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公开(公告)号：US20170176191A1
公开(公告)日：2017-06-22
申请号：US14976992
申请日：2015-12-21
发明人： Tao Li , Jacques Georgy , Da Wang , Sheng Mao , Hussein Sahli
CPC分类号： G01C21/34 , G01C21/206 , G01C21/30 , G01S19/01
摘要： The navigation solution of a portable device may be enhanced using map information. Sensor data for the portable device may be used to derive navigation solutions at a plurality of epochs over a first period of time. Position information for the device may be estimated at a time subsequent to the first period of time using the navigation solutions. Map information for an area encompassing a current location of the portable device may also be obtained. Multiple hypotheses regarding possible positions of the portable device may be generated using the estimated position information and the map information. By managing and processing the hypotheses, estimated position information for at least one epoch during the first period of time may be updated. An enhanced navigation solution for the at least one epoch may be provided using the updated estimated position information.
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公开(公告)号：US10018474B2
公开(公告)日：2018-07-10
申请号：US14976992
申请日：2015-12-21
发明人： Tao Li , Jacques Georgy , Da Wang , Sheng Mao , Hussein Sahli
CPC分类号： G01C21/34 , G01C21/206 , G01C21/30 , G01S19/01
摘要： The navigation solution of a portable device may be enhanced using map information. Sensor data for the portable device may be used to derive navigation solutions at a plurality of epochs over a first period of time. Position information for the device may be estimated at a time subsequent to the first period of time using the navigation solutions. Map information for an area encompassing a current location of the portable device may also be obtained. Multiple hypotheses regarding possible positions of the portable device may be generated using the estimated position information and the map information. By managing and processing the hypotheses, estimated position information for at least one epoch during the first period of time may be updated. An enhanced navigation solution for the at least one epoch may be provided using the updated estimated position information.
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