An analytic technique to separate cochannel FM signals

Author

Hamkins, Jon

Author_Institution

Jet Propulsion Lab., California Inst. of Technol., Pasadena, CA, USA

Volume

48

Issue

4

fYear

2000

fDate

4/1/2000 12:00:00 AM

Firstpage

543

Lastpage

546

Abstract

A new technique is presented to separate two cochannel frequency modulation signals. Two candidate solutions for the phases are analytically derived, and a sequence of phase solutions is chosen to match the expected power spectral density of each constituent signal. This is accomplished with a one-step linear predictor and a simple two-state Viterbi algorithm. Simulations on recorded radio frequency data indicate improved separation capability over other techniques such as the joint Viterbi algorithm and cross-coupled phase-locked loop

Keywords

frequency modulation; prediction theory; radio receivers; radio tracking; signal processing; spectral analysis; PLL; amplitude tracking; analytic technique; cochannel FM signals separation; cross-coupled phase-locked loop; frequency modulation; joint Viterbi algorithm; one-step linear predictor; phase solutions; power spectral density; radio frequency data; radio receiver; simulations; tracking algorithm; two-state Viterbi algorithm; Baseband; Frequency estimation; Frequency modulation; Interchannel interference; Phase locked loops; Radio frequency; Radio transmitters; Signal analysis; Source separation; Viterbi algorithm;

fLanguage

English

Journal_Title

Communications, IEEE Transactions on

Publisher

ieee

ISSN

0090-6778

Type

jour

DOI

10.1109/26.843120

Filename

843120