Title :
Some unique properties and applications of perfect squares minimum phase CAZAC sequences
Author :
Röhrs, U.H. ; Linde, Lp
Author_Institution :
Dept. of Electr. & Electron. Eng., Pretoria Univ., South Africa
fDate :
9/11/1992 12:00:00 AM
Abstract :
Properties described include the Constant Amplitude (CA) and Zero AutoCorrelation (ZAC) features, the ideal unfiltered and filtered Fourier transforms, the complex time domain, phase trajectory and perfect (unfiltered as well as filtered) periodic autocorrelation function properties. Additional characteristics presented are the remarkable resemblance between the CAZAC sequences and CWFM chirp signals, as well as the relationship between their instantaneous frequency and Fourier transform representations. Examples of the generation of typical PS-MP CAZAC sequences are given. It is demonstrated that these sequences are periodically, self-invertible and therefore constitute the optimum sequences for maximum-likelihood channel estimation. The paper includes simulation results with reference to potential applications
Keywords :
Fourier transforms; codes; correlation theory; filtering and prediction theory; maximum likelihood estimation; time-frequency analysis; Fourier transforms; complex time domain; constant amplitude; instantaneous frequency; maximum-likelihood channel estimation; minimum phase codes; perfect squares minimum phase CAZAC sequences; periodic autocorrelation function; zero autocorrelation; Autocorrelation; Binary sequences; Channel estimation; Chirp; Fourier transforms; Gold; Maximum likelihood estimation; Radar applications; Radar tracking; Target tracking;
Conference_Titel :
Communications and Signal Processing, 1992. COMSIG '92., Proceedings of the 1992 South African Symposium on
Conference_Location :
Cape Town
Print_ISBN :
0-7803-0807-7
DOI :
10.1109/COMSIG.1992.274294
