公开(公告)号：US06825807B1

公开(公告)日：2004-11-30

申请号：US10374316

申请日：2003-02-25

Applicant: Douglas V. McKinnon

Inventor： Douglas V. McKinnon

IPC: H01Q300

CPC classification number: H01Q1/1257 ,  H04B7/18517 ,  H04B7/19

Abstract: Embodiments of the present invention are directed to a method and an apparatus for preventing interference of geosynchronous satellites due to ground stations with misaligned antennas. In one embodiment, a two-way satellite ground terminal is configured to communicate with a geosynchronous target satellite which transmits a target satellite signal. The ground terminal comprises an antenna which is configured to receive the target satellite signal from the geosynchronous target satellite only if the antenna is oriented toward the geosynchronous target satellite. A transmitter is configured to transmit signals from the ground terminal via the antenna A signal detector is operatively coupled with the antenna and with the transmitter. The signal detector is configured to enable the transmitter to transmit signals from the ground terminal to the target satellite via the antenna only upon detecting the target satellite signal received by the antenna from the geosynchronous target satellite at a signal level above a preset threshold level.

Abstract translation: 本发明的实施例涉及一种用于防止由于具有未对准天线的地面站引起的地球同步卫星的干扰的方法和装置。 在一个实施例中，双向卫星接地终端被配置为与发射目标卫星信号的地球同步目标卫星通信。 接地端子包括天线，其被配置为仅当天线朝向地球同步目标卫星时才从地球同步目标卫星接收目标卫星信号。 发射器被配置为经由天线从接地端子传输信号。信号检测器可操作地与天线和发射器耦合。 所述信号检测器被配置成使得所述发射机仅在所述天线从所述地球同步目标卫星在高于预设阈值水平的信号电平上检测到的目标卫星信号时，经由所述天线将信号从所述接地终端发射到所述目标卫星。

公开(公告)号：US06724344B1

公开(公告)日：2004-04-20

申请号：US10430163

申请日：2003-05-05

Applicant: Michael H. Stockmaster ,  Charles E. Mc Dowell

Inventor： Michael H. Stockmaster ,  Charles E. Mc Dowell

IPC: H01Q300

CPC classification number: G01S19/21

Abstract: A signal processing system is disclosed. The signal processing system comprises an antenna receiving a radio frequency (RF) signal. The signal processing system also comprises radio frequency circuitry coupled to the RF antenna, an analog to digital converter coupled to the RF circuitry and converting an analog signal from the RF circuitry to a digital signal. The signal processing further comprises a processing device generating a fast Fourier transform including N bins and an adaptive weight calculator calculating no more than (N/2)+1 weights based on information from at least (N/2)−1 bins, the no more than (N/2)+1 weights being applied to the output of the N bins in a weighted summation. Further, the signal processing system comprises an inverse fast Fourier transform calculator producing an inverse fast Fourier transform using the weighted summation.

Abstract translation: 公开了一种信号处理系统。 信号处理系统包括接收射频（RF）信号的天线。 信号处理系统还包括耦合到RF天线的射频电路，耦合到RF电路并将来自RF电路的模拟信号转换成数字信号的模数转换器。 该信号处理还包括一个处理装置，该处理装置根据来自至少（N / 2）-1个箱的信息，产生包括N个箱的快速傅里叶变换和一个自适应加权计算器，该自适应加权计算器基于至少（N / 2）-1个箱的信息计算不多于（N / 2） 在加权求和中将超过（N / 2）+1个权重施加到N个仓的输出。 此外，信号处理系统包括使用加权求和的产生快速傅立叶逆变换的快速傅立叶逆变换反算变换计算机。

公开(公告)号：US06707425B2

公开(公告)日：2004-03-16

申请号：US10104992

申请日：2002-03-21

Applicant: Jyrki Tapio Louhi

Inventor： Jyrki Tapio Louhi

IPC: H01Q300

CPC classification number: H01Q1/1257 ,  H04B17/318 ,  H04W16/24

Abstract: A method and system is directed to aligning a point-to-multipoint access terminal to an access point. The access terminal provides an output signal, including first and second components, to a readout port. Signal strength that is associated with a received signal is encoded in the first component, while the authentication status of the communication link is encoded in the second component. The antenna alignment is adjusted while monitoring the signal strength via the readout port. The antenna is substantially aligned when the signal strength reaches a peak level. In one example, the signal strength is encoded in a DC component of the output signal, while the authentication status is encoded in an AC component of the output signal. The AC component of an AC encoded signal may have a varied amplitude and/or frequency.

