Title :
SAW device implementation of the weighted stepped chirp code signal
Author :
Carter, Scott E. ; Malocha, Donald C.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Central Florida, Orlando, FL, USA
fDate :
6/20/1905 12:00:00 AM
Abstract :
This paper discusses a new surface acoustic wave (SAW) device implementation of a weighted stepped chirp code signal for use in direct sequence spread spectrum communications systems. The theoretical performance of the code signal is evaluated including the following figures of merit: compression ratio, peak sidelobe level, integrated sidelobe level, processing gain, and probability of error. The design considerations for the SAW device implementation of the code signal are discussed including the effects of intersymbol interference. Experimental results are presented for 8 different SAW devices examining the effects of code length (9 or 13 chips), weighting (uniform, cosine-squared, and Hamming), and sampling on the performance of the code signal
Keywords :
intersymbol interference; pseudonoise codes; radio equipment; signal sampling; spread spectrum communication; surface acoustic wave signal processing; SAW device implementation; code length; compression ratio; direct sequence spread spectrum communications; error probability; integrated sidelobe level; intersymbol interference; peak sidelobe level; performance; processing gain; sampling; surface acoustic wave; weighted stepped chirp code signal; Acoustic waves; Chirp; Communication systems; Intersymbol interference; Performance gain; Signal design; Signal processing; Spread spectrum communication; Surface acoustic wave devices; Surface acoustic waves;
Conference_Titel :
Ultrasonics Symposium, 1998. Proceedings., 1998 IEEE
Print_ISBN :
0-7803-4095-7
DOI :
10.1109/ULTSYM.1998.762166
