Title :
A bat-like sonar system consisting of hardware digital correlators
Author :
Nakahira, Kenji ; Kodama, T. ; Furnhashi, T. ; Maeda, H.
Author_Institution :
Dept. of Inf. Eng., Nagoya Univ., Japan
Abstract :
A prototype bat-like sonar system has been developed by implementing some of the bat techniques for interpreting sonar signals and mimicking their sensor configuration. The optimum method for estimating time-of-flight from the frequency-modulated echoes is correlation detection. In the field of photon correlation spectroscopy, a hardware digital correlator is employed to process the correlation function in real time. The paper presents an application of hardware digital correlators, implemented on a programmable logic device, as sonar signal processing systems for obstacle localization
Keywords :
collision avoidance; correlators; echo; photon correlation spectroscopy; programmable logic devices; real-time systems; sonar signal processing; zoology; bat techniques; bat-like sonar system; correlation detection; correlation function; frequency-modulated echoes; hardware digital correlators; obstacle localization; photon correlation spectroscopy; programmable logic device; real time system; sensor configuration; sonar signal processing systems; time-of-flight estimation; Correlators; Digital signal processing; Frequency estimation; Hardware; Optoelectronic and photonic sensors; Programmable logic devices; Prototypes; Sensor systems; Sonar applications; Spectroscopy;
Conference_Titel :
Systems, Man, and Cybernetics, 2000 IEEE International Conference on
Conference_Location :
Nashville, TN
Print_ISBN :
0-7803-6583-6
DOI :
10.1109/ICSMC.2000.884433
