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公开(公告)号：US5035375A
公开(公告)日：1991-07-30
申请号：US286436
申请日：1988-12-19
CPC分类号： F41G7/2266 , F41G7/2286 , F41G7/2293 , F41G7/32
摘要： A fiber optic radar guided missile system 10 is disclosed which includes a radar receiver 12 disposed in a missile for receiving radar reflections and providing a first optical signal in response thereto. An optical receiver 14 is disposed at a launcher for receiving the first optical signal and for providing a set of electrical signals in response thereto. A fiber optic link 32 is connected between the missile and the launcher for communicating the first optical signal from the radar receiver 12 to the optical receiver 14.In a specific embodiment, the invention 10 includes a first system 12 disposed in a missile for receiving radar reflections which includes only an antenna 16 for receiving radar reflections, a radar seeker 18 for providing a first electrical in response to the received radar reflections, and a first fiber optic transmitter 26 for converting the first electrical signal into a first optical signal. An optical receiver 14 is located at a launcher for receiving the first optical signal and for providing a set of electrical signals in response thereto. The optical receiver 14 at the launcher includes a first fiber optic receiver 48 for converting the first optical signal into a second electrical signal and a signal processor 56 for processing the second electrical signal and providing radar output data. A fiber optic link 32 is provided for communicating the first optical signal from the radar receiver 12 to the optical receiver 114 at the launcher and missile commands from the launcher to the missile.
摘要翻译： 公开了一种光纤雷达制导导弹系统10，其包括设置在用于接收雷达反射并且响应于此的第一光信号的导弹中的雷达接收器12。 光接收器14设置在发射器处，用于接收第一光信号并响应于此提供一组电信号。 导弹和发射器之间连接有光纤链路32，用于将第一光信号从雷达接收机12传送到光接收机14.在具体实施例中，本发明10包括设置在用于接收雷达的导弹中的第一系统12 仅包括用于接收雷达反射的天线16的反射，用于响应于所接收的雷达反射而提供第一电的雷达探测器18和用于将第一电信号转换为第一光信号的第一光纤发射器26。 光接收器14位于发射器处，用于接收第一光信号并响应于此提供一组电信号。 发射器处的光接收器14包括用于将第一光信号转换成第二电信号的第一光纤接收器48和用于处理第二电信号并提供雷达输出数据的信号处理器56。 提供光纤链路32，用于在发射器处将第一光信号从雷达接收机12传送到光接收器114，并从发射器向导弹发射导弹命令。
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2.发明授权Ultra-high speed light activated microwave switch/modulation using photoreactive effect 失效超高速光激活微波开关/调制采用光反应效应
公开(公告)号：US5055810A
公开(公告)日：1991-10-08
申请号：US576140
申请日：1990-08-29
IPC分类号： H01L31/108 , H01P1/15 , H04B10/152
CPC分类号： H01L31/108 , H01P1/15 , H04B2210/006
摘要： The RF/microwave switch/modulator uses an optically controlled diode 20. The reactance of the diode may be varied by varying the illumination intensity. In this fashion, the photodiode in conjunction with an external circuit can switch or modulate a microwave signal by varying the reactance of the diode using a laser light source or the like. The bias voltage may be varied to electronically tune the diode so that the microwave frequency of operation can be electronically controlled.
摘要翻译： RF /微波开关/调制器使用光控二极管20.可以通过改变照明强度来改变二极管的电抗。 以这种方式，与外部电路结合的光电二极管可以通过使用激光光源等改变二极管的电抗来切换或调制微波信号。 可以改变偏置电压以电子调谐二极管，使得微波操作频率可以被电子控制。
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3.发明授权
公开(公告)号：US4832433A
公开(公告)日：1989-05-23
申请号：US948339
申请日：1986-12-31
CPC分类号： H04B10/806 , H01Q3/2676
摘要： The corporate feed network employs light emitting opto-electronic components, such as laser diodes (12), connected together in a string (14) for distributing RF, microwave, MMW, digital signals, and pulse modulated light. Each diode provides two ports or facets which are coupled to optical fibers (16, 18) to connect to an active phased array antenna, for example. The diodes are selected in number and impedance to provide a good wideband impedance match to the RF/microwave/MMW/digital driving source. Multiple series strings of diodes may be employed, connected in parallel for larger corporate feed structures.
