公开(公告)号：US20100259437A1

公开(公告)日：2010-10-14

申请号：US11693066

申请日：2007-03-29

Applicant: William F. Dixon ,  Troy D. Fuchser ,  Abraham L. Craig

Inventor： William F. Dixon ,  Troy D. Fuchser ,  Abraham L. Craig

IPC: G01S7/36 ,  G01S19/21 ,  G01S19/32

CPC classification number: H04K3/228 ,  G01S19/21 ,  H04K3/90

Abstract: A temporal nuller for removing or minimizing narrow band interference/jamming power from a global positioning system (GPS) receiver's input includes a first signal path having a first input and a first output, at least one time delay device and an adjustable phase shift device located within the first signal path, and a second signal path having a second input and a second output. The first signal input is connected to the second signal input, and the first signal output is connected to the second signal output. Further, the at least one time delay device is operative to introduce a time delay between a signal at an output of the at least one time delay device relative to a signal at an input of the at least one time delay device.

Abstract translation: 用于从全球定位系统（GPS）接收机的输入去除或最小化窄带干扰/干扰功率的时间零位包括具有第一输入和第一输出的第一信号路径，至少一个时间延迟装置和可调相移装置 在第一信号路径内，以及具有第二输入和第二输出的第二信号路径。 第一个信号输入连接到第二个信号输入，第一个信号输出连接到第二个信号输出。 此外，所述至少一个时间延迟装置可操作以在所述至少一个时间延迟装置的输出处的信号之间相对于所述至少一个时间延迟装置的输入处的信号引入时间延迟。

公开(公告)号：US07015858B2

公开(公告)日：2006-03-21

申请号：US10726978

申请日：2003-12-03

Applicant: Troy D. Fuchser ,  William F. Dixon

Inventor： Troy D. Fuchser ,  William F. Dixon

IPC: H01Q3/02

CPC classification number: H04K3/228 ,  G01S19/21 ,  G01S19/36 ,  H04K3/226 ,  H04K3/90 ,  H04K2203/32

Abstract: An antijam module (10) for GPS utilizing the vertical and horizontal polarizations of signal output by each antenna element in an array of antenna elements. This effectively doubles the number of channels from the conventional number of channels (N) to 2N. Each of these channels is uniquely weighted in accordance with conventional teachings such that the system operates with a capability to null 2N−1 jammers. Another aspect of the invention is the provision of a system and method for moving the reference channel from one channel to another in respect to the detection of received power levels. In specific implementations, the applied weights are dithered in a predetermined direction and a predetermined amount to ascertain when and whether to pass the reference channel designation.

Abstract translation: 一种用于GPS的抗干扰模块（10），其利用由天线元件阵列中的每个天线元件输出的信号的垂直和水平偏振。 这有效地使从通道数（N）到2N的通道数目增加一倍。 根据常规教导，这些通道中的每一个被独特地加权，使得该系统以能够使2N-1个干扰器为零的能力运行。 本发明的另一方面是提供一种用于相对于接收功率电平的检测将参考信道从一个信道移动到另一个信道的系统和方法。 在具体实现中，将所施加的权重以预定方向和预定量抖动以确定何时以及是否通过参考信道指定。

公开(公告)号：US08159390B2

公开(公告)日：2012-04-17

申请号：US11693066

申请日：2007-03-29

Applicant: William F. Dixon ,  Troy D. Fuchser ,  Abraham L. Craig

Inventor： William F. Dixon ,  Troy D. Fuchser ,  Abraham L. Craig

IPC: G01S19/21

CPC classification number: H04K3/228 ,  G01S19/21 ,  H04K3/90

Abstract: A temporal nuller for removing or minimizing narrow band interference/jamming power from a global positioning system (GPS) receiver's input includes a first signal path having a first input and a first output, at least one time delay device and an adjustable phase shift device located within the first signal path, and a second signal path having a second input and a second output. The first signal input is connected to the second signal input, and the first signal output is connected to the second signal output. Further, the at least one time delay device is operative to introduce a time delay between a signal at an output of the at least one time delay device relative to a signal at an input of the at least one time delay device.

Abstract translation: 用于从全球定位系统（GPS）接收机的输入去除或最小化窄带干扰/干扰功率的时间零位包括具有第一输入和第一输出的第一信号路径，至少一个时间延迟装置和可调相移装置 在第一信号路径内，以及具有第二输入和第二输出的第二信号路径。 第一个信号输入连接到第二个信号输入，第一个信号输出连接到第二个信号输出。 此外，所述至少一个时间延迟装置可操作以在所述至少一个时间延迟装置的输出处的信号之间相对于所述至少一个时间延迟装置的输入处的信号引入时间延迟。

公开(公告)号：US4468793A

公开(公告)日：1984-08-28

申请号：US211499

申请日：1980-12-01

Applicant: Charles R. Johnson ,  Phillip W. Ward ,  Joe H. Lindley ,  Robert A. Maher ,  Jerry D. Holmes ,  Troy D. Fuchser

Inventor： Charles R. Johnson ,  Phillip W. Ward ,  Joe H. Lindley ,  Robert A. Maher ,  Jerry D. Holmes ,  Troy D. Fuchser

IPC: G01S1/00 ,  G01S5/14 ,  G01S19/11 ,  G01S19/44 ,  G01S19/46 ,  G01S19/55 ,  G01S5/02

CPC classification number: G01S19/32

Abstract: A global positioning system comprises an RF receiver for receiving L.sub.1, L.sub.2 p-code or ca code modulated frequency outputs from one or more space vehicles, a multiplexer operably connected to the receiver multiplexes the L.sub.1 and L.sub.2 signals to the receiver, and code and carrier tracking loops operably connected to the receiver, each loop including a plurality of filters, one for tracking line-of-sight dynamics and another for determining ionosphere effects on the L.sub.1 and/or L.sub.2 signals.

Abstract translation: 全球定位系统包括一个RF接收机，用于从一个或多个空中载波接收L1，L2 p码或ca码调制频率输出，可操作地连接到接收机的多路复用器将L1和L2信号复用到接收机，以及编码和载波 可操作地连接到接收器的跟踪环路，每个环路包括多个滤波器，一个用于跟踪视线动态，另一个用于确定对L1和/或L2信号的电离层影响。

公开(公告)号：US3969730A

公开(公告)日：1976-07-13

申请号：US549604

申请日：1975-02-12

Applicant: Troy D. Fuchser

Inventor： Troy D. Fuchser

IPC: H01Q1/42 ,  H01Q21/08 ,  H01Q21/20 ,  H01Q13/12

CPC classification number: H01Q21/08 ,  H01Q1/42 ,  H01Q21/205

Abstract: Disclosed is an omnidirectional antenna comprising vertically stacked pairs of folded slot antennas. Each slot antenna is electrically loaded to allow reduction of slot physical dimensions to the point that the diameter of two slots when mounted back-to-back is less than one wavelength. The resulting antenna produces a highly omnidirectional signal having vertical polarization. Vertical beam shaping is achieved by selection of the phase and magnitude of the signal transmitted by each pair of folded slot elements.

Abstract translation: 公开了一种全向天线，其包括垂直堆叠的折叠缝隙天线对。 每个缝隙天线被电加载，以允许将缝隙物理尺寸减小到背对背安装时两个槽的直径小于一个波长的点。 所产生的天线产生具有垂直极化的高度全向信号。 通过选择由每对折叠槽元件传输的信号的相位和幅度来实现垂直波束整形。