Design of multilevel sequences based on mismatched chirp and FH multilevel sequences for radar and sonar applications

Author

Simic, I.S. ; Zejak, A.J. ; Dukic, M.L.

Author_Institution

Inst. of Microwave Techniques & Electron., Novi Beograd, Serbia

Volume

33

Issue

13

fYear

1997

fDate

6/19/1997 12:00:00 AM

Firstpage

1174

Lastpage

1176

Abstract

A method for designing multilevel sequence, based on chirp and frequency hopping (FH) waveforms is presented. The main feature of the synthesised transmitter-receiver pair of sequences is the very low sidelobe level. The receiver sequences are considered as mismatched compression filter coefficients. The DIRLS (Doppler optimised iterative reweighted least square) algorithm is applied to the iterative optimisation of the receiver mismatched coefficients, as well as to the multilevel transmitter sequence

Keywords

chirp modulation; frequency hop communication; iterative methods; least squares approximations; radar signal processing; sequences; sonar signal processing; spread spectrum radar; DIRLS; Doppler optimised iterative reweighted least square; FH multilevel sequences; frequency hopping; mismatched chirp; mismatched compression filter coefficients; multilevel sequences; multilevel transmitter sequence; radar; receiver mismatched coefficients; sidelobe level; sonar; transmitter-receiver pair;

fLanguage

English

Journal_Title

Electronics Letters

Publisher

iet

ISSN

0013-5194

Type

jour

DOI

10.1049/el:19970756

Filename

601014