摘要翻译： 公司饲料网络采用发光光电子部件，例如用于分配RF，微波，MMW，数字信号和脉冲调制光的串（14）连接在一起的激光二极管（12）。 例如，每个二极管提供耦合到光纤（16,18）以连接到有源相控阵天线的两个端口或小面。 二极管的数量和阻抗被选择，以提供与RF /微波/ MMW /数字驱动源的良好的宽带阻抗匹配。 可以使用多个串联串联的二极管，并联连接用于较大的公司进料结构。
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4.发明授权Electronically tuneable fiber-optic receiver for narrow band microwave signal reception 失效用于窄带微波信号接收的电子可调光纤接收器
公开(公告)号：US5029240A
公开(公告)日：1991-07-02
申请号：US371567
申请日：1989-06-26
IPC分类号： H01L31/10 , H01L31/108 , H03J3/18 , H04B10/04 , H04B10/06 , H04B10/14 , H04B10/158 , H04B10/26 , H04B10/28 , H04J14/02 , H04J99/00
CPC分类号： H01L31/108 , H04B10/6932 , H04B10/6973 , H04J14/02
摘要： The optical receiver has a photodiode (10) which is reverse biased by a voltage supply (14). The voltage supply provides a variable bias voltage determined by a control unit (16) and the photodiode is matched to the load (22) by an impedance matching circuit (12). The photodiode exhibits large capacitance changes over a range of bias voltages and may be implemented using a Schottky barrier or P.sup.+ N photodiode. By changing the bias voltage, the photodiode capacitance changes to vary the tuned frequency of the receiver. The matching circuit cancels the reactive component of the photodiode impedance and matches the resistive component to the load. The photodiode may have a doping profile in which an intrinsic or lightly doped region of width greater than the average photon penetration depth is located next to the junction. After the intrinsic region, the doping profile may be selected to achieve linear tuning. This doping profile gives linear tuning without sacrificing photodiode conversion efficiency.
摘要翻译： 光接收器具有由电压源（14）反向偏置的光电二极管（10）。 电压源提供由控制单元（16）确定的可变偏置电压，并且光电二极管通过阻抗匹配电路（12）与负载（22）匹配。 光电二极管在偏置电压范围内显示出大的电容变化，并且可以使用肖特基势垒或P + N光电二极管来实现。 通过改变偏置电压，光电二极管电容变化以改变接收机的调谐频率。 匹配电路消除光电二极管阻抗的无功分量，并将电阻分量与负载相匹配。 光电二极管可以具有掺杂分布，其中宽度大于平均光子穿透深度的本征或轻掺杂区域位于接合点旁边。 在本征区域之后，可以选择掺杂分布以实现线性调谐。 该掺杂曲线提供线性调谐，而不牺牲光电二极管的转换效率。
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5.发明授权Method and apparatus using variations in power modulation to determine an interfering mobile terminal 有权使用功率调制变化来确定干扰移动终端的方法和装置公开(公告)号：US07155168B2
公开(公告)日：2006-12-26
申请号：US10022981
申请日：2001-12-17
IPC分类号： H04B17/00
CPC分类号： H04B7/18508 , H04W52/08
摘要： A method and apparatus for identifying which one of a plurality of mobile terminals in communication with a ground-based base station, via a transponded satellite, is causing interference with a non-target satellite orbiting in a vicinity of the transponded satellite. The method involves using the base station to sequentially check each of the mobile terminals to identify which one is causing the interference. The check is made by the base station commanding each mobile terminal to modulate the power level of its transmitted signals and then checking with an operator of the interfered with non-target satellite to see if the interference condition has changed. Once the mobile terminal causing the interference condition is identified, the base station can command the mobile terminal to reduce its transmit power accordingly.
