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Article
Assessing partial ambiguity resolution and WZTD-constraint multi-frequency RTK in an urban environment using new BDS signals
BeiDou Navigation Satellite System (BDS) began to provide global services of positioning, navigation, and timing on July 31, 2020. The Real-time Kinematic (RTK) is one of the essential services for BDS’ precis...
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Chapter and Conference Paper
Research on Multi-sensor Integration Algorithm Based on the Multi-source Data of Smart-Phone
With the development of the Internet of Things (IoT), location-based service is becoming one of the essential requirements in daily-life. Currently, the GNSS (Global Navigation Satellite Systems) is mainly ado...
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Chapter and Conference Paper
Modeling and Assessment of BDS/GPS Triple-Frequency Precise Point Positioning
Beidou Navigation Satellite System (BDS), the first satellite navigation system with the capability of providing B1, B2 and B3 triple-frequency civil signals, can provide the services of positioning, navigatio...
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Article
Odometer, low-cost inertial sensors, and four-GNSS data to enhance PPP and attitude determination
To upgrade the positioning accuracy, re-initialization speed, and attitude determination performance of precise point positioning (PPP) in dynamic applications, we proposed a multi-sensor fusion system consis...
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Article
Railway irregularity measuring using Rauch–Tung–Striebel smoothed multi-sensors fusion system: quad-GNSS PPP, IMU, odometer, and track gauge
Precise track irregularity measuring is a pivotal technique to protect dynamic safety for railway transportation applications, especially those on high-speed railways. Current methods, such as the total statio...
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Article
Ionospheric and receiver DCB-constrained multi-GNSS single-frequency PPP integrated with MEMS inertial measurements
Single-frequency precise point positioning (SF-PPP) is a potential precise positioning technique due to the advantages of the high accuracy in positioning after convergence and the low cost in operation. Howev...
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Article
Tightly coupled integration of multi-GNSS PPP and MEMS inertial measurement unit data
Precise point positioning (PPP) using the Global Positioning System (GPS) is widely recognized as an efficient approach for providing precise positioning services. However, its accuracy and reliability could b...
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Article
Open AccessReal-time Kinematic Positioning of INS Tightly Aided Multi-GNSS Ionospheric Constrained PPP
Real-time Precise Point Positioning (PPP) technique is being widely applied for providing precise positioning services with the significant improvement on satellite precise products accuracy. With the rapid de...
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Chapter and Conference Paper
Analyzing the Impact of Satellite Clock-TGD Coupled Error on BDS Positioning Accuracy
BeiDou Navigation Satellite System (BDS) has got the ability of real-time navigation and high accuracy positioning services for the Asian-Pacific regions by the end of 2012 with the constellation of 5GEOs + 5I...
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Chapter and Conference Paper
Performance Analysis of BeiDou Satellite Navigation System (4IGSO + 3GEO) in Standard Positioning and Navigation
Currently, BeiDou satellite navigation system can be used for real-time positioning and navigation with 4IGSO + 3GEO satellites in the sky. This paper first briefly introduces some new progresses of BeiDou Sys...
