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公开(公告)号：US08054224B1
公开(公告)日：2011-11-08
申请号：US12913093
申请日：2010-10-27
IPC分类号： H01Q3/00
摘要： A method and apparatus for creating an antenna system. A configuration for a plurality of antenna cells is selected for an antenna in the antenna system. Each antenna cell in the plurality of antenna cells comprises a plurality of antenna elements having a symmetric arrangement. A portion of antenna elements in the plurality of antenna elements for each antenna cell in the plurality of antenna cells on a substrate is selected to transmit electromagnetic waves.
摘要翻译： 一种用于创建天线系统的方法和装置。 在天线系统中为天线选择多个天线小区的配置。 多个天线单元中的每个天线单元包括具有对称布置的多个天线元件。 选择在基板上的多个天线单元中的每个天线单元的多个天线元件中的天线元件的一部分，以发射电磁波。
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公开(公告)号：US07643441B2
公开(公告)日：2010-01-05
申请号：US11378563
申请日：2006-03-17
IPC分类号： H04B7/185
CPC分类号： H04L1/0002 , H04B7/18513
摘要： A satellite communications method for communicating information from a base station, via a satellite, to one or more user terminals via a single channel of a forward link.
摘要翻译： 一种用于经由卫星经由前向链路的单个信道将信息从基站传送到一个或多个用户终端的卫星通信方法。
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公开(公告)号：US20060270470A1
公开(公告)日：2006-11-30
申请号：US11440300
申请日：2006-05-24
IPC分类号： H04M1/00
CPC分类号： B64C1/1492 , B64D45/0015 , B64D45/0063 , H04B7/18508 , H04K3/43 , H04K3/68 , H04K3/84 , H04K2203/16 , H04K2203/22
摘要： A system and method for preventing use of cellular/PDA devices on-board a mobile platform, such as an aircraft. The system involves using the shielding of the fuselage of the aircraft to provide a first degree of signal-to-noise ratio attenuation of signals from terrestrial wireless access points entering into the interior cabin area of the aircraft. A noise floor lifter subsystem raises the noise floor level within the aircraft to provide a second degree of attenuation of the signal-to-noise ratio of the signal entering the aircraft. By using the shielding of the fuselage, communication of the cellular/PDA devices can be prevented with a lesser degree of noise floor lifting within the aircraft, thus reducing the chance of interference with terrestrial wireless access points and/or interference with important navigation or avionics subsystems within the aircraft.
摘要翻译： 一种用于防止在诸如飞行器的移动平台上使用蜂窝/ PDA设备的系统和方法。 该系统涉及使用飞行器的机身的屏蔽来提供来自进入飞行器的内部舱室区域的地面无线接入点的信号的第一程度的信噪比衰减。 噪声楼层升降器子系统提高飞行器内的噪声基准电平，以提供进入飞行器的信号的信噪比的第二程度的衰减。 通过使用机身的屏蔽，可以在飞机内以较小程度的噪声层提升来防止蜂窝/ PDA设备的通信，从而减少对陆地无线接入点的干扰和/或对重要导航或航空电子设备的干扰 飞机内的子系统。
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24.发明申请Soft handoff method and apparatus for mobile vehicles using directional antennas 有权使用定向天线的移动车辆的软切换方法和装置公开(公告)号：US20060229104A1
公开(公告)日：2006-10-12
申请号：US11314647
申请日：2005-12-21
CPC分类号： H04B7/18506 , H01Q1/28 , H01Q1/283 , H01Q1/3208 , H01Q3/2611 , H04W36/08 , H04W36/18 , H04W84/06
摘要： A system and method for implementing soft handoffs in a cellular communications system on a mobile platform. The system employs an antenna controller in communication with a beam forming network that generates two independently aimable lobes from a single beam. The single beam is radiated by a phased array antenna on the mobile platform. In an Air-to-Ground implementation involving an aircraft, a base transceiver station (BTS) look-up position table is utilized to provide the locations of a plurality of BTS sites within a given region that the aircraft is traversing. The antenna controller controls the beam forming network to generate dual lobes from the single beam that facilitate making a soft handoff from one BTS site to another. In a ground-based application, one lobe of the beam is used to maintain a communications link with one BTS site while a second lobe of the beam is continuously scanned about a predetermined arc to receive RF signals from other BTS sites and to determine when a new BTS site has become available that will provide a higher quality link than the link presently made with the one BTS site. A soft handoff is then implemented from the one BTS site to the new BTS site.
