A data-derived reference signal technique for adaptive arrays

Author

Ganz, Matthew W. ; Compton, R.T., Jr.

Author_Institution

MIT Lincoln Lab., Lexington, MA, USA

Volume

37

Issue

9

fYear

1989

fDate

9/1/1989 12:00:00 AM

Firstpage

975

Lastpage

983

Abstract

A new technique is presented for reference signal generation in adaptive arrays, and it is shown how it can be used in a binary FSK communication system. This method consists of encoding the message bit stream at the transmitter to convert it to a first-order Markov source with a transition probability of p>1/2. Then, in the receiver, each detected bit is used to predict the next bit, and the predicted bits are used to generate a reference signal. The performance of an FSK system based on this concept is analyzed, and an experimental system is described. This experimental system demonstrated that the reference signal generation concept is feasible and showed that this technique could be used to protect an FSK communication system from a CW interference signal

Keywords

antenna phased arrays; antenna theory; signal processing; CW interference signal; adaptive arrays; binary FSK communication system; data-derived reference signal; first-order Markov source; message bit stream; signal processing; transition probability; Adaptive arrays; Communication systems; Error probability; Frequency shift keying; Interference; Laboratories; Least squares approximation; Performance analysis; Protection; Signal generators;

fLanguage

English

Journal_Title

Communications, IEEE Transactions on

Publisher

ieee

ISSN

0090-6778

Type

jour

DOI

10.1109/26.35378

Filename

35378