Title :
Programmable ultra-wideband coded signal generator
Author :
Wei Wang ; Qunying Zhang ; Guangyou Fang
Author_Institution :
Inst. of Electron., Beijing, China
Abstract :
A novel programmable ultra-wideband coded signal generator based on digital integrated circuits is designed. The bipolar impulse can be generated by a transformer without any analogue circuit. A pseudorandom code is used to modulate the monocycle impulse by the time modulation (TM) scheme. The width of a monocycle pulse is variable along with the frequency of the input clock and delay time. The minimum width is as small as 0.625 ns and the amplitude is 0.64 V peak-to-peak.
Keywords :
digital integrated circuits; modulation coding; pulse generators; radar signal processing; random codes; random number generation; signal generators; ultra wideband radar; TM; bipolar impulse generation; delay time; digital integrated circuits; monocycle impulse modulation; monocycle pulse; programmable ultra wideband coded signal generator; pseudorandom code; time modulation scheme; transformer;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2012.1379