Abstract translation: 方法和系统旨在将点对多点接入终端与接入点对准。 接入终端向读出端口提供包括第一和第二组件的输出信号。 与接收信号相关联的信号强度被编码在第一分量中，而通信链路的认证状态被编码在第二分量中。 在通过读出端口监视信号强度的同时调整天线对准。 当信号强度达到峰值电平时，天线基本对齐。 在一个示例中，信号强度被编码在输出信号的DC分量中，而认证状态被编码在输出信号的AC分量中。 AC编码信号的AC分量可以具有变化的幅度和/或频率。

公开(公告)号：US06697026B1

公开(公告)日：2004-02-24

申请号：US10094668

申请日：2002-03-11

Applicant: Robert J. Hemmingsen, II

Inventor： Robert J. Hemmingsen, II

IPC: H01Q300

CPC classification number: H01Q3/06 ,  H01Q1/125 ,  H01Q19/132

Abstract: A satellite antenna alignment device is provided which includes a base plate having a semi-globular-shaped member of dome secured thereto and extending upwardly therefrom which defines a sealed compartment which is filled with a liquid or gaseous medium. An indicator is positioned within the sealed compartment. The exterior surface of the dome is provided with elevational and skew angle indicia thereon. The device enables the antenna to be quickly and easily elevated to the proper elevation and skewed to the proper skew angle.

Abstract translation: 提供了一种卫星天线对准装置，其包括具有固定到其上并从其向上延伸的圆顶半球状构件的基板，其限定了填充有液体或气体介质的密封隔室。 指示器位于密封隔间内。 圆顶的外表面在其上设置有仰角和斜角标记。 该装置能够使天线快速且容易地升高至适当的高度并且倾斜到适当的倾斜角度。

公开(公告)号：US06661388B2

公开(公告)日：2003-12-09

申请号：US10143473

申请日：2002-05-10

Applicant: Glen J. Desargant ,  Albert Louis Bien

Inventor： Glen J. Desargant ,  Albert Louis Bien

IPC: H01Q300

CPC classification number: H01Q19/19 ,  H01Q1/28 ,  H01Q21/08

Abstract: A multi-reflector antenna array capable of simultaneously transmitting and receiving communication signals at Ku-band frequencies is mounted on an exterior surface of an aircraft. The antenna array provides four cassegrain reflector antennas mechanically connected together in a group capable of being simultaneously mechanically scanned. A common support structure fixes the antennas with respect to each other. A drive mechanism and directional azimuth and elevation motors control the position of the array. The aerodynamic drag of the array is minimized using four antennas rather than a single large diameter antenna. Each antenna is positioned on a common horizontal centerline. Two centrally located antennas are positioned between two smaller diameter antennas. The antennas and positioning equipment are both mounted for rotation within a radome. A corporate power combiner/divider is provided to adjust both an amplitude and a phase of each antenna signal.

Abstract translation: 能够以Ku波段频率同时发送和接收通信信号的多反射器天线阵列安装在飞行器的外表面上。 天线阵列提供了四个可以同时机械扫描的组合机械连接在一起的卡塞格林反射器天线。 共同的支撑结构相对于彼此固定天线。 驱动机构和定向方位角和高程电机控制阵列的位置。 使用四个天线而不是单个大直径天线来最小化阵列的空气动力学阻力。 每个天线位于公共的水平中心线上。 两个中心位置的天线位于两个较小直径的天线之间。 天线和定位设备都安装在天线罩内旋转。 提供公司电力合成器/分频器来调整每个天线信号的幅度和相位。

公开(公告)号：US06621460B2

公开(公告)日：2003-09-16

申请号：US09862882

申请日：2001-05-21

Applicant: A. Dorian Challoner

Inventor： A. Dorian Challoner

IPC: H01Q300

CPC classification number: H01Q1/125 ,  G01C19/42 ,  G01C21/16

Abstract: An apparatus and method, for determining an instrument boresight heading. The apparatus comprises an instrument having a boresight, an elevation positioner for positioning the elevation of the instrument boresight having an elevation axis, an azimuth positioner for positioning the azimuth of the instrument boresight having an azimuth axis and a sensor including a gyro having a sensitive axis. The method comprises recording a first output of a gyro of an azimuth positioner having an instrument boresight azimuth heading in a first position, rotating the azimuth positioner to a second position, recording a second output of the gyro and rotating the azimuth positioner to a third position, recording a third output of the gyro and determining the azimuth heading relative to true north from the first, second and third output.

