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1. 发明授权

US09851429B2 Terrestrial position and timing system 有权
公开(公告)号：US09851429B2
公开(公告)日：2017-12-26
申请号：US15223875
申请日：2016-07-29
申请人： Ohio University
发明人： Chris G. Bartone
IPC分类号： G01S1/08 , G01S1/50 , G01S1/04 , G01S5/02
CPC分类号： G01S1/045 , G01S1/02 , G01S1/042 , G01S1/44 , G01S1/50 , G01S5/0284 , G01S5/10 , G01S13/785
摘要： A terrestrial positioning and timing system (TPTS) comprising a ground segment and user segment is disclosed that is comprised of a spread-spectrum based range and bearing reference signal, with respect to a reference time, transmitted by an antenna over a broad region of space; and a spread-spectrum based bearing variable signal with bearing specific modulation referenced to a reference time, transmitted using a scanning antenna over a spatial region of space that is more narrow than the spread-spectrum based range and bearing reference signal transmission spatial area. Various embodiments enable the TPTS station and user to support various position, velocity or time services. Most notably, an embodiment with a single TPTS station, active interrogation/transponder reply, and data delivery subsystem can provide a position, velocity, and time solution for the user. Additional embodiments disclosed provide varying levels of user solutions to include bearing, position, velocity, or time.

2. 发明授权

US09664785B2 Method and apparatus for distance measuring equipment (DME/normal) using a smoothed concave polygonal pulse shape 有权
公开(公告)号：US09664785B2
公开(公告)日：2017-05-30
申请号：US14337130
申请日：2014-07-21
申请人： SELEX ES INC.
发明人： Euiho Kim
IPC分类号： G01B7/00 , G01S13/78
CPC分类号： G01S13/785
摘要： A method for measuring distance includes transmitting a first pair of RF pulses from an airborne interrogator, where the first pair of RF pulses are temporally separated from each other by a first time interval and each of the RF pulses in the first pair of RF pulses has a first pulse waveform. The method also includes receiving a second pair of RF pulses transmitted by a ground transponder. The RF pulses in the second pair of RF pulses have a second pulse waveform characterized by a smoothed concave polygonal function and/or a smoothed concave hexagonal function. The method further includes determining an elapsed time between transmitting the first pair of RF pulses and receiving the second pair of RF pulses and determining a distance between the airborne interrogator and the ground transponder based on at least the elapsed time.

3. 发明授权

US09442180B2 RFID tag distance measurer 有权
标题翻译： RFID标签距离测量仪
公开(公告)号：US09442180B2
公开(公告)日：2016-09-13
申请号：US14979205
申请日：2015-12-22
申请人： Trimble Navigation Limited
发明人： Jeffrey Sanders , Andrew Ansell , James M. Janky
IPC分类号： G06K7/00 , G01S5/14 , G01S5/30 , G01S13/08 , G01S13/78 , G01S13/74 , G01S5/02 , G01S7/40 , G06K19/077
CPC分类号： G01S5/0252 , G01S5/14 , G01S5/30 , G01S13/08 , G01S13/74 , G01S13/785 , G01S2007/4065 , G06K7/0008 , G06K19/0775
摘要： A radio frequency identification (RFID) tag distance measuring system and method is disclosed. One example includes a first replica path that receives a signal that is simultaneously transmitted to an RFID tag. The first replica path includes a plurality of taps at known distances along the first replica path. Each of the plurality of taps has a first tap input coupled with the first replica path. In addition, an RFID signal receiver receives a return signal from the RFID tag and provides the return signal along a measurement input, wherein each of the plurality of taps have a second tap input coupled with the measurement path. A distance determiner detects at least the first of the plurality of taps to have an output and determine a distance measurement to the RFID tag based thereon.
摘要翻译：公开了射频识别（RFID）标签测距系统和方法。一个示例包括接收同时发送到RFID标签的信号的第一复制路径。第一复制路径包括沿着第一复制路径已知距离的多个抽头。多个抽头中的每一个具有与第一复制路径耦合的第一抽头输入。另外，RFID信号接收器接收来自RFID标签的返回信号，并沿测量输入提供返回信号，其中多个抽头中的每一个具有与测量路径耦合的第二抽头输入。距离确定器至少检测多个抽头中的第一个抽头以具有输出，并且基于此确定到RFID标签的距离测量。

