition patterns; received SDPSK signal trajectory; satellite packet radio network; simulation results; symmetric differential phase-shift keying; unstable null; AWGN; Additive white noise; Detection algorithms; Detectors; Differential phase shift keying; Frequency; Phase detection; Phase locked loops; Phase modulation; Timing;

fLanguage

English

Journal_Title

Communications Letters, IEEE

Publisher

ieee

ISSN

1089-7798

Type

jour

DOI

10.1109/4234.846502

Filename

846502