关于在跟踪阶段应用信号质量指标以辅助全球导航卫星系统（GNSS）接收机的接收机自主完好性监测（RAIM）系统的研究

On the Use of a Signal Quality Index Applying at Tracking Stage Level to Assist the RAIM System of a GNSS Receiver.

作者信息

Berardo Mattia, Lo Presti Letizia

机构信息

Politecnico di Torino-Corso Duca degli Abruzzi 24, Torino 10129, Italy.

出版信息

Sensors (Basel). 2016 Jul 2;16(7):1029. doi: 10.3390/s16071029.

DOI:10.3390/s16071029

PMID:27384564

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC4970078/

Abstract

In this work, a novel signal processing method is proposed to assist the Receiver Autonomous Integrity Monitoring (RAIM) module used in a receiver of Global Navigation Satellite Systems (GNSS) to improve the integrity of the estimated position. The proposed technique represents an evolution of the Multipath Distance Detector (MPDD), thanks to the introduction of a Signal Quality Index (SQI), which is both a metric able to evaluate the goodness of the signal, and a parameter used to improve the performance of the RAIM modules. Simulation results show the effectiveness of the proposed method.

摘要

在这项工作中，提出了一种新颖的信号处理方法，以辅助全球导航卫星系统（GNSS）接收机中使用的接收机自主完好性监测（RAIM）模块，提高估计位置的完好性。由于引入了信号质量指数（SQI），所提出的技术是多径距离检测器（MPDD）的一种改进。信号质量指数既是一种能够评估信号质量优劣的度量，也是一个用于提高RAIM模块性能的参数。仿真结果表明了该方法的有效性。