DocumentCode
2532702
Title
Supercritical stability in a sonar receiver circuit
Author
Tapson, Jonathan
Author_Institution
Dept. of Electr. Eng., Cape Town Univ., Rondebosch
fYear
2006
fDate
21-24 May 2006
Lastpage
854
Abstract
We describe a simple circuit, inspired by the human auditory system, which allows controllable supercritical stability in a sonar receiver. The receiver is held on the threshold of self-oscillation when signal levels are low. The effect is to improve the sensitivity and SNR for small and subthreshold signals, at the cost of some bandwidth, while providing unchanged bandwidth and sensitivity at higher signal levels
Keywords
acoustic receivers; circuit stability; network topology; sonar; human auditory system; self-oscillation threshold; sonar receiver circuit; subthreshold signals; supercritical stability; Auditory system; Bandwidth; Bifurcation; Circuit stability; Control systems; Feedback circuits; Humans; RLC circuits; Sonar; Transducers;
fLanguage
English
Publisher
ieee
Conference_Titel
Circuits and Systems, 2006. ISCAS 2006. Proceedings. 2006 IEEE International Symposium on
Conference_Location
Island of Kos
Print_ISBN
0-7803-9389-9
Type
conf
DOI
10.1109/ISCAS.2006.1692719
Filename
1692719
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