Next Article in Journal
Simple and Fast Method for Fabrication of Endoscopic Implantable Sensor Arrays
Previous Article in Journal
A Secure and Efficient Handover Authentication Protocol for Wireless Networks
Sensors 2014, 14(7), 11395-11415; doi:10.3390/s140711395
Article

The Inertial Attitude Augmentation for Ambiguity Resolution in SF/SE-GNSS Attitude Determination

1,* , 1
, 1,* , 1
, 2
 and 1
Received: 6 May 2014; in revised form: 9 June 2014 / Accepted: 23 June 2014 / Published: 26 June 2014
(This article belongs to the Section Remote Sensors)
View Full-Text   |   Download PDF [1821 KB, uploaded 26 June 2014]   |   Browse Figures
Abstract: The Unaided Single Frequency/Single Epoch Global Navigation Satellite System (SF/SE GNSS) model is the most challenging scenario for ambiguity resolution in the GNSS attitude determination application. To improve the performance of SF/SE-GNSS ambiguity resolution without excessive cost, the Micro-Electro-Mechanical System Inertial Measurement Unit (MEMS-IMU) is a proper choice for the auxiliary sensor that carries out the inertial attitude augmentation. Firstly, based on the SF/SE-GNSS compass model, the Inertial Derived Baseline Vector (IDBV) is defined to connect the MEMS-IMU attitude measurement with the SF/SE-GNSS ambiguity search space, and the mechanism of inertial attitude augmentation is revealed from the perspective of geometry. Then, through the quantitative description of model strength by Ambiguity Dilution of Precision (ADOP), two ADOPs are specified for the unaided SF/SE-GNSS compass model and its inertial attitude augmentation counterparts, respectively, and a sufficient condition is proposed for augmenting the SF/SE-GNSS model strength with inertial attitude measurement. Finally, in the framework of an integer aperture estimator with fixed failure rate, the performance of SF/SE-GNSS ambiguity resolution with inertial attitude augmentation is analyzed when the model strength is varying from strong to weak. The simulation results show that, in the SF/SE-GNSS attitude determination application, MEMS-IMU can satisfy the requirements of ambiguity resolution with inertial attitude augmentation.
Keywords: GNSS attitude determination; SF/SE-GNSS compass; inertial attitude augmentation; IDBV; MEMS-IMU; ADOP; integer aperture estimation GNSS attitude determination; SF/SE-GNSS compass; inertial attitude augmentation; IDBV; MEMS-IMU; ADOP; integer aperture estimation
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Export to BibTeX |
EndNote


MDPI and ACS Style

Zhu, J.; Hu, X.; Zhang, J.; Li, T.; Wang, J.; Wu, M. The Inertial Attitude Augmentation for Ambiguity Resolution in SF/SE-GNSS Attitude Determination. Sensors 2014, 14, 11395-11415.

AMA Style

Zhu J, Hu X, Zhang J, Li T, Wang J, Wu M. The Inertial Attitude Augmentation for Ambiguity Resolution in SF/SE-GNSS Attitude Determination. Sensors. 2014; 14(7):11395-11415.

Chicago/Turabian Style

Zhu, Jiancheng; Hu, Xiaoping; Zhang, Jingyu; Li, Tao; Wang, Jinling; Wu, Meiping. 2014. "The Inertial Attitude Augmentation for Ambiguity Resolution in SF/SE-GNSS Attitude Determination." Sensors 14, no. 7: 11395-11415.


Sensors EISSN 1424-8220 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert