Title :
Distributed signal acquisition systems for sonar applications
Author :
Curtis, T.E. ; Webb, A.B.
Author_Institution :
Defence Res. Agency, Portland, UK
Abstract :
The authors demonstrate that compact low-cost low-power sonar signal acquisition systems with wide dynamic range have been produced routinely using noise-shaping convertors implemented in hybrid thick-film and surface mount technologies. They outline convertor topologies exploiting the available passive component matching. Digital circuitry has been fabricated using custom ASIC technology. High-performance multichannel systems can be assembled for various applications ranging from a few hundred Hz (narrowband towed array systems) to 100 kHz (mine hunting)
Keywords :
analogue-digital conversion; application specific integrated circuits; signal processing equipment; sonar; surface mount technology; thick film circuits; convertor topologies; custom ASIC technology; dynamic range; hybrid thick film technology; mine hunting; multichannel systems; narrowband towed array systems; noise-shaping convertors; passive component matching; sonar signal acquisition systems; surface mount technology;
Conference_Titel :
Oversampling Techniques and Sigma-Delta Modulation, IEE Colloquium on
Conference_Location :
London