摘要翻译： 一种用于在移动平台上的蜂窝通信系统中实现软越区切换的系统和方法。 该系统采用与波束形成网络通信的天线控制器，其从单个波束产生两个独立的可瞄准波瓣。 单个波束由移动平台上的相控阵天线辐射。 在涉及飞机的空对地实施中，使用基站收发台（BTS）查找位置表来提供飞机正在穿过的给定区域内的多个BTS站点的位置。 天线控制器控制波束形成网络以从单个波束产生双波瓣，这有助于从一个BTS站点到另一个BTS站点的软切换。 在基于地面的应用中，波束的一个波瓣用于维持与一个BTS站点的通信链路，而波束的第二波段围绕预定弧线连续扫描以接收来自其他BTS站点的RF信号，并确定何时 新的BTS站点已经变得可用，将提供比当前使用一个BTS站点的链路更高质量的链路。 然后，从一个BTS站点到新的BTS站点实现软切换。
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25.发明授权公开(公告)号：US06993288B2
公开(公告)日：2006-01-31
申请号：US10197146
申请日：2002-07-17
IPC分类号： H04B7/185
CPC分类号： H04B7/2041
摘要： A method of coordinating communications between ground stations and fixed beam satellites is provided, wherein each beam of a satellite antenna is assigned a color to create a color pattern that matches a frequency reuse pattern for the antenna, thereby using the same frequencies in a different beam with the same color. In operation, a ground station requests a virtual channel number from a resource manager, which sends a virtual channel number that is not used by another ground station within a beam diameter of the requesting ground station. The ground station then determines the position of the satellite, the beam and beam color, and further computes the frequency, polarization, and time slot, among other information, to communicate with the satellite. A method is also provided for managing virtual channels that comprises a network manager that groups ground stations and limits the number of virtual channels per group.
摘要翻译： 提供了一种协调地面站和固定波束卫星之间的通信的方法，其中为卫星天线的每个波束分配颜色以产生与天线的频率复用模式匹配的颜色模式，从而在不同的波束中使用相同的频率 颜色相同。 在操作中，地面站从资源管理器请求虚拟信道号，该资源管理器发送在请求地面站的波束直径内的另一个地面站不使用的虚拟信道号。 然后，地面站确定卫星的位置，波束和波束的颜色，并进一步计算频率，极化和时隙等信息与卫星通信。 还提供了一种用于管理虚拟频道的方法，该虚拟频道包括分组地面站并限制每组的虚拟频道数量的网络管理器。
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公开(公告)号：US5260820A
公开(公告)日：1993-11-09
申请号：US808439
申请日：1991-12-16
CPC分类号： H01Q3/2676 , F41J9/10 , G01S7/38 , H01Q1/30
摘要： One or more decoys (22) are towed by an aircraft (18) to confuse hostile radar. The tow lines (20) to the decoys (22) include fiber optic components which optically transmit to the decoys (22) both radio frequency signals for retransmission to hostile radar (24), and direct current power. The fiber optic components absorb strain forces imposed by towing the decoys (22). Multiple decoys (22) are deployed at varying distances from the aircraft (18) to increase the overall range of frequencies covered by the system, simulate a plurality of false targets, or accomplish angle gate deception. The deception may be accomplished by transmitting signals from the decoys in sequence and can be enhanced by dynamically varying the power levels of the decoy transmitting antennas. The fiber optic components may be separate optical fibers deployed separately or joined together for simultaneous deployment. The preferred configuration is a single optical fiber with coaxial inner and outer cores. The decoy preferably has a transmitting antenna in the form of a simulated biconical dipole. In one embodiment, both halves of the dipole are simulated by a set of fins. In another embodiment, the forward half is simulated by a truncated cone.
摘要翻译： 一个或多个诱饵（22）被飞机（18）拖曳以混淆敌对雷达。 到诱饵（22）的牵引线（20）包括光传输到诱饵（22）的光纤部件，两个射频信号用于重发到敌对雷达（24）和直流电力。 光纤元件吸收由诱饵（22）施加的应变力。 多个诱饵（22）部署在与飞机（18）不同的距离处，以增加系统覆盖的频率的总体范围，模拟多个假目标，或完成角门欺骗。 可以通过依次从诱饵传送信号来实现欺骗，并且可以通过动态地改变诱饵发射天线的功率电平来增强欺骗。 光纤组件可以是单独部署的或连接在一起以用于同时部署的单独光纤。 优选的配置是具有同心的内核和外核的单个光纤。 诱饵优选具有模拟双锥偶极子形式的发射天线。 在一个实施例中，偶极子的两半由一组翅片模拟。 在另一个实施例中，前半部分由截头锥体模拟。
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公开(公告)号：US5013971A
公开(公告)日：1991-05-07
申请号：US360491
申请日：1989-07-21
CPC分类号： H05B33/0851 , H01S5/06804 , H05B33/0854 , H01S5/0617
摘要： The optical power emitted from a light energy producing diode is stabilized over temperature using a simple bias circuit consisting of a voltage source with a series resistance or a current source with a shunt resistance. The bias circuit resistance is equal to the slope of the bias line formed by the constant optical power bias points of the diode plotted on a voltage versus current graph. The voltage source or current source value in the bias circuit is equal to the zero current or zero voltage intercept value, respectively.
