Next Article in Journal
A Fixed-Pattern Noise Correction Method Based on Gray Value Compensation for TDI CMOS Image Sensor
Next Article in Special Issue
Error Model and Compensation of Bell-Shaped Vibratory Gyro
Previous Article in Journal
Scalable Microfabrication Procedures for Adhesive-Integrated Flexible and Stretchable Electronic Sensors
Previous Article in Special Issue
Field Balancing and Harmonic Vibration Suppression in Rigid AMB-Rotor Systems with Rotor Imbalances and Sensor Runout
Article Menu

Export Article

Open AccessArticle
Sensors 2015, 15(9), 23477-23495; doi:10.3390/s150923477

An SINS/GNSS Ground Vehicle Gravimetry Test Based on SGA-WZ02

College of Mechatronics and Automation, National University of Defense Technology, Changsha 410073, China
*
Author to whom correspondence should be addressed.
Academic Editor: Gert F. Trommer
Received: 29 July 2015 / Revised: 10 September 2015 / Accepted: 10 September 2015 / Published: 16 September 2015
(This article belongs to the Special Issue Inertial Sensors and Systems)
View Full-Text   |   Download PDF [1431 KB, uploaded 16 September 2015]   |  

Abstract

In March 2015, a ground vehicle gravimetry test was implemented in eastern Changsha to assess the repeatability and accuracy of ground vehicle SINS/GNSS gravimeter—SGA-WZ02. The gravity system developed by NUDT consisted of a Strapdown Inertial Navigation System (SINS), a Global Navigation Satellite System (GNSS) remote station on test vehicle, a GNSS static master station on the ground, and a data logging subsystem. A south-north profile of 35 km along the highway in eastern Changsha was chosen and four repeated available measure lines were obtained. The average speed of a vehicle is 40 km/h. To assess the external ground gravity disturbances, precise ground gravity data was built by CG-5 precise gravimeter as the reference. Under relative smooth conditions, internal accuracy among repeated lines shows an average agreement at the level of 1.86 mGal for half wavelengths about 1.1 km, and 1.22 mGal for 1.7 km. The root-mean-square (RMS) of difference between calculated gravity data and reference data is about 2.27 mGal/1.1 km, and 1.74 mGal/1.7 km. Not all of the noises caused by vehicle itself and experiments environments were eliminated in the primary results. By means of selecting reasonable filters and improving the GNSS observation conditions, further developments in ground vehicle gravimetry are promising. View Full-Text
Keywords: SGA-WZ02; SINS/GNSS; ground vehicle gravimetry; FIR filter; internal and external accuracy SGA-WZ02; SINS/GNSS; ground vehicle gravimetry; FIR filter; internal and external accuracy
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. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Yu, R.; Cai, S.; Wu, M.; Cao, J.; Zhang, K. An SINS/GNSS Ground Vehicle Gravimetry Test Based on SGA-WZ02. Sensors 2015, 15, 23477-23495.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Sensors EISSN 1424-8220 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top