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1. 发明授权

US08355470B1 Digital polarization correction for DBS systems 有权
标题翻译： DBS系统的数字极化校正
公开(公告)号：US08355470B1
公开(公告)日：2013-01-15
申请号：US12387612
申请日：2009-05-05
申请人： Shawn M. Mason , Mark A. Billsberry , Ryan C. Groulx
发明人： Shawn M. Mason , Mark A. Billsberry , Ryan C. Groulx
IPC分类号： H03D3/22
CPC分类号： H03D3/009
摘要： A first linearly polarized component of a signal is received. A second linearly polarized component of a signal is received, wherein the second linearly polarized signal component of a signal is orthogonal to the first linearly polarized component of a signal. The first linearly polarized component of a signal and the second linearly polarized component of a signal are down-converted to a lower frequency. A polarization correction is performed on the down-converted linearly polarized components.
摘要翻译：接收信号的第一线性偏振分量。接收信号的第二线性偏振分量，其中信号的第二线性偏振信号分量与信号的第一线性偏振分量正交。信号的第一线性偏振分量和信号的第二线性偏振分量被下变频为较低的频率。对下变频的线偏振分量进行偏振校正。

2. 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。

3. 发明授权

US09116239B1 Low range altimeter antenna 有权
标题翻译：低范围高度计天线
公开(公告)号：US09116239B1
公开(公告)日：2015-08-25
申请号：US13740660
申请日：2013-01-14
申请人： Mark A. Billsberry , Howard D. Tetrault
发明人： Mark A. Billsberry , Howard D. Tetrault
IPC分类号： H01Q1/28 , G01S13/88 , G01S13/91
CPC分类号： H01Q1/28 , G01S13/882 , G01S2007/027 , H01Q1/283 , H01Q1/521 , H01Q19/30 , H01Q21/28
摘要： The present disclosure is directed to low range altimeter (LRA) antenna implementations that are resistant to signal degradation under critical weather conditions. An altimeter may include a first antenna communicatively coupled to a transmitter configured to transmit a ranging signal to a surface. The altimeter may further include a second antenna communicatively coupled to a receiver configured to receive at least a portion of the ranging signal reflected from the surface. Each of the first (transmitting) antenna and the second (receiving) antenna may include a driven element and at least one parasitic director element. In some embodiments, at least a portion of an aircraft surface may function as a parasitic reflector element in accordance with a Yagi-Uda array antenna topology.
摘要翻译：本公开涉及在关键天气条件下抵抗信号劣化的低范围高度计（LRA）天线实现。高度计可以包括通信地耦合到被配置为将测距信号发射到表面的发射机的第一天线。高度计还可以包括通信地耦合到接收器的第二天线，其被配置为接收从表面反射的测距信号的至少一部分。第一（发送）天线和第二（接收）天线中的每一个可以包括从动元件和至少一个寄生导向器元件。在一些实施例中，飞机表面的至少一部分可以用作根据Yagi-Uda阵列天线拓扑的寄生反射器元件。

4. 发明授权

US08952841B1 System and method for TCAS based navigation 有权
标题翻译：用于TCAS导航的系统和方法
公开(公告)号：US08952841B1
公开(公告)日：2015-02-10
申请号：US13349975
申请日：2012-01-13
申请人： Phillip L. Ellery , Mark A. Billsberry
发明人： Phillip L. Ellery , Mark A. Billsberry
IPC分类号： G01S13/93 , G01S13/48 , G01S13/75 , G01S13/00
CPC分类号： G01S13/872 , G01S13/60 , G01S13/9303
摘要： A traffic collision avoidance system (TCAS) based navigation system including a TCAS equipped with a directional antenna, the TCAS configured to generate a RF transmission pattern at a selected frequency, the transmission pattern including a plurality of directional beams, receive a plurality of RF signals reflected from the ground across a selected frequency band, the selected frequency band including the selected frequency, and measure frequency differences between one or more beams of the plurality of RF beams and one or more beams of the plurality of RF signals reflected from the ground, and a computing systems in communication with the TCAS, the computing system configured to calculate a ground speed of the aircraft utilizing the measured frequency differences, calculate a drift angle of the aircraft utilizing the measured plurality of frequency differences, receive a heading reference of the aircraft, and determine an aircraft navigation parameter of the aircraft.
摘要翻译：一种基于交通碰撞避免系统（TCAS）的导航系统，包括配备有定向天线的TCAS，所述TCAS被配置为以选定的频率生成RF传输模式，所述传输模式包括多个定向波束，接收多个RF信号从选定频带的地面反射所选择的频带，包括所选择的频率，并且测量多个射频波束的一个或多个波束与从地面反射的多个RF信号中的一个或多个波束之间的频率差，以及与所述TCAS通信的计算系统，所述计算系统被配置为使用所测量的频率差计算所述飞行器的地面速度，使用所测量的多个频率差计算所述飞行器的漂移角度，接收所述飞机的航向参考，并确定飞机的飞行器导航参数。

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