4. 发明授权

US09285470B2 RFID tag distance measurer 有权
公开(公告)号：US09285470B2
公开(公告)日：2016-03-15
申请号：US13900953
申请日：2013-05-23
申请人： Trimble Navigation Limited
发明人： Jeffrey Sanders , Andrew Ansell , James M. Janky
IPC分类号： H04Q5/22 , G08B13/14 , G01S13/08 , G01S3/02 , G01P11/00 , G01R25/00 , G01R29/02 , G01S13/74 , G06K7/00 , G01S5/14 , G01S5/30 , G01S13/78 , G01S7/40
CPC分类号： G01S5/0252 , G01S5/14 , G01S5/30 , G01S13/08 , G01S13/74 , G01S13/785 , G01S2007/4065 , G06K7/0008 , G06K19/0775
摘要： A radio frequency identification (RFID) tag distance measuring system and method is disclosed. One example includes a first replica path that receives a signal that is simultaneously transmitted to an RFID tag. The first replica path includes a plurality of taps at known distances along the first replica path. Each of the plurality of taps has a first tap input coupled with the first replica path. In addition, an RFID signal receiver receives a return signal from the RFID tag and provides the return signal along a measurement input, wherein each of the plurality of taps have a second tap input coupled with the measurement path. A distance determiner detects at least the first of the plurality of taps to have an output and determine a distance measurement to the RFID tag based thereon.

5. 发明授权

US09159241B1 Methods, systems, and apparatus for synthetic instrument landing system (SILS) 有权
标题翻译：合成仪表着陆系统（SILS）的方法，系统和装置
公开(公告)号：US09159241B1
公开(公告)日：2015-10-13
申请号：US13446853
申请日：2012-04-13
申请人： Timothy A. Murphy
发明人： Timothy A. Murphy
IPC分类号： G01S1/00 , G01S19/03 , G01C21/00 , G01C21/04 , G01C23/00 , G08G5/02 , G08G5/00 , G01S19/51 , G01S19/15 , B64D45/04 , G01S13/91 , G01S1/02 , G05D1/06
CPC分类号： G08G5/02 , B64D43/00 , B64D45/04 , G01S1/024 , G01S1/045 , G01S1/14 , G01S13/785 , G01S13/91 , G01S13/913 , G01S19/15 , G01S19/51 , G05D1/0676 , G08G5/0021 , G08G5/025 , Y02T50/84
摘要： Methods, systems, and apparatus for Synthetic Instrument Landing System (SILS) are disclosed. By optimally integrating new SILS capabilities on existing aircraft systems and equipment, the systems, methods, and apparatus of this disclosure affect primarily one system, the MMR, and certain aircraft wiring reconfiguration and leave most of the other airplane systems as well as pilot (flight crew) training substantially unaffected. Unlike existing solutions that are based on a classical approach of new capability integration by providing associated new landing modes that are uniquely identified, the disclosure provides only a single mode to the pilot by moving all mode-specific functionality to onboard computers such as MMRs.
摘要翻译：公开了合成仪器着陆系统（SILS）的方法，系统和装置。通过最佳地将现有飞机系统和设备上的新SILS功能整合在一起，本公开的系统，方法和装置主要影响一个系统，MMR和某些飞机接线重新配置，并使大部分其他飞机系统以及飞行员船员）训练基本上不受影响。与通过提供唯一标识的相关联的新的着陆模式的基于新能力集成的经典方法的现有解决方案不同，本公开通过将所有模式特定功能移动到诸如MMR的板载计算机上而仅向导频提供单一模式。

