Title :
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
fDate :
6/19/1997 12:00:00 AM
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;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19970756
