Pulse-diverse radar waveform design for accurate joint estimation of time delay and Doppler shift

Author

Chung, Wing-Kit ; Wong, Kainam Thomas

Author_Institution

Dept. of Electron. Eng., Chinese Univ. of Hong Kong, Shatin, China

Volume

5

fYear

2000

fDate

2000

Firstpage

3037

Abstract

A pulse train of diversely compressed pulses may produce better Doppler-delay resolution than a similar pulse train of identically compressed pulses by reducing the total ambiguity and being more flexible in distributing that reduced ambiguity. This work investigates the design of such a pulse-diverse waveform under a design criterion constraining the allowable sidelobe height in the composite ambiguity function. A genetic algorithm is used to design the pulse modulation parameters for frequency shift keying (FSK) pulse modulation and joint frequency-phase shift keying (FSK-PSK) pulse modulation. Simulation studies verify the superior Doppler-delay resolution and interference rejection capability of these pulse-diverse modulation schemes

Keywords

Doppler shift; delay estimation; frequency shift keying; genetic algorithms; interference suppression; pulse compression; pulse modulation; radar resolution; radar signal processing; signal synthesis; Doppler shift estimation; Doppler-delay resolution; FSK pulse modulation; FSK-PSK; composite ambiguity function; compressed pulses; frequency shift keying; frequency-phase shift keying pulse modulation; genetic algorithm; interference rejection; joint estimation; pulse modulation parameters; pulse train; pulse-diverse modulation schemes; pulse-diverse radar waveform design; sidelobe height constraint; simulation; time delay estimation; Algorithm design and analysis; Delay effects; Delay estimation; Doppler radar; Doppler shift; Frequency shift keying; Genetic algorithms; Phase shift keying; Pulse compression methods; Pulse modulation;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 2000. ICASSP '00. Proceedings. 2000 IEEE International Conference on

Conference_Location

Istanbul

ISSN

1520-6149

Print_ISBN

0-7803-6293-4

Type

conf

DOI

10.1109/ICASSP.2000.861175

Filename

861175