6. 发明授权

US09116236B1 Aircraft distance measuring equipment with directional interrogation 有权
标题翻译：飞机距离测量设备定向询问
公开(公告)号：US09116236B1
公开(公告)日：2015-08-25
申请号：US13604101
申请日：2012-09-05
申请人： Mark A. Billsberry , Shawn M. Mason
发明人： Mark A. Billsberry , Shawn M. Mason
IPC分类号： G01S13/00 , G01S13/74 , G01S13/08 , G01S13/78 , G08G5/00
CPC分类号： G01S13/785 , G01S13/9303 , G08G5/0008 , G08G5/0013 , G08G5/045 , H01Q1/28 , H01Q25/00
摘要： A multi-function avionics system that includes, but is not limited to, a combined traffic collision avoidance system (TCAS) and directional measuring equipment (DME) system that utilizes a multi-function directional antenna for both functions. The multi-function system utilizes the same directional antenna for TCAS and DME functions, which typically utilize the same communication frequency band. The multi-function antenna may include four antenna elements that discriminate the direction of the DME ground station squitter. The DME system establishes a bearing to the ground station from the squitter and uses this information to determine which directional beam to use for the DME interrogation. Directional DME interrogation reduces the power requirements relative to that required for omni-directional DME interrogation. The integration of DME and TCAS enables the removal of antennas and feeder cables from the aircraft, saving weight, drag and cost.
摘要翻译：一种多功能航空电子系统，其包括但不限于组合的交通防撞系统（TCAS）和方向测量设备（DME）系统，其利用多功能定向天线来实现两种功能。多功能系统使用相同的定向天线来实现TCAS和DME功能，通常使用相同的通信频带。多功能天线可以包括四个天线元件，其区分DME地面站点阵列的方向。 DME系统建立了一个从地震站的方位，并使用这些信息来确定哪个方向波束用于DME询问。定向DME询问相对于全向DME询问所需的功率要求降低。 DME和TCAS的集成使得能够从飞机上拆下天线和馈线，节省重量，拖动和降低成本。

7. 发明授权

US08131490B2 Methods and systems for determining a received signal frequency 失效
标题翻译：用于确定接收信号频率的方法和系统
公开(公告)号：US08131490B2
公开(公告)日：2012-03-06
申请号：US11961653
申请日：2007-12-20
申请人： Timothy P. Gibson , Jeffrey Kent Hunter
发明人： Timothy P. Gibson , Jeffrey Kent Hunter
IPC分类号： G01R23/00 , G06F11/00
CPC分类号： G01R23/02 , G01S13/785
摘要： A system and method for determining a received signal frequency by sampling the received signal at a rate less than twice a predefined nyquist rate. The system includes a distorting component configured to distort the received signal in a frequency dependent manner, at least one analog to digital converter configured to sample the received signal and the distorted signal at a rate less than twice a predefined nyquist rate, and a processing component configured to determine a frequency of the received signal based on the sampled received signal and the sampled distorted signal. The method includes distorting the received signal, sampling the received signal and the distorted signal at a rate less than twice a predefined nyquist rate, and determining a frequency of the received signal. In an embodiment, distorting includes at least one of distorting an amplitude or a group delay of the received signal.
摘要翻译：一种用于通过以小于预定奈奎斯特速率的两倍的速率对接收到的信号进行采样来确定接收信号频率的系统和方法。该系统包括被配置为以频率相关的方式使接收的信号失真的失真部件，至少一个模数转换器被配置为以小于预定义尼夫斯特速率的两倍的速率对接收到的信号和失真信号进行采样，以及处理部件被配置为基于所采样的接收信号和采样的失真信号来确定接收信号的频率。该方法包括使接收到的信号失真，以接收信号和失真信号采样，其速率小于预定义数速率的两倍，并确定接收信号的频率。在一个实施例中，失真包括使接收信号的振幅或组延迟失真中的至少一个。

8. 发明授权

US07683826B2 Method of electromagnetic coupling between a radar in the L band and radionavigation equipment item and autoprotection and radionavigation device 失效
标题翻译： L波段雷达与无线电导航设备项目以及自动保护和无线电导航设备之间的电磁耦合方法
公开(公告)号：US07683826B2
公开(公告)日：2010-03-23
申请号：US11338874
申请日：2006-01-25
申请人： Carlos Leiras
发明人： Carlos Leiras
IPC分类号： G01S7/285 , G01S13/86 , G01S13/00
CPC分类号： G01S13/87 , G01S13/785
摘要： A device and a method for eliminating interference between a radar working on the L frequency band and an aeronautical radio navigation equipment item, such as DME (Distance Measurement Equipment). When the radio navigation equipment operates, the radar emits periodically in all or part of the frequency band and then halts its emissions, each emission has a given duration and being separated from the previous emission by an interval of silence.
摘要翻译：一种用于消除在L频带上工作的雷达与航空无线电导航设备项目（如DME（距离测量设备））之间的干扰的装置和方法。当无线电导航设备运行时，雷达在全部或部分频带周期性地发射，然后停止其发射，每个发射具有给定的持续时间，并以静默间隔与先前的发射分离。

