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31. 发明授权

US08843313B2 Multipath isolation through the combined use of antenna diversity and frequency diversity 有权
标题翻译：通过组合使用天线分集和频率多样性进行多径隔离
公开(公告)号：US08843313B2
公开(公告)日：2014-09-23
申请号：US13495958
申请日：2012-06-13
申请人： Per K. Enge , Bart Ferrell , Gregory M. Gutt , James C. Lassa , Michael A. Rizzo , David A. Whelan
发明人： Per K. Enge , Bart Ferrell , Gregory M. Gutt , James C. Lassa , Michael A. Rizzo , David A. Whelan
IPC分类号： G01S19/22 , G01S19/47 , G01S19/50
CPC分类号： G01S19/22 , G01S19/47 , G01S19/50
摘要： A method, system, and apparatus are disclosed for multipath isolation through the combined use of antenna diversity and frequency diversity. In particular, the present disclosure utilizes antenna diversity and frequency diversity to combat the deleterious effects of reflected signals on the positioning accuracy of satellite navigation systems. In at least one embodiment, the present disclosure uses two antennas and two frequencies for operation with a satellite navigation system. The present disclosure segregates the antennas and frequencies into two classes: references and monitors. The reference measurements are used for estimating the state of the vehicle, and the monitor measurements are used to detect faults that might degrade the reference estimation. Thus, the present disclosure enables an improvement in the positioning error experienced by roving users in downtown and indoor environments. Applications include positive train control, aircraft surface guidance, marine craft navigation in canals and ports, as well as automotive lane keeping.
摘要翻译：公开了通过天线分集和频率分集的组合使用来进行多径隔离的方法，系统和装置。特别地，本公开利用天线分集和频率分集来对抗反射信号对卫星导航系统的定位精度的有害影响。在至少一个实施例中，本公开使用两个天线和两个频率来与卫星导航系统一起操作。本公开将天线和频率分为两类：参考和监视器。参考测量用于估计车辆的状态，并且使用监视器测量来检测可能降低参考估计的故障。因此，本公开使得能够改善在市中心和室内环境中流动用户所经历的定位误差。应用包括积极的列车控制，飞机表面导航，运河和港口的船舶导航，以及汽车车道保养。

32. 发明申请

US20140104102A1 SPACE BASED AUTHENTICATION UTILIZING SIGNALS FROM LOW AND MEDIUM EARTH ORBIT 有权
公开(公告)号：US20140104102A1
公开(公告)日：2014-04-17
申请号：US13653385
申请日：2012-10-16
申请人： Per K. Enge , David A. Whelan , Gregory M. Gutt , David Lawrence
发明人： Per K. Enge , David A. Whelan , Gregory M. Gutt , David Lawrence
IPC分类号： G01S19/05
CPC分类号： H04B1/707 , G01S19/03 , G01S19/215 , H04B7/1851 , H04B7/19 , H04K3/22 , H04K3/65 , H04K3/86 , H04K3/90 , H04K2203/32 , H04W4/02 , H04W12/06
摘要： A system and methods for location-based authentication using medium earth orbit (MEO) and low earth orbit (LEO) satellites are presented. Location of a client device is authenticated based on at least one client received MEO satellite signal received from at least one MEO satellite at the client device and at least one client received LEO satellite signal received from at least one LEO satellite at the client device.

33. 发明申请

US20130203437A1 CELLS OBTAINING TIMING AND POSITIONING BY USING SATELLITE SYSTEMS WITH HIGH POWER SIGNALS FOR IMPROVED BUILDING PENETRATION 有权
标题翻译：通过使用卫星系统与高功率信号获取时间和定位的电池，用于改进建筑物穿透
公开(公告)号：US20130203437A1
公开(公告)日：2013-08-08
申请号：US13442603
申请日：2012-04-09
申请人： David A. Whelan , Gregory M. Gutt
发明人： David A. Whelan , Gregory M. Gutt
IPC分类号： H04W24/00 , H04B7/185
CPC分类号： G01S19/23 , G01S19/05 , G01S19/21 , G01S19/256
摘要： A system, method, and apparatus for cells to obtain timing and positioning by using satellite systems with high power signals for improved building penetration are disclosed herein. In particular, the present disclosure relates to providing timing synchronization and geolocation for small cells or macrocells in attenuated and/or indoor environments. In order to achieve timing synchronization and geolocation, the cells utilize high power signals, which contain timing information, in conjunction with related aiding information. Satellites, such as Low Earth Orbiting (LEO) Iridium satellites, are employed to transmit the high powered signals to the cells.
摘要翻译：本文公开了一种用于通过使用具有高功率信号的卫星系统来获得定时和定位的小区的系统，方法和装置，用于改善建筑物穿透。特别地，本公开涉及在衰减和/或室内环境中为小型小区或宏小区提供定时同步和地理定位。为了实现定时同步和地理定位，小区利用包含定时信息的高功率信号和相关的辅助信息。使用诸如低地球轨道（LEO）铱星等卫星将高功率信号传送到小区。

