Next Article in Journal
LSPR Biosensing Approach for the Detection of Microtubule Nucleation
Previous Article in Journal
Organoleptic Analysis of Drinking Water Using an Electronic Tongue Based on Electrochemical Microsensors
Open AccessArticle

A Real-Time Detection Method for BDS Signal in Space Anomalies

College of Automation, Harbin Engineering University, Harbin 150001, China
*
Author to whom correspondence should be addressed.
Sensors 2019, 19(6), 1437; https://doi.org/10.3390/s19061437
Received: 18 February 2019 / Revised: 17 March 2019 / Accepted: 21 March 2019 / Published: 23 March 2019
(This article belongs to the Section Remote Sensors, Control, and Telemetry)
Signal In Space (SIS) anomalies in satellite navigation systems can degrade satellite-based navigation and positioning performance. The occurrence of SIS anomalies from the BeiDou navigation satellite System (BDS) may be more frequent than for the Global Positioning System (GPS). In order to guarantee the integrity of BDS users, detecting and excluding SIS anomalies is indispensable. The traditional method through the comparison between the final precision ephemeris and the broadcast ephemeris is limited by the issue of long latency of precision ephemeris release. Through the statistical characteristics analysis of Signal In Space User Range Error (SISURE), we propose a real-time Instantaneous SISURE (IURE) estimation method by using the Kalman filtering-based carrier-smoothed-code to detect and exclude BDS SIS anomalies, in which the threshold for BDS IURE anomaly detection are obtained from the integrity requirement. The experimental results based on 1 Hz data from ground observations show that the proposed method has an estimation accuracy of 1.1 m for BDS IURE. The test results show that the proposed method can effectively detect the SIS anomalies caused by either orbit faults or clock faults. View Full-Text
Keywords: BeiDou navigation satellite system (BDS); Signal In Space (SIS); anomaly detection; integrity BeiDou navigation satellite system (BDS); Signal In Space (SIS); anomaly detection; integrity
Show Figures

Figure 1

MDPI and ACS Style

Cheng, C.; Zhao, Y.; Li, L.; Zhao, L. A Real-Time Detection Method for BDS Signal in Space Anomalies. Sensors 2019, 19, 1437.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop