Jianguo Jack Wang

Learn More
It is well known that Kalman filtering is an optimal real-time data fusion method for GPS/INS integration. However, it has some limitations in terms of stability, adaptability and observability. A Kalman filter can perform optimally only when its dynamic model is correctly defined and the noise statistics for the measurement and process are completely(More)
This paper introduces a new 3D landmark extraction method using the range and intensity images captured by a single range camera. Speeded up robust features (SURF) detection and matching is used to extract and match features from the intensity images. The range image information is used to transfer the selected 2D features into 3D points. The range(More)
Pseudolites, ground-based GPS signal transmitters, can significantly enhance the GPS satellite geometry or can even be an independent positioning system. However, as pseudolites are very close to the receivers, error effects are different from the traditional GPS and should be considered and modeled in a different way. Tropospheric delay is one of the(More)
Systems from the UNSW. His current research interest is precision kinematic positioning and navigation system integration. research is focused on developing an integrated positioning and geo-referencing platform for mobile mapping and navigation applications. Fellow of the International Association (IAG) of Geodesy. Jinling is a member of the Editorial(More)
Road assets' condition has a critical impact on road safety and efficiency. It is a big challenge to accurately and efficiently monitor and manage road assets. This paper proposes a mobile surveying system that is cost efficient and robust to acquire and manage road assets information in highly dynamic environments like highways and urban streets, where the(More)
GPS has been widely used as a geo-referencing tool in aerial surveying. However, the accuracy and availability of GPS positioning cannot meet the stringent requirements of large-scale photogrammetry. G round-based pseudolites can strengthen measurement geometry for GPS based airborne geo-referencing systems. As a result, positioning accuracy and reliability(More)
This paper introduces a new algorithm for dead reckoning navigation named Constant Velocity Update (CUPT), which is an extension of popular Zero Velocity Update (ZUPT). With a low-cost IMU (Inertial Measurement Unit) attached to a user's shoe, the proposed algorithm can efficiently reduce IMU errors by detecting not only the stance phases during walking,(More)
This paper discusses algorithmic concepts, design and testing of a pedestrian dead reckoning (PDR) navigation system based on a low-cost inertial measurement unit (IMU) attached to a user's shoe. The algorithm uses the technique known as “Zero Velocity Update” (ZUPT) and Kalman Filter consists of 24 error states to reduce IMU errors. We(More)