A Multipath Processing Technology Based on Multiparameter-Combined Observation in GNSS

Abstract

In the Global Navigation Satellite System (GNSS), the multipath error affected by many aspects is the main error source that affects satellite navigation, and it is difficult to establish a much more accurate model to analyze it. Based on the ground multipath reflection model, it firstly deeply studies the influence of GNSS satellite orbit parameters on multipath fading frequency and establishes a multipath signal model related to satellite orbit parameters. Secondly, the influence of carrier phase cycle slip, receiver clock adjustment, and GNSS satellite orbit on multiparameter- (MP-) combined observations is analyzed in detail based on the measured data. Finally, aiming at the common phenomenon of code-carrier divergence in the Beidou system, the elevation-based pseudorange correction model and a sidereal filtering are built to correct the MP errors; experiments with measured data show that there is a fluctuation range reduction of 35.7% after sidereal filtering when the receiver reaches a steady state.

Architecture, Technologies, and Applications of Location-Based Services

“…The RSSIs from mobile/ cellular networks, wireless networks, wireless sensor networks, and heterogeneous network were collected and analyzed for indoor positioning [34][35][36][37]. Furthermore, the signals from satellites networks were collected and analyzed for outdoor positioning [38]. Detailed information of each article could be found in [34][35][36][37][38].…”

“…Furthermore, the signals from satellites networks were collected and analyzed for outdoor positioning [38]. Detailed information of each article could be found in [34][35][36][37][38].…”

An Improved Adaptive Simulated Annealing Particle Swarm Optimization Algorithm for ARAIM Availability

“…Te satellite navigation system is closely related to trafc situational awareness and safety supervision of intelligent vehicle navigation [1,2]. And satellite navigation is also widely used in the aviation feld [3,4]. Te integrity monitoring algorithm provides some assurance of location information reliability.…”

Observation System Optimization of Offshore Acoustic Exploration for Estimating Submarine Geological Structures via Directivity Analysis

“…Among them, acoustic exploration has been widely used [17]. Research on the detection of marine geo-disasters has been the core of marine geologists [18]. Many researchers have done a lot of work for them, such as OOI (the Ocean Observatories Initiative) program and the DONET (Development of Dense Ocean-oor Network System for Earthquake and Tsunami) systems in Japan, as well as the ESONET (the European Sea Observatory Network) system and the COSTA (Continental Slope Stability) program [19][20][21].…”