9. 发明申请

US20100001895A1 METHOD AND APPARATUS FOR DETERMINING DME REPLY EFFICIENCY 审中-公开
标题翻译：用于确定二甲醚回收效率的方法和装置
公开(公告)号：US20100001895A1
公开(公告)日：2010-01-07
申请号：US12442568
申请日：2007-10-12
申请人： Michael John Leeson
发明人： Michael John Leeson
IPC分类号： G01S13/91 , G01S13/78
CPC分类号： G01S1/024 , G01S13/785
摘要： This invention relates to a method for determining the reply efficiency of a DME navigation beacon and to an apparatus for performing the method. The invention involves locating an RF receiver nearby a DME beacon to be tested. The RF receiver analyses all signals received on the interrogation frequency of that beacon to determine pulse pairs which correspond to a valid interrogation of that beacon. Other pulse events of interest may also be detected. The RF receiver also records all signals on the reply frequency of the beacon and detects all replies sent by the beacon. Particular interrogations can then be correlated with replies and the reply efficiency of the beacon determined. Several RF receivers may be located round the beacon to better provide correlation between particular interrogations and responses.
摘要翻译：本发明涉及一种用于确定DME导航信标的回复效率的方法以及用于执行该方法的装置。本发明涉及将待测试的DME信标附近的RF接收机定位。 RF接收机分析在该信标的询问频率上接收的所有信号，以确定对应于该信标的有效询问的脉冲对。也可以检测到感兴趣的其它脉冲事件。 RF接收机还记录信标的回复频率上的所有信号，并检测由信标发送的所有应答。然后可以将特定询问与确定的信标的回复和回复效率相关联。几个RF接收机可以位于信标周围，以更好地提供特定询问和响应之间的相关性。

10. 发明授权

US07636058B2 Pulse signal transmitting apparatus, method of adjusting waveform of the same, and DME ground station apparatus 有权
标题翻译：脉冲信号发送装置，其波形调整方法以及DME地面站装置
公开(公告)号：US07636058B2
公开(公告)日：2009-12-22
申请号：US12022571
申请日：2008-01-30
申请人： Yukihiro Kamimura
发明人： Yukihiro Kamimura
IPC分类号： G01S13/08 , G01S13/84 , G01S7/40
CPC分类号： G01S13/785 , G01S7/282
摘要： A transmitting apparatus comprises a generator for generating a pulse signal having a waveform approximated to the Gaussian error function at a prescribed timing, a transmitter for power-amplifying a pulse signal generated by the generator, and transmitting the amplified pulse signal, an evaluator for extracting a pulse waveform part from the power-amplified pulse signal, comparing the extracted pulse waveform part with an ideal waveform so as to obtain an error amount between the pulse waveform part and the ideal waveform, and evaluating whether or not the error amount is within a prescribed error range, and a controller for causing the generator to subject the waveform of the pulse signal to correction in such a manner that the error amount becomes smaller each time an evaluation result of the evaluator is that the error amount is out of the prescribed error range.
摘要翻译：发送装置包括发生器，用于在规定的定时产生具有与高斯误差函数近似的波形的脉冲信号，用于对发生器产生的脉冲信号进行功率放大并发送放大的脉冲信号的发送器，用于提取的评估器来自功率放大脉冲信号的脉搏波形部分，将所提取的脉搏波形部分与理想波形进行比较，以获得脉搏波形部分与理想波形之间的误差量，并评估误差量是否在规定的误差范围，以及用于使发生器使脉冲信号的波形进行校正的控制器，使得每当评估者的评估结果为误差量超出规定误差时，误差量变小范围。

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