Constellation shape as a robust signature for digital modulation recognition

Author

Mobasseri, Bijan G.

Author_Institution

Dept. of Electr. & Comput. Eng., Villanova Univ., PA, USA

Volume

1

fYear

1999

fDate

6/21/1905 12:00:00 AM

Firstpage

442

Abstract

This work reports on a new digital modulation recognition algorithm in an AWGN channel and in the presence of carrier recovery errors. The proposed classification technique uses the signal constellation shape as a stable modulation signature. The recovered constellations are modeled by binomial nonhomogenous spatial random fields and are used in an ML classifier. We experimentally show that shape as a global signature exhibits considerable stability in high noise, weakly synchronous environments. Experimental results are shown for various modulation standards including V.29, V.29 fallback, 8-PSK and 16-QAM

Keywords

AWGN channels; noise; phase shift keying; quadrature amplitude modulation; random processes; signal classification; signal representation; telecommunication standards; 16-QAM; 8-PSK; AWGN channel; ML classifier; V.29; V.29 fallback; binomial nonhomogenous spatial random fields; carrier recovery errors; digital modulation recognition algorithm; experimental results; global signature; high noise; maximum likelihood classifier; modulation standards; recovered constellations; robust signature; signal constellation shape; stable modulation signature; vector shape representation; weakly synchronous environments; AWGN channels; Additive white noise; Constellation diagram; Digital modulation; Gaussian noise; Noise shaping; Robustness; Shape; Stability; Working environment noise;

fLanguage

English

Publisher

ieee

Conference_Titel

Military Communications Conference Proceedings, 1999. MILCOM 1999. IEEE

Conference_Location

Atlantic City, NJ

Print_ISBN

0-7803-5538-5

Type

conf

DOI

10.1109/MILCOM.1999.822722

Filename

822722