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| Content Provider | IET Digital Library |
|---|---|
| Author | Sun, Dajun Ding, Jie Zheng, Cuie Huang, Weimin |
| Abstract | For an ultra-short baseline (USBL) positioning system, the angular misalignment between the acoustic array and attitude sensor will introduce overwhelming positioning errors. In order to eliminate this type of errors, a method to calibrate angular misalignment is proposed here. In the method, individual angular misalignment is estimated through the decomposition of the related rotating matrix and overall angular misalignment is calculated using an iterative estimator. Not only does the method determine the angular misalignment more accurately but also it can be applicable to any arbitrary trajectory even the pre-determined trajectory is distorted by the environmental forces (such as winds, currents). The estimation error of the method is analysed through a simulation with different types of trajectories. Its performance is also evaluated in a field experiment. The method is compared with an existing method using both simulated and field data. The simulation and field experiment results indicate that the method has better performance and does improve the positioning accuracy of a USBL system. |
| Starting Page | 456 |
| Ending Page | 463 |
| Page Count | 8 |
| ISSN | 17518784 |
| Volume Number | 13 |
| e-ISSN | 17518792 |
| Issue Number | Issue 3, Mar (2019) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-rsn/13/3 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-rsn.2018.5371 |
| Journal | IET Radar, Sonar & Navigation |
| Publisher Date | 2018-11-05 |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | Acoustic Array Angular Misalignment Calibration Method Attitude Measurement Attitude Sensor Calibration Global Positioning System Individual Angular Misalignment Interpolation And Function Approximation Iterative Estimator Iterative Method Linear Algebra Matrix Decomposition Measurement Standard And Calibration Numerical Analysis Position Control Positioning Error Radio Navigation And Direction Finding Rotating Matrix Sonic And Ultrasonic Equipment Ultra-short Baseline Positioning System USBL System |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electrical and Electronic Engineering |
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