COMPARISON OF KALMAN AND LEAST-SQUARES FILTERS FOR LOCATING AUTONOMOUS VERY LOW-FREQUENCY ACOUSTIC SENSORS

被引：9

作者：

CULVER, RL ^{[1
]}

HODGKISS, WS ^{[1
]}

机构：

[1] UNIV CALIF SAN DIEGO,SCRIPPS INST OCEANOG,MARINE PHYS LAB,LA JOLLA,CA 92093

来源：

IEEE JOURNAL OF OCEANIC ENGINEERING | 1988年 / 13卷 / 04期

关键词：

Acoustic Transducers - Oceanography;

D O I：

10.1109/48.9241

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The Marine Physical Laboratory has designed, fabricated, and taken to sea self-contained, freely drifting acoustic sensors which can measure signal propagation and ambient ocean noise in the 1-20-Hz band for up to 25-hour periods. The deployment of several freely drifting floats forms an array of sensors whose outputs can be combined after the experiment with a beamformer. A Kalman filter and a least-squares estimator have been developed to estimate float positions from travel-time measurements. Computer simulation is used to compare filter performance under several deployment scenarios. Results show that the Kalman filter performs better than the least-squares filter when the floats are subjected to small-magnitude accelerations between measurements. Neither filter was sensitive to relatively major changes in deployment geometry as long as the sound-speed profile is known exactly.

引用

页码：282 / 290

页数：9