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ABSTRACT:In 10W cost train contr01 system,the train positioning can not rely on the t“lck integrity monitoring as a part of the system plays an important role of ensuring the train (Global Positioning System)is widely used for its good performance,high precision and low cost in the field of transportation,mapping, military and SO GPS to Train Integrity Monitoring is a new direction of
research.
Conventionally at least 4 visible satellites are required and bination of visible satellites iS chosen to obtain GPS the process of train Integrity monitoring, the availability and accuracy of systems Can be degraded due to blocking of the satellite signals at the end of the train which lead to plete condition(1ess than four satellites are visible)and the GPS solution is invalid using conventional method of train integrity monitoring aided by GPS position with three satellites in
plete condition is proposed in the key technology is the positioning algorithm only using three satellites in plete on the theory of coordinate transformation in topocentric terrestrial coordinate system,the coordinates of the end of train and observed satellites Can be projected onto plane of coordinate with the origin at the head of theory achieves a new mode of positioning with three
satellites on plane which is different from the conventional mode of positioning with
four satellites in more than 3 satellites are visible,positioning data of bination of satellites are processed by the method of residual error,the resuit which is the coordinate of the end is applied to calculate related position between
head and end in order to monitor train design and implement simulation software for the algorithm of train integrity monitoring.
Detailed mathematical positioning algorithms are deduced in this the end,
an experiment has been carried out to verif
ABSTRACT:In 10W cost train contr01 system,the train positioning can not rely on the t“lck integrity monitoring as a part of the system plays an important role of ensuring the train (Global Positioning System)is widely used for its good performance,high precision and low cost in the field of transportation,mapping, military and SO GPS to Train Integrity Monitoring is a new direction of
research.
Conventionally at least 4 visible satellites are required and bination of visible satellites iS chosen to obtain GPS the process of train Integrity monitoring, the availability and accuracy of systems Can be degraded due to blocking of the satellite signals at the end of the train which lead to plete condition(1ess than four satellites are visible)and the GPS solution is invalid using conventional method of train integrity monitoring aided by GPS position with three satellites in
plete condition is proposed in the key technology is the positioning algorithm only using three satellites in plete on the theory of coordinate transformation in topocentric terrestrial coordinate system,the coordinates of the end of train and observed satellites Can be projected onto plane of coordinate with the origin at the head of theory achieves a new mode of positioning with three
satellites on plane which is different from the conventional mode of positioning with
four satellites in more than 3 satellites are visible,positioning data of bination of satellites are processed by the method of residual error,the resuit which is the coordinate of the end is applied to calculate related position between
head and end in order to monitor train design and implement simulation software for the algorithm of train integrity monitoring.
Detailed mathematical positioning algorithms are deduced in this the end,
an experiment has been carried out to verif
gps辅助列车完整性检查的算法研究与实现-交通信息工程及控制专业毕业论文 来自淘豆网www.taodocs.com转载请标明出处.