34. 发明授权

US08035558B2 Precise absolute time transfer from a satellite system 有权
标题翻译：精确的绝对时间从卫星系统传输
公开(公告)号：US08035558B2
公开(公告)日：2011-10-11
申请号：US12130893
申请日：2008-05-30
申请人： Clark E. Cohen , David A. Whelan , Robert W. Brumley , Gregory M. Gutt , Barton G. Ferrell
发明人： Clark E. Cohen , David A. Whelan , Robert W. Brumley , Gregory M. Gutt , Barton G. Ferrell
IPC分类号： G01S19/25 , G01S19/05
CPC分类号： G01S19/23 , G01S19/05 , G01S19/21 , G01S19/256
摘要： Systems and methods according to one or more embodiments are provided for obtaining a precise absolute time using a satellite system. The precise absolute time may be used, for example, as an aid for positioning systems including navigation in attenuated or jammed environments. A method of obtaining precise absolute time transfer from a satellite according to an embodiment comprises: receiving a precision time signal from a satellite, wherein the precision time signal comprises a periodic repeating code; determining a timing phase of the code; receiving additional aiding information; and using the timing phase and the additional aiding information to determine a precise absolute time.
摘要翻译：提供根据一个或多个实施例的系统和方法，用于使用卫星系统获得精确的绝对时间。可以使用精确的绝对时间，例如，作为包括导航在衰减或卡住的环境中的定位系统的辅助。根据实施例的从卫星获得精确的绝对时间传输的方法包括：从卫星接收精确时间信号，其中精度时间信号包括周期性重复码; 确定代码的定时阶段; 接收额外的辅助信息; 并使用定时阶段和附加辅助信息来确定精确的绝对时间。

35. 发明授权

US09465582B1 Significant random number generator 有权
标题翻译：随机数发生器
公开(公告)号：US09465582B1
公开(公告)日：2016-10-11
申请号：US13229668
申请日：2011-09-09
申请人： David A. Whelan , Gregory M. Gutt
发明人： David A. Whelan , Gregory M. Gutt
IPC分类号： G06F7/04 , G06F7/58 , H04L9/06 , G01S13/22
CPC分类号： G06F7/588 , G01S13/222 , G06F7/58 , G06F7/582 , G06F21/31 , G06F2221/2111 , H04B7/18593 , H04L9/0662 , H04L9/0866 , H04L9/3236 , H04L9/3297 , H04L2209/84 , H04W4/023
摘要： A system, method, and apparatus for a significant random number generator are disclosed. The method involves sensing, with a sensor on a spacecraft, a physical phenomenon. In one or more embodiments, the system utilizes a Lower Earth Orbiting (LEO) Iridium satellite for the spacecraft. The method further involves outputting, from the sensor, a value for the physical phenomenon. Also, the method involves inputting the value of the physical phenomenon into a pseudo-random number generator (PRNG). In addition, the method involves generating, with the PRNG, a sequence of random numbers using the value of the physical phenomenon as a seed for the PRNG. In some embodiments, the disclosed significant random number generator is employed by a spot beam based authentication system that is used to authenticate a claimant. In other embodiments, the disclosed significant random number generator is used for cryptology, routing network traffic, anti-jamming, certified time stamping, and secure identification applications.
摘要翻译：公开了一种用于大量随机数发生器的系统，方法和装置。该方法包括用航天器上的传感器检测物理现象。在一个或多个实施例中，系统利用用于航天器的低地球轨道（LEO）铱星卫星。该方法还包括从传感器输出物理现象的值。此外，该方法包括将物理现象的值输入到伪随机数生成器（PRNG）中。另外，该方法包括使用PRNG生成一系列随机数，使用物理现象的值作为PRNG的种子。在一些实施例中，所公开的重要的随机数发生器被用于认证索赔者的基于点光束的认证系统采用。在其他实施例中，所公开的重要随机数发生器用于密码学，路由网络流量，抗干扰，认证时间戳和安全识别应用。

