The Experts below are selected from a list of 7737 Experts worldwide ranked by ideXlab platform
Daniela Rus - One of the best experts on this subject based on the ideXlab platform.
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a gps Pseudorange based cooperative vehicular distance measurement technique
Vehicular Technology Conference, 2012Co-Authors: Daiqin Yang, Fang Zhao, Kai Liu, Hock Beng Lim, Emilio Frazzoli, Daniela RusAbstract:Accurate vehicular localization is important for various cooperative vehicle safety (CVS) applications such as collision avoidance, turning assistant, etc. In this paper, we propose a cooperative vehicular distance measurement technique based on the sharing of GPS Pseudorange measurements and a weighted least squares method. The classic double difference Pseudorange solution, which was originally designed for high-end survey level GPS systems, is adapted to low-end navigation level GPS receivers for its wide availability in ground vehicles. The Carrier to Noise Ratio (CNR) of raw Pseudorange measurements are taken into account for noise mitigation. We present a Dedicated Short Range Communications (DSRC) based mechanism to implement the exchange of Pseudorange information among neighboring vehicles. As demonstrated in field tests, our proposed technique increases the accuracy of the distance measurement significantly compared with the distance obtained from the GPS fixes.
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VTC Spring - A GPS Pseudorange Based Cooperative Vehicular Distance Measurement Technique
2012 IEEE 75th Vehicular Technology Conference (VTC Spring), 2012Co-Authors: Daiqin Yang, Fang Zhao, Kai Liu, Hock Beng Lim, Emilio Frazzoli, Daniela RusAbstract:Accurate vehicular localization is important for various cooperative vehicle safety (CVS) applications such as collision avoidance, turning assistant, etc. In this paper, we propose a cooperative vehicular distance measurement technique based on the sharing of GPS Pseudorange measurements and a weighted least squares method. The classic double difference Pseudorange solution, which was originally designed for high-end survey level GPS systems, is adapted to low-end navigation level GPS receivers for its wide availability in ground vehicles. The Carrier to Noise Ratio (CNR) of raw Pseudorange measurements are taken into account for noise mitigation. We present a Dedicated Short Range Communications (DSRC) based mechanism to implement the exchange of Pseudorange information among neighboring vehicles. As demonstrated in field tests, our proposed technique increases the accuracy of the distance measurement significantly compared with the distance obtained from the GPS fixes.
Daiqin Yang - One of the best experts on this subject based on the ideXlab platform.
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a gps Pseudorange based cooperative vehicular distance measurement technique
Vehicular Technology Conference, 2012Co-Authors: Daiqin Yang, Fang Zhao, Kai Liu, Hock Beng Lim, Emilio Frazzoli, Daniela RusAbstract:Accurate vehicular localization is important for various cooperative vehicle safety (CVS) applications such as collision avoidance, turning assistant, etc. In this paper, we propose a cooperative vehicular distance measurement technique based on the sharing of GPS Pseudorange measurements and a weighted least squares method. The classic double difference Pseudorange solution, which was originally designed for high-end survey level GPS systems, is adapted to low-end navigation level GPS receivers for its wide availability in ground vehicles. The Carrier to Noise Ratio (CNR) of raw Pseudorange measurements are taken into account for noise mitigation. We present a Dedicated Short Range Communications (DSRC) based mechanism to implement the exchange of Pseudorange information among neighboring vehicles. As demonstrated in field tests, our proposed technique increases the accuracy of the distance measurement significantly compared with the distance obtained from the GPS fixes.
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VTC Spring - A GPS Pseudorange Based Cooperative Vehicular Distance Measurement Technique
2012 IEEE 75th Vehicular Technology Conference (VTC Spring), 2012Co-Authors: Daiqin Yang, Fang Zhao, Kai Liu, Hock Beng Lim, Emilio Frazzoli, Daniela RusAbstract:Accurate vehicular localization is important for various cooperative vehicle safety (CVS) applications such as collision avoidance, turning assistant, etc. In this paper, we propose a cooperative vehicular distance measurement technique based on the sharing of GPS Pseudorange measurements and a weighted least squares method. The classic double difference Pseudorange solution, which was originally designed for high-end survey level GPS systems, is adapted to low-end navigation level GPS receivers for its wide availability in ground vehicles. The Carrier to Noise Ratio (CNR) of raw Pseudorange measurements are taken into account for noise mitigation. We present a Dedicated Short Range Communications (DSRC) based mechanism to implement the exchange of Pseudorange information among neighboring vehicles. As demonstrated in field tests, our proposed technique increases the accuracy of the distance measurement significantly compared with the distance obtained from the GPS fixes.
Tao Geng - One of the best experts on this subject based on the ideXlab platform.
