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公开(公告)号：US20140375494A1
公开(公告)日：2014-12-25
申请号：US14309985
申请日：2014-06-20
Applicant: Peter FLEMING , Geraint FFOULKES-JONES , Gerald WHITWORTH
Inventor： Peter FLEMING , Geraint FFOULKES-JONES , Gerald WHITWORTH
CPC classification number: G01S19/428 , G01S5/0273 , G01S19/22 , G01S19/26 , G01S19/28 , G01S19/46 , G01S19/47 , G01S19/52
Abstract: A positioning system operates by first determining that a user is pedestrian, and then estimating a speed of the user. Having tracked a first signal from one radio transmitter whose position is known, the system attempts to detect additional signals from the one transmitter, in a search space such that the first signal and the or each additional signal are consistent with the estimated speed of the user and with one or more of the signals having been reflected off a reflector in the vicinity of the user. One or more detected additional signals from the one transmitter are then tracked, and candidate measurements, derived from the first signal and the one or more detected additional signals, are provided for use when estimating the position and/or velocity of the user.
Abstract translation: 定位系统通过首先确定用户是行人，然后估计用户的速度来操作。 已经从已知位置的一个无线电发射机追踪到第一信号，系统试图在搜索空间中检测来自一个发射机的附加信号，使得第一信号和每个附加信号与用户的估计速度一致 并且一个或多个信号已经从用户附近的反射器反射出来。 然后跟踪来自一个发射机的一个或多个检测到的附加信号，并且提供从第一信号和一个或多个检测到的附加信号导出的候选测量值，以便在估计用户的位置和/或速度时使用。
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公开(公告)号：US20140375495A1
公开(公告)日：2014-12-25
申请号：US14309950
申请日：2014-06-20
Applicant: Peter FLEMING , Geraint FFOULKES-JONES , Qiang ZHANG
Inventor： Peter FLEMING , Geraint FFOULKES-JONES , Qiang ZHANG
CPC classification number: G01S19/22 , G01S19/14 , G01S19/426 , G01S19/49 , G01S19/52
Abstract: A positioning system obtains an estimate of the heading of a body whose position or velocity is to be estimated, for example from a heading sensor such as a gyroscope or accelerometer. Respective signals are tracked from a plurality of transmitters, and a respective Doppler measurement is obtained from each of said tracked signals. For each of the tracked signals, a speed of the body is estimated using the estimate of the heading of the body and the respective Doppler measurement. It is then determined whether the estimated speed of the body is consistent with the signal having been received along a direct path from the transmitter. Signals that provide information about the speed of the body that is inconsistent with the signal having been received along a direct path from the transmitter are then disregarded when estimating the position or velocity of the body.
Abstract translation: 定位系统获得例如从诸如陀螺仪或加速度计的航向传感器估计其位置或速度的身体的航向的估计。 从多个发射机跟踪相应的信号，并且从每个所述被跟踪的信号获得相应的多普勒测量。 对于每个跟踪的信号，使用身体的航向的估计和相应的多普勒测量来估计身体的速度。 然后确定身体的估计速度是否与沿着从发射机的直接路径接收的信号一致。 当估计身体的位置或速度时，提供关于与沿着从发射机的直接路径接收的信号不一致的身体速度的信息的信号被忽略。
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公开(公告)号：US20180003494A1
公开(公告)日：2018-01-04
申请号：US15609981
申请日：2017-05-31
Applicant: Peter FLEMING
Inventor： Peter FLEMING
Abstract: Altitude determining circuitry for use in a User Equipment (UE) of a wireless communication network is provided. The circuitry comprises a receiver to receive at least one pressure parameter representative of a plurality of indoors pressure measurements from a respective plurality of indoors pressure measurement units located inside a building at different altitudes. The altitude determining circuitry also has processing circuitry to receive from a pressure sensor in the User Equipment a local pressure measurement at the UE and the processor determines an indoors altitude of the UE using the at least one pressure parameter and the UE local pressure. An integrated circuit for a Global Navigate Satellite System comprising the altitude determining circuitry and an indoors pressure measurement unit having a sensor for making a pressure measurement and a transmitter for transmitting the pressure measurement to the UE or to a further indoors pressure measurement unit are also provided.
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