36. 发明授权

US09213103B2 Cells obtaining timing and positioning by using satellite systems with high power signals for improved building penetration 有权
标题翻译：通过使用具有高功率信号的卫星系统获得定时和定位的单元，以改善建筑物的穿透性
公开(公告)号：US09213103B2
公开(公告)日：2015-12-15
申请号：US13442603
申请日：2012-04-09
申请人： David A. Whelan , Gregory M. Gutt
发明人： David A. Whelan , Gregory M. Gutt
IPC分类号： G01S19/05 , G01S19/39 , G01S19/23 , G01S19/21 , G01S19/25
CPC分类号： G01S19/23 , G01S19/05 , G01S19/21 , G01S19/256
摘要： A system, method, and apparatus for cells to obtain timing and positioning by using satellite systems with high power signals for improved building penetration are disclosed herein. In particular, the present disclosure relates to providing timing synchronization and geolocation for small cells or macrocells in attenuated and/or indoor environments. In order to achieve timing synchronization and geolocation, the cells utilize high power signals, which contain timing information, in conjunction with related aiding information. Satellites, such as Low Earth Orbiting (LEO) Iridium satellites, are employed to transmit the high powered signals to the cells.
摘要翻译：本文公开了一种用于通过使用具有高功率信号的卫星系统来获得定时和定位的小区的系统，方法和装置，用于改善建筑物穿透。特别地，本公开涉及在衰减和/或室内环境中为小型小区或宏小区提供定时同步和地理定位。为了实现定时同步和地理定位，小区利用包含定时信息的高功率信号和相关的辅助信息。使用诸如低地球轨道（LEO）铱星等卫星将高功率信号传送到小区。

37. 发明授权

US08989652B2 Advanced timing and time transfer for satellite constellations using crosslink ranging and an accurate time source 有权
标题翻译：使用交联测距和准确时间源的卫星星座的高级计时和时间传输
公开(公告)号：US08989652B2
公开(公告)日：2015-03-24
申请号：US13418200
申请日：2012-03-12
申请人： David A. Whelan , Gregory M. Gutt , Peter M. Fyfe
发明人： David A. Whelan , Gregory M. Gutt , Peter M. Fyfe
IPC分类号： H04B7/19 , H04B7/185 , G01S13/76 , G01S19/11
CPC分类号： H04B7/18521 , G01S13/765 , G01S19/11
摘要： A system, method, and apparatus for advanced timing and time transfer for satellite constellations using crosslink ranging and an accurate time source are disclosed herein. In particular, the present disclosure relates generally to systems for providing improved positioning, navigation, and/or timing information for oscillator calibration and more specifically, to use at least one satellite with accessibility to an accurate time source to calibrate the local oscillator on a crosslink paired satellite. In at least, one embodiment, time synchronization on a subset of satellites with crosslinking capabilities is used to distribute time through a network of crosslinked satellites.
摘要翻译：本文公开了一种使用交联测距和准确时间源的用于卫星星座的高级定时和时间传输的系统，方法和装置。特别地，本公开总体上涉及用于提供用于振荡器校准的改进的定位，导航和/或定时信息的系统，更具体地说，使用至少一个具有准确时间源的可访问性的卫星来校准交联上的本地振荡器配对卫星。在至少一个实施例中，使用具有交联能力的卫星子集上的时间同步来通过交联卫星网络分配时间。

38. 发明申请

US20120218147A1 Precise Absolute Time Transfer From A Satellite System 有权
标题翻译：从卫星系统精确绝对时间转移
公开(公告)号：US20120218147A1
公开(公告)日：2012-08-30
申请号：US13267714
申请日：2011-10-06
申请人： David A. Whelan , Gregory M. Gutt
发明人： David A. Whelan , Gregory M. Gutt
IPC分类号： G01S19/24
CPC分类号： G01S19/05 , G01S19/21 , G01S19/23 , G01S19/256
摘要： Various techniques are provided for obtaining a precise absolute time using a satellite system. In one example, a method of transferring precise absolute time from a satellite to a device includes receiving data from a messaging channel, wherein the data has a frame structure. The method also includes using the data to identify the satellite and a position of the satellite, correcting for signal time of flight using the satellite identity and the position, and using the data as a time reference to align a receiver clock to the frame structure. The method also includes, with the receiver clock aligned to the frame structure, receiving a precision time signal from the satellite, wherein the precision time signal comprises a periodic repeating code. The method also includes determining a timing phase of the code and using the timing phase to determine a precise absolute time.
摘要翻译：提供了各种技术，用于使用卫星系统获得精确的绝对时间。在一个示例中，将精确绝对时间从卫星传送到设备的方法包括从消息通道接收数据，其中数据具有帧结构。该方法还包括使用数据来识别卫星和卫星的位置，使用卫星身份和位置校正信号飞行时间，并且使用数据作为将接收机时钟对准帧结构的时间参考。所述方法还包括：接收器时钟与所述帧结构对准，从所述卫星接收精确时间信号，其中所述精确时间信号包括周期性重复码。该方法还包括确定代码的定时相位并使用定时阶段来确定精确的绝对时间。