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GNSS Receiver-Related Pseudorange Biases: Characteristics and Effects on Wide-Lane Ambiguity Resolution
Remote Sensing, 2021Co-Authors: Lingyue Cheng, Wei Wang, Jingnan Liu, Tao GengAbstract:Satellite chip shape distortions lead to signal tracking errors in Pseudorange measurements, which are related to the receiver manufacturers, called receiver-related Pseudorange biases. Such biases will lead to adverse effects for differential code bias (DCB) and satellite clock estimation, single point positioning (SPP) and precise point positioning (PPP) applications with Pseudoranges. In order to assess the characteristics of receiver-related Pseudorange biases for global positioning system (GPS), Galileo navigation satellite system (Galileo) and BeiDou navigation satellite system (BDS), seven short baselines from the Multi-GNSS experiment (MGEX) network are tested. The results demonstrate that there are significant inconsistences of Pseudorange biases according to satellites, frequencies, receiver and antenna types. For the baselines using the same receivers of TRIMBLE, Pseudorange biases are within ±0.2 ns with the same antennas, while they increase to ±0.6 ns with the different antennas. As for baselines with mixed receiver types, Pseudorange biases can reach up to 2.5 ns. Among GPS/Galileo/BDS, Galileo shows the smallest Pseudorange biases, and the obvious inconsistences of Pseudorange biases are observed between BDS-2 and BDS-3, and Galileo in-orbit validation (IOV) satellites and full operational configuration (FOC) satellites. In order to validate receiver-related Pseudorange biases, we carry out relative positioning experiments using short baselines. The results show that the RMS values of position errors are reduced 12.6% and 11.4% in horizontal and vertical components with biases correction. The impacts of receiver-related Pseudorange biases on wide-lane (WL) ambiguity are also discussed. The results indicate that the percentage of the fractional parts within ±0.1 cycles have an obvious increase with the Pseudorange biases correction, and RMS values of the fractional parts are reduced 28.9% and 67.6% for GPS and BDS, respectively.
Fang Zhao - One of the best experts on this subject based on the ideXlab platform.
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a gps Pseudorange based cooperative vehicular distance measurement technique
Vehicular Technology Conference, 2012Co-Authors: Daiqin Yang, Fang Zhao, Kai Liu, Hock Beng Lim, Emilio Frazzoli, Daniela RusAbstract:Accurate vehicular localization is important for various cooperative vehicle safety (CVS) applications such as collision avoidance, turning assistant, etc. In this paper, we propose a cooperative vehicular distance measurement technique based on the sharing of GPS Pseudorange measurements and a weighted least squares method. The classic double difference Pseudorange solution, which was originally designed for high-end survey level GPS systems, is adapted to low-end navigation level GPS receivers for its wide availability in ground vehicles. The Carrier to Noise Ratio (CNR) of raw Pseudorange measurements are taken into account for noise mitigation. We present a Dedicated Short Range Communications (DSRC) based mechanism to implement the exchange of Pseudorange information among neighboring vehicles. As demonstrated in field tests, our proposed technique increases the accuracy of the distance measurement significantly compared with the distance obtained from the GPS fixes.
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VTC Spring - A GPS Pseudorange Based Cooperative Vehicular Distance Measurement Technique
2012 IEEE 75th Vehicular Technology Conference (VTC Spring), 2012Co-Authors: Daiqin Yang, Fang Zhao, Kai Liu, Hock Beng Lim, Emilio Frazzoli, Daniela RusAbstract:Accurate vehicular localization is important for various cooperative vehicle safety (CVS) applications such as collision avoidance, turning assistant, etc. In this paper, we propose a cooperative vehicular distance measurement technique based on the sharing of GPS Pseudorange measurements and a weighted least squares method. The classic double difference Pseudorange solution, which was originally designed for high-end survey level GPS systems, is adapted to low-end navigation level GPS receivers for its wide availability in ground vehicles. The Carrier to Noise Ratio (CNR) of raw Pseudorange measurements are taken into account for noise mitigation. We present a Dedicated Short Range Communications (DSRC) based mechanism to implement the exchange of Pseudorange information among neighboring vehicles. As demonstrated in field tests, our proposed technique increases the accuracy of the distance measurement significantly compared with the distance obtained from the GPS fixes.
Emilio Frazzoli - One of the best experts on this subject based on the ideXlab platform.
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a gps Pseudorange based cooperative vehicular distance measurement technique
Vehicular Technology Conference, 2012Co-Authors: Daiqin Yang, Fang Zhao, Kai Liu, Hock Beng Lim, Emilio Frazzoli, Daniela RusAbstract:Accurate vehicular localization is important for various cooperative vehicle safety (CVS) applications such as collision avoidance, turning assistant, etc. In this paper, we propose a cooperative vehicular distance measurement technique based on the sharing of GPS Pseudorange measurements and a weighted least squares method. The classic double difference Pseudorange solution, which was originally designed for high-end survey level GPS systems, is adapted to low-end navigation level GPS receivers for its wide availability in ground vehicles. The Carrier to Noise Ratio (CNR) of raw Pseudorange measurements are taken into account for noise mitigation. We present a Dedicated Short Range Communications (DSRC) based mechanism to implement the exchange of Pseudorange information among neighboring vehicles. As demonstrated in field tests, our proposed technique increases the accuracy of the distance measurement significantly compared with the distance obtained from the GPS fixes.
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VTC Spring - A GPS Pseudorange Based Cooperative Vehicular Distance Measurement Technique
2012 IEEE 75th Vehicular Technology Conference (VTC Spring), 2012Co-Authors: Daiqin Yang, Fang Zhao, Kai Liu, Hock Beng Lim, Emilio Frazzoli, Daniela RusAbstract:Accurate vehicular localization is important for various cooperative vehicle safety (CVS) applications such as collision avoidance, turning assistant, etc. In this paper, we propose a cooperative vehicular distance measurement technique based on the sharing of GPS Pseudorange measurements and a weighted least squares method. The classic double difference Pseudorange solution, which was originally designed for high-end survey level GPS systems, is adapted to low-end navigation level GPS receivers for its wide availability in ground vehicles. The Carrier to Noise Ratio (CNR) of raw Pseudorange measurements are taken into account for noise mitigation. We present a Dedicated Short Range Communications (DSRC) based mechanism to implement the exchange of Pseudorange information among neighboring vehicles. As demonstrated in field tests, our proposed technique increases the accuracy of the distance measurement significantly compared with the distance obtained from the GPS fixes.
