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1. 发明申请

WO2011016821A2 PRACTICAL METHOD FOR UPGRADING EXISTING GNSS USER EQUIPMENT WITH TIGHTLY INTEGRATED NAV-COM CAPABILITY 审中-公开
标题翻译：用于升级现有的全球导航卫星系统用户设备的实际方法，具有轻松集成的资产净值能力
公开(公告)号：WO2011016821A2
公开(公告)日：2011-02-10
申请号：PCT/US2010/001274
申请日：2010-04-30
申请人： COHERENT NAVIGATION, INC.
发明人： LEDVINA, Brent, M. , COHEN, Clark E. , HUMPHREYS, Todd E. , LEDVINA, Brent M. , BENCZE, William J. , PSIAKI, Mark L. , GALUSHA, Bryan T.
IPC分类号： G01S19/02
CPC分类号： G01S19/46 , G01S19/09 , G01S19/36 , G01S19/43
摘要： A practical method for adding significant new high-performance, tightly integrated Nav-Com capability to any Global Navigation Satellite System (GNSS) user equipment, such as GPS receivers, requires no hardware modifications to the existing user equipment. In one example, the iGPS concept is applied to a Defense Advanced GPS Receiver (DAGR) and combines Low Earth Orbiting (LEO) satellites, such as Iridium, with GPS or other GNSS systems to significantly improve the accuracy, integrity, and availability of Position, Navigation, andTiming (PNT)- in some cases by three orders of magnitude, to enable high precision GNSS carrier phase observable to be more readily exploited to improve PNT availability-even under interference conditions or occluded environments, and to enable new communication enhancements made available by the synthesis of precisely coupled navigation and communication modes. To achieve time synchronization stability to the required sub-20 ps level between the existing DAGR and a plug-in iGPS enhancement module, a special-purpose wideband reference signal is generated by the iGPS module and coupled to the DAGR via the existing antenna port, so that no hardware modification of the DAGR is required.
摘要翻译：对任何全球导航卫星系统（GNSS）用户设备（如GPS接收机）增加重要的新的高性能，紧密集成的Nav-Com功能的实际方法不需要对现有用户设备进行硬件修改。在一个示例中，iGPS概念被应用于国防高级GPS接收机（DAGR），并将诸如铱星的低地球轨道（LEO）卫星与GPS或其他GNSS系统相结合，以显着提高Position的准确性，完整性和可用性，导航和计时（PNT） - 在某些情况下为三个数量级，以使即使在干扰条件或闭塞环境下也可以更容易地利用高精度GNSS载波相位来提高PNT可用性，并实现新的通信增强可以通过合成精确耦合的导航和通信模式。为了在现有的DAGR和插件式iGPS增强模块之间达到所需的20ps级别的时间同步稳定性，由iGPS模块生成专用宽带参考信号，并通过现有天线端口耦合到DAGR，因此不需要硬件修改DAGR。

2. 发明申请

WO2015153335A1 SYSTEM AND METHOD FOR CONTINUOUS CARRIER WAVE RECONSTRUCTION 审中-公开
标题翻译：连续波载波重构的系统与方法
公开(公告)号：WO2015153335A1
公开(公告)日：2015-10-08
申请号：PCT/US2015/022969
申请日：2015-03-27
申请人： COHERENT NAVIGATION, INC.
发明人： MILLER, Isaac T. , BENCZE, William J. , BRUMLEY, Robert W. , LEDVINA, Brent M. , PSIAKI, Mark L. , HOLMES, Thomas J. , COHEN, Clark E.
IPC分类号： G01S19/29
CPC分类号： G01S19/29
摘要： A system and method of continuous carrier wave reconstruction includes a radio navigation receiver that includes one or more processors, memory coupled to the one or more processors, and an input for receiving a signal from a transmitter. The signal has a phase. The one or more processors are configured to obtain phase lock on the received signal, extract first phase information from the received signal, detect a loss in phase lock on the received signal, and extrapolate second phase information while phase lock is lost using a model of the phase. In some embodiments, the one or more processors are further configured to reconstruct the carrier signal based on the first and second phase information. In some embodiments, the one or more processors are further configured to scale the first and second phase information from a first nominal frequency of the received signal to a different second nominal frequency.
摘要翻译：连续载波重构的系统和方法包括：无线电导航接收机，其包括一个或多个处理器，耦合到所述一个或多个处理器的存储器，以及用于从发射机接收信号的输入端。信号有一个相位。一个或多个处理器被配置为获得接收信号上的相位锁定，从接收到的信号中提取第一相位信息，检测接收信号的相位锁定中的丢失，并且在相位锁定丢失时推断第二相位信息，使用模型的阶段。在一些实施例中，一个或多个处理器还被配置为基于第一和第二相位信息来重建载波信号。在一些实施例中，一个或多个处理器还被配置为将第一和第二相位信息从接收信号的第一标称频率缩放到不同的第二标称频率。

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