39. 发明授权

US07583225B2 Low earth orbit satellite data uplink 有权
标题翻译：低地球轨道卫星数据上行
公开(公告)号：US07583225B2
公开(公告)日：2009-09-01
申请号：US11749652
申请日：2007-05-16
申请人： Clark E. Cohen , David A. Whelan , Robert W. Brumley , Gregory M. Gutt , Barton G. Ferrell
发明人： Clark E. Cohen , David A. Whelan , Robert W. Brumley , Gregory M. Gutt , Barton G. Ferrell
IPC分类号： G01S5/14 , H04B7/19
CPC分类号： H04B7/1853
摘要： A low earth orbit (LEO) satellite data uplink is provided. In one embodiment, a method of providing a data uplink to a LEO satellite includes determining position information using a LEO signal received from the LEO satellite, a first ranging signal received from a first ranging source, and a second ranging signal received from a second ranging source. The method also includes determining a timing advance parameter using a local clock reference and a LEO satellite clock reference. The method further includes preparing a data uplink signal comprising uplink data to be broadcast to the LEO satellite. In addition, the method includes synchronizing the data uplink signal with the LEO satellite using the timing advance parameter. The method also includes broadcasting the data uplink signal to the LEO satellite.
摘要翻译：提供了低地球轨道（LEO）卫星数据上行链路。在一个实施例中，向LEO卫星提供数据上行链路的方法包括使用从LEO卫星接收的LEO信号来确定位置信息，从第一测距源接收的第一测距信号和从第二测距接收的第二测距信号资源。该方法还包括使用本地时钟参考和LEO卫星时钟参考确定定时提前参数。该方法还包括准备包括要广播到LEO卫星的上行链路数据的数据上行链路信号。另外，该方法包括使用定时提前参数将数据上行链路信号与LEO卫星同步。该方法还包括向LEO卫星广播数据上行链路信号。

40. 发明授权

US07554481B2 Localized jamming of navigation signals 有权
标题翻译：导航信号的本地化干扰
公开(公告)号：US07554481B2
公开(公告)日：2009-06-30
申请号：US11749667
申请日：2007-05-16
申请人： Clark E. Cohen , David A. Whelan , Robert W. Brumley , Gregory M. Gutt , Barton G. Ferrell
发明人： Clark E. Cohen , David A. Whelan , Robert W. Brumley , Gregory M. Gutt , Barton G. Ferrell
IPC分类号： H04K3/00 , H04B1/66 , G01S3/00
CPC分类号： G01S19/31 , G01S19/015 , G01S19/02 , G01S19/03 , G01S19/07 , G01S19/11 , G01S19/12 , G01S19/21 , G01S19/47 , H04K3/28 , H04K3/42 , H04K3/43 , H04K3/90
摘要： Various approaches to localized jamming of navigation signals are provided. In one embodiment, a navigation signal comprises at least a portion of a low earth orbit (LEO) signal provided by a LEO satellite. A noise source is filtered to provide a plurality of filtered noise signals in a plurality of frequency bands. The navigation signal is spread over a plurality of channels of the LEO signal. The channels are distributed over the frequency bands and a plurality of time slots. A pseudo random noise (PRN) sequence is generated. The filtered noise signals are modulated using the PRN sequence to provide a plurality of modulated noise signals. The modulated noise signals are broadcast over an area of operations to provide a plurality of jamming bursts corresponding to the navigation signal. The jamming bursts are configured to substantially mask the navigation signal in the area of operations.
摘要翻译：提供了导航信号局部干扰的各种方法。在一个实施例中，导航信号包括由LEO卫星提供的低地球轨道（LEO）信号的至少一部分。噪声源被滤波以在多个频带中提供多个滤波的噪声信号。导航信号分散在LEO信号的多个通道上。信道分布在频带和多个时隙上。产生伪随机噪声（PRN）序列。使用PRN序列调制滤波后的噪声信号以提供多个调制噪声信号。调制的噪声信号在操作区域上广播以提供对应于导航信号的多个干扰突发。干扰突发被配置为基本上掩盖操作区域中的导航信号。

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