Performance Improvement of Multiple Array 3D Sonic Digitizer System via Calibration
| Document type: | Conference Papers |
|---|---|
| Peer reviewed: | Yes |
| Author(s): | Nedelko Grbic, Xiao-Jiao Tao, Ingvar Claesson |
| Title: | Performance Improvement of Multiple Array 3D Sonic Digitizer System via Calibration |
| Conference name: | RVK 99 (RadioVetenskap och kommunikation) |
| Year: | 1999 |
| ISBN: | 91-630-8156-3 |
| Publisher: | Högskolan i Karlskrona/Ronneby |
| City: | Karlskrona |
| Organization: | Blekinge Institute of Technology |
| Department: | Department of Telecommunications and Signal Processing (Institutionen för telekommunikation och signalbehandling) Department of Telecommunications and Signal Processing S-372 25 Ronneby +46 455 38 50 00 |
| Authors e-mail: | ngr@bth.se, xjtao@agere.com, icl@bth.se |
| Language: | English |
| Abstract: | Multiple array 3D sonic digitizer system is a product made for measuring the geometric structure of an arbitrary object in three dimension. This paper gives a theoretical performance evaluation of the system. The Cramer-Rao Lower Bound of the parameter estimates of a linear segment is derived. In addition, the distortion effect caused by the time-delay bias, including rescaling, rotation and bending of the original object, is clarified. A simple method using a line segment is proposed to calibrate the bias term arised in the different parts of the system. Finally a simulation gives a numerical demonstration of the previous analysis and performance improvement of the suggested method. |
| Subject: | Signal Processing\Detection and Classification Signal Processing\General |
| Keywords: | Sonic array, 3D Source localization, Acoustic |
