An Integrity Monitoring Algorithm Design Based on Code Double Differences for Rail GNSS Augmentation Network

2018 ◽  
Author(s):  
P. Salvatori ◽  
C. Stallo ◽  
A. Coluccia ◽  
A. Neri ◽  
F. Rispoli
Keyword(s):  
Algorithm Design ◽  
Integrity Monitoring ◽  
Double Differences ◽  
Monitoring Algorithm

scholarly journals Analyses of the sensitivity of multi-constellation advanced receiver autonomous integrity monitoring vertical protection level availability to error parameters and a failure model over China

2018 ◽  
Vol 10 (6) ◽  
pp. 168781401877619 ◽  
Author(s):  
Xueen Zheng ◽  
Ye Liu ◽  
Guochao Fan ◽  
Jing Zhao ◽  
Chengdong Xu
Keyword(s):  
Satellite System ◽  
Protection Level ◽  
Integrity Monitoring ◽  
System Service ◽  
Service Stations ◽  
Receiver Autonomous Integrity Monitoring ◽  
Global Navigation Satellite ◽  
Range Error ◽  
Monitoring Algorithm ◽  
Advanced Receiver

The availability of advanced receiver autonomous integrity monitoring for vertical guidance down to altitudes of 200 ft (LPV-200) is discussed using real satellite orbit/ephemeris data collected at eight international global navigation satellite system service stations across China. Analyses were conducted for the availability of multi-constellation advanced receiver autonomous integrity monitoring and multi-fault advanced receiver autonomous integrity monitoring, and the sensitivity of availability in response to changes in error model parameters (i.e. user range accuracy, user range error, Bias-Nom and Bias-Max) was used to compute the vertical protection level. The results demonstrated that advanced receiver autonomous integrity monitoring availability based on multiple constellations met the requirements of LPV-200 despite multiple-fault detections that reduced the availability of the advanced receiver autonomous integrity monitoring algorithm; the advanced receiver autonomous integrity monitoring availability thresholds of the user range error and Bias-Nom used for accuracy were more relevant to geographic information than the user range accuracy and Bias-Max used for integrity at the eight international global navigation satellite system service stations. Finally, the possibility of using the advanced receiver autonomous integrity monitoring algorithm for a Category III navigation standard is discussed using two sets of predicted errors, revealing that the algorithm could be used in 79% of China.

Analysis and Simulation of an Autonomous Integrity Monitoring Algorithm for Dual-Mode Navigation Receiver

2013 ◽  
Vol 765-767 ◽  
pp. 2097-2100
Author(s):  
Jun Sun ◽  
Yong Gang Yang
Keyword(s):  
Fault Detection ◽  
Single Mode ◽  
Single System ◽  
Dual Mode ◽  
Integrity Monitoring ◽  
Detection Rates ◽  
Monitoring Algorithm

A dual-mode receiver combination of GPS and Compass (BD) is introduced on the assumption when only one of the satellites had a failure, how to implement a weighting RAIM monitoring. And the GPS and BD in single mode and the GPS/BD dual-mode were simulated to produce the Fault Detection Rates and RAIM integrity availability. It is demonstrated that the dual-mode RAIM algorithm is superior to any kind of single-system RAIM algorithms.

Short-term warning and integrity monitoring algorithm for coal mine shaft safety

2014 ◽  
Vol 24 (11) ◽  
pp. 3666-3673
Author(s):  
Jian WANG ◽  
Xing-long TAN ◽  
Hou-zeng HAN ◽  
T.B. AFENI
Keyword(s):  
Coal Mine ◽  
Short Term ◽  
Mine Shaft ◽  
Integrity Monitoring ◽  
Monitoring Algorithm

Integrity monitoring for undifferenced and uncombined PPP under the local environment

2022 ◽  
Author(s):  
jie zhang ◽  
Lin Zhao ◽  
Fuxin Yang ◽  
Liang Li ◽  
Xiaosong Liu ◽  
...  
Keyword(s):  
Precise Point Positioning ◽  
Local Environment ◽  
Dual Frequency ◽  
Absolute Position ◽  
Protection Level ◽  
Integrity Monitoring ◽  
Kinematic Data ◽  
Misleading Information ◽  
Safety Critical ◽  
Monitoring Algorithm

Abstract Integrity monitoring of precise point positioning (PPP) can provide tightly guaranteed absolute position error bounds for safety-critical applications. However, complex local environment makes PPP integrity monitoring much more challenging, such as urban canyons. Significant prone multipaths and low observation redundancy are main difficulties to the accuracy and the reliability of PPP. Therefore, we proposed a solution separation-based integrity monitoring algorithm, which is based on a single and dual frequency-mixed undifferenced and uncombined PPP model considering compensation for the multipath error distortion by Gaussian overbounding. Both the static and the kinematic data are utilized to test the proposed algorithm. The results show that the proposed algorithm can produce adequate protection level in horizontal and vertical directions. Furthermore, the proposed algorithm can obtain smoother protection level and positioning error under the dynamic local environment, and effectively suppress the misleading information.

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