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1.发明申请SYSTEMS AND METHODS FOR SYNTHESIZING GPS MEASUREMENTS TO IMPROVE GPS LOCATION AVAILABILITY 有权用于合成GPS测量以改善GPS定位可用性的系统和方法公开(公告)号：US20120188121A1
公开(公告)日：2012-07-26
申请号：US13439075
申请日：2012-04-04
IPC分类号： G01S19/48
摘要： There are situations where GPS signals are received from less than four satellites. In order to improve the GPS location availability, disclosed here are systems and methods for synthesizing GPS measurements, which, together with fewer than four available real GPS signals, can be used to calculate a position fix. In particular, GPS range measurements for lost satellites, which are satellites that were previously tracked but are now not tracked, are synthesized to improve GPS signal availability. The synthesized measurements are used along with real measurements to enable accurate position fix even when GPS satellite availability is poor. Different synthesized measurement generation schemes, depending on whether an INS/DR aiding system is available, are further described herein.
摘要翻译： 存在从不到四颗卫星接收GPS信号的情况。 为了改善GPS位置可用性，这里公开了用于合成GPS测量的系统和方法，其与少于四个可用的真实GPS信号一起可用于计算定位。 特别地，合成用于丢失的卫星（其是先前被跟踪但现在未被跟踪的卫星）的GPS距离测量以改善GPS信号的可用性。 合成的测量结果与实际测量一起使用，即使在GPS卫星可用性差的情况下也能够进行精确的定位。 本文进一步描述了不同的合成测量生成方案，这取决于INS / DR辅助系统是否可用。
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2.发明申请Systems and Methods for Synthesizing GPS Measurements to Improve GPS Location Availability 有权综合GPS测量的系统和方法，以改善GPS位置的可用性公开(公告)号：US20100328146A1
公开(公告)日：2010-12-30
申请号：US11934832
申请日：2007-11-05
IPC分类号： G01S19/42
摘要： There are situations where GPS signals are received from less than four satellites. In order to improve the GPS location availability, disclosed here are systems and methods for synthesizing GPS measurements, which, together with fewer than four available real GPS signals, can be used to calculate a position fix. In particular, GPS range measurements for lost satellites, which are satellites that were previously tracked but are now not tracked, are synthesized to improve GPS signal availability. The synthesized measurements are used along with real measurements to enable accurate position fix even when GPS satellite availability is poor. Different synthesized measurement generation schemes, depending on whether an INS/DR aiding system is available, are further described herein.
摘要翻译： 存在从不到四颗卫星接收GPS信号的情况。 为了改善GPS位置可用性，这里公开了用于合成GPS测量的系统和方法，其与少于四个可用的真实GPS信号一起可用于计算定位。 特别地，合成用于丢失的卫星（其是先前被跟踪但现在未被跟踪的卫星）的GPS距离测量以改善GPS信号的可用性。 合成的测量结果与实际测量一起使用，即使在GPS卫星可用性差的情况下也能够进行精确的定位。 本文进一步描述了不同的合成测量生成方案，这取决于INS / DR辅助系统是否可用。
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3.发明授权Systems and methods for synthesizing GPS measurements to improve GPS location availability 有权GPS测量的系统和方法，以提高GPS位置的可用性公开(公告)号：US08378887B2
公开(公告)日：2013-02-19
申请号：US13439075
申请日：2012-04-04
摘要： There are situations where GPS signals are received from less than four satellites. In order to improve the GPS location availability, disclosed here are systems and methods for synthesizing GPS measurements, which, together with fewer than four available real GPS signals, can be used to calculate a position fix. In particular, GPS range measurements for lost satellites, which are satellites that were previously tracked but are now not tracked, are synthesized to improve GPS signal availability. The synthesized measurements are used along with real measurements to enable accurate position fix even when GPS satellite availability is poor. Different synthesized measurement generation schemes, depending on whether an INS/DR aiding system is available, are further described herein.
摘要翻译： 存在从不到四颗卫星接收GPS信号的情况。 为了改善GPS位置可用性，这里公开了用于合成GPS测量的系统和方法，其与少于四个可用的真实GPS信号一起可用于计算定位。 特别地，合成用于丢失的卫星（其是先前被跟踪但现在未被跟踪的卫星）的GPS距离测量以改善GPS信号的可用性。 合成的测量结果与实际测量一起使用，即使在GPS卫星可用性差的情况下也能够进行精确的定位。 本文进一步描述了不同的合成测量生成方案，这取决于INS / DR辅助系统是否可用。
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4.发明授权Systems and methods for synthesizing GPS measurements to improve GPS location availability 有权GPS测量的系统和方法，以提高GPS位置的可用性公开(公告)号：US08159393B2
公开(公告)日：2012-04-17
申请号：US11934832
申请日：2007-11-05
IPC分类号： G01S19/38
摘要： There are situations where GPS signals are received from less than four satellites. In order to improve the GPS location availability, disclosed here are systems and methods for synthesizing GPS measurements, which, together with fewer than four available real GPS signals, can be used to calculate a position fix. In particular, GPS range measurements for lost satellites, which are satellites that were previously tracked but are now not tracked, are synthesized to improve GPS signal availability. The synthesized measurements are used along with real measurements to enable accurate position fix even when GPS satellite availability is poor. Different synthesized measurement generation schemes, depending on whether an INS/DR aiding system is available, are further described herein.
摘要翻译： 存在从不到四颗卫星接收GPS信号的情况。 为了改善GPS位置可用性，这里公开了用于合成GPS测量的系统和方法，其与少于四个可用的真实GPS信号一起可用于计算定位。 特别地，合成用于丢失的卫星（其是先前被跟踪但现在未被跟踪的卫星）的GPS距离测量以改善GPS信号的可用性。 合成的测量结果与实际测量一起使用，即使在GPS卫星可用性差的情况下也能够进行精确的定位。 本文进一步描述了不同的合成测量生成方案，这取决于INS / DR辅助系统是否可用。
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