公开(公告)号：US06577268B1

公开(公告)日：2003-06-10

申请号：US10176295

申请日：2002-06-20

Applicant: Joseph P. Mustard ,  Diem-Trang T. Le

Inventor： Joseph P. Mustard ,  Diem-Trang T. Le

IPC: H01Q300

CPC classification number: H01Q3/005

Abstract: The present invention provides an outboard test facility that is operable for testing a ship's direction finding antenna system in all directions as the ship circles while receiving test signals from the outboard test facility. The test facility provides a computer control operable for monitoring and storing signal power produced by any selected patch interconnections between a plurality of antennas, a plurality of radio frequency amplifiers and a plurality of signal generators at the outboard test facility. The computer control permits a single operator to monitor a signal analyzer to determine the optimum signal power for each of a list of signal frequencies to be broadcast to the ship based on the selected patch interconnection.

Abstract translation: 本发明提供了一种舷外测试设备，其可操作用于在从外部测试设备接收测试信号的同时，在船舶圆周的所有方向上测试船舶的测向天线系统。 测试设施提供计算机控制器，其可操作用于监视和存储在外侧测试设施处的多个天线，多个射频放大器和多个信号发生器之间的任何选定的补丁互连产生的信号功率。 计算机控制允许单个操作者监测信号分析器，以基于所选择的补丁互连来确定要广播到船舶的信号频率列表中的每一个的最佳信号功率。

公开(公告)号：US06567052B1

公开(公告)日：2003-05-20

申请号：US09718973

申请日：2000-11-21

Applicant: Weizheng Wang ,  Donald C. D. Chang ,  Ming Chang ,  Ying Feria

Inventor： Weizheng Wang ,  Donald C. D. Chang ,  Ming Chang ,  Ying Feria

IPC: H01Q300

CPC classification number: H01Q1/28 ,  H01Q3/02

Abstract: A stratospheric platform communication system (10) having antenna boresight angles (EL, AZ) that can be adjusted by an adjustable payload antenna (40) according to the requirements of a specific application. The present invention provides an efficient use of available resources by allowing platform systems (10) and GEO satellite systems to share the radio frequency spectrum without interference, and improves the coverage area provided by a stratospheric platform system by allocating stratospheric platforms (12) to specific coverage areas in combination thereby increasing coverage capacity in high traffic areas.

Abstract translation: 具有可根据特定应用的要求由可调节有效载荷天线（40）调节的具有天线视轴角（EL，AZ）的平流层平台通信系统（10）。 本发明通过允许平台系统（10）和GEO卫星系统在没有干扰的情况下共享无线电频谱来提供可用资源的有效使用，并且通过将平流层平台（12）分配给特定的平流层平台系统来提高由平流层平台系统提供的覆盖区域 覆盖区域相结合，从而提高高交通区域的覆盖能力。

公开(公告)号：US06559799B2

公开(公告)日：2003-05-06

申请号：US09936013

申请日：2001-09-07

Applicant: Takahisa Aoyama ,  Katsuhiko Hiramatsu

Inventor： Takahisa Aoyama ,  Katsuhiko Hiramatsu

IPC: H01Q300

CPC classification number: H04B7/04 ,  H01Q3/267 ,  H04B17/20

Abstract: The recording section 114 records a highly reliable amount of correction for phase rotation, which is obtained in advance by a sufficient number of samples before commencement of communications. The measurement section 112 measures the amount of phase rotation of the known signals, and the comparison section 113 compares the measured amount of phase rotation with the amount of correction and renews the amount of correction from time to time during communications on the basis of the results of the comparison.

公开(公告)号：US06441784B1

公开(公告)日：2002-08-27

申请号：US09608835

申请日：2000-06-30

Applicant: Oronzo Dino Flore ,  Paul Petrus

Inventor： Oronzo Dino Flore ,  Paul Petrus

IPC: H01Q300

CPC classification number: H04B7/0617 ,  H01Q3/2611

Abstract: A method and apparatus for predicting uplink and/or downlink beamforming in a wireless communication system employing an antenna array. The method and apparatus may predict uplink and/or downlink weights as a function of previous uplink and/or downlink weights. An interpolation of a sample of uplink weights and/or downlink weights is used to predict a future uplink or downlink weight.

Abstract translation: 一种用于在采用天线阵列的无线通信系统中预测上行链路和/或下行链路波束成形的方法和装置。 该方法和装置可以根据先前的上行链路和/或下行链路权重来预测上行链路和/或下行链路权重。 使用上行链路加权和/或下行链路加权的样本的插值来预测未来的上行链路或下行链路权重。