摘要翻译： 使用由具有串联电阻的电压源或具有分流电阻的电流源组成的简单偏置电路，由光能产生二极管发射的光功率在温度下稳定。 偏置电路电阻等于由二极管的恒定光功率偏置点形成的偏置线的斜率，绘制在电压对电流图上。 偏置电路中的电压源或电流源值分别等于零电流或零电压截距值。
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公开(公告)号：US07630683B2
公开(公告)日：2009-12-08
申请号：US11536111
申请日：2006-09-28
IPC分类号： H04B7/19
CPC分类号： H04B7/18506 , H04B7/18508 , H04B7/18513 , H04W52/08 , H04W52/283
摘要： A system and method for managing access to a satellite-based transponder by a plurality of aircraft each having a mobile radio frequency (RF) system. The system employs a ground-based, central control system for managing access to the satellite-based transponder so that the aggregate power spectral density (PSD) of the RF signals of all the mobile systems does not exceed, at any time, limits established by regulatory agencies to prevent interference between satellite systems. This is accomplished by a dual control loop arrangement for monitoring the signal-to-noise ratio (Eb/No) of the RF signal transmitted by the satellite-based transponder. A ground-based control loop is used whereby a ground-based central controller monitors the Eb/No and transmits commands to the aircraft (via the satellite transponder) to maintain the Eb/No of the transmitted signal within a predetermined range. A fast scan angle compensation is used by the mobile system of the aircraft to implement another control loop to further adjust the transmit power. This control loop maintains the Eb/No of the signal transmitted to the satellite-based transponder at the commanded level inbetween updates from the ground-based central controller.
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公开(公告)号：US07454202B2
公开(公告)日：2008-11-18
申请号：US10915170
申请日：2004-08-10
IPC分类号： H04Q7/20
CPC分类号： H04B7/18508
摘要： A method is provided for providing communication and surveillance services to a mobile platform. The method includes substantially simultaneously communicating between a plurality ground based antennas and a plurality of satellites. Particularly, each ground based antenna communicates with a related one of the satellites. The method additionally includes substantially simultaneously communicating between each of the satellites and at least one multi-faceted electronically scanned antenna included in a mobile platform communication system onboard a mobile platform.
摘要翻译： 提供了一种用于向移动平台提供通信和监视服务的方法。 该方法包括基本上同时在多个基于地面的天线和多个卫星之间进行通信。 特别地，每个地面天线与相关的一颗卫星通信。 该方法还包括在每个卫星和包括在移动平台上的移动平台通信系统中的至少一个多面电子扫描天线之间基本上同时进行通信。
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公开(公告)号：US07136621B2
公开(公告)日：2006-11-14
申请号：US11241119
申请日：2005-09-30
IPC分类号： H04B7/19
CPC分类号： H04B7/18506 , H04B7/18508 , H04B7/18513 , H04W52/08 , H04W52/283
摘要： A system and method for managing access to a satellite-based transponder by a plurality of aircraft each having a mobile radio frequency (RF) system. The system employs a ground-based, central control system for managing access to the satellite-based transponder so that the aggregate power spectral density (PSD) of the RF signals of all the mobile systems does not exceed, at any time, limits established by regulatory agencies to prevent interference between satellite systems. This is accomplished by a dual control loop arrangement for monitoring the signal-to-noise ratio (Eb/No) of the RF signal transmitted by the satellite-based transponder. A ground-based control loop is used whereby a ground-based central controller monitors the Eb/No and transmits commands to the aircraft (via the satellite transponder) to maintain the Eb/No of the transmitted signal within a predetermined range. A fast scan angle compensation is used by the mobile system of the aircraft to implement another control loop to further adjust the transmit power. This control loop maintains the Eb/No of the signal transmitted to the satellite-based transponder at the commanded level inbetween updates from the ground-based central controller.
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