Title :
SAW dispersive delay lines in radar signal processing
Author :
Kawalec, Adam M.
Author_Institution :
Inst. of Tech. Phys., Mil. Univ. of Technol., Warsaw, Poland
Abstract :
SAW dispersive delay lines are used for the generation and compression of chirp signals in modern radar systems. The influence of the passband-time duration (BT) product of the chirp signal on the sidelobe level of the compressed signal is presented. By using the best method for designing a periodical dispersive transducer two filters, middleband and wideband, can be used. Theoretical and experimental results of dispersive filters are presented. These techniques are used to design 10 μs and 16 μs dispersive delay lines, with up to a 100% passband, on quartz and lithium niobate substrates
Keywords :
filters; quartz; radar equipment; radar signal processing; surface acoustic wave delay lines; surface acoustic wave filters; LiNbO3; SAW dispersive delay lines; chirp signal compression; dispersive filters; experimental results; lithium niobate substrates; passband-time duration product; periodical dispersive transducer; quartz substrates; radar signal processing; radar systems; sidelobe level; Chirp; Delay lines; Design methodology; Dispersion; Filters; Radar signal processing; Signal generators; Surface acoustic waves; Transducers; Wideband;
Conference_Titel :
Radar Conference, 1995., Record of the IEEE 1995 International
Conference_Location :
Alexandria, VA
Print_ISBN :
0-7803-2121-9
DOI :
10.1109/RADAR.1995.522639