摘要翻译： 一种用于识别通过转发卫星与地面基站进行通信的多个移动终端中的哪一个的方法和装置正在对转发卫星周围的非目标卫星进行轨道运动。 该方法包括使用基站顺序地检查每个移动终端以识别哪一个正在引起干扰。 由基站指令每个移动终端对其发射信号的功率电平进行检查，然后与受干扰的非目标卫星的操作者进行检查，以查看干扰状况是否改变。 一旦确定了造成干扰状况的移动终端，则基站可以命令移动终端相应地降低其发射功率。
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公开(公告)号：US06417803B1
公开(公告)日：2002-07-09
申请号：US09825575
申请日：2001-04-03
IPC分类号： H01Q300
CPC分类号： H01Q1/1257 , G01S3/20 , H01Q1/28
摘要： An apparatus and method for correcting antenna beam misalignment between a transmit antenna and a receive antenna on a mobile platform such as an aircraft. The beam alignment method makes use of sequential lobing to determine the pointing angles in azimuth and elevation of a receive beam received by the receive antenna. For the transmit antenna, sequential lobing is used for the transmit antenna beam transmitted to a transponded satellite and then to a ground station. The ground station performs received signal strength indicator (RSSI) measurements and transmits these measurements back to the aircraft 16 via the target satellite. From these measurements, the beam misalignment between the receive and transmit antenna beams, both in azimuth and elevation, can be determined and a correction applied to the transmit antenna. The beam alignment procedure of the present invention can be implemented without interfering with normal use of the transmit and receive antennas and further ensures that interference with satellites adjacent to the target satellite will not occur during return link transmissions from the aircraft to the ground station.
摘要翻译： 一种用于校正诸如飞行器的移动平台上的发射天线和接收天线之间的天线波束未对准的装置和方法。 光束对准方法利用顺序波纹来确定由接收天线接收的接收波束的方位角和仰角的指向角度。 对于发射天线，顺序波峰被用于发送到转发卫星然后到地面站的发射天线波束。 地面站执行接收信号强度指示（RSSI）测量，并通过目标卫星将这些测量值发送回飞机16。 从这些测量可以确定方位角和仰角之间的接收和发射天线波束之间的波束未对准，并且将校正应用于发射天线。 可以实现本发明的光束对准过程，而不干扰发射和接收天线的正常使用，并进一步确保在从飞行器到地面站的返回链路传输期间不会发生与目标卫星相邻的卫星的干扰。
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7.发明授权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：US09306657B2
公开(公告)日：2016-04-05
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 method of providing a communication link for a mobile platform. The method may involve generating a single beam and controlling the single beam to simultaneously generate first and second communication lobes from the single beam, with the first communication lobe being steered to communicate with a first base transceiver station (BTS). The method may further involve simultaneously using the second communication lobe to communicate with the second BTS and fading out the first lobe so that communication with the mobile platform is transferred to the second BTS.
摘要翻译： 一种为移动平台提供通信链路的方法。 该方法可以包括生成单个波束并且控制单个波束以同时从单个波束产生第一和第二通信波瓣，其中第一通信波瓣被引导以与第一基站收发器（BTS）进行通信。 该方法可以进一步包括同时使用第二通信波瓣与第二BTS进行通信，并使第一波瓣衰落，使得与移动平台的通信被传送到第二BTS。
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公开(公告)号：US20100088924A1
公开(公告)日：2010-04-15
申请号：US12251668
申请日：2008-10-15
IPC分类号： F26B21/00
CPC分类号： H01Q1/002
摘要： A blower system to remove precipitation from an antenna may include a blower air plenum extending substantially completely along one side of the antenna. A vent is in communication with the blower air plenum and extends substantially completely along the one side of the antenna to direct an airstream across a surface of the antenna to remove precipitation from the antenna. The vent may include a contour to conform to a contour of the one side of the antenna. The blower system may also include an air compressor to force air into the blower air plenum and out the vent to form the airstream flowing across the surface of the antenna.
摘要翻译： 用于从天线去除沉淀物的鼓风机系统可以包括基本上完全沿着天线的一侧延伸的鼓风机空气室。 排气口与鼓风机空气通风室连通，并且沿着天线的一侧基本上完全延伸，以引导空气流穿过天线的表面，以消除天线的沉淀。 通风口可以包括符合天线一侧轮廓的轮廓。 鼓风机系统还可以包括空气压缩机，以迫使空气进入鼓风机空气通风室并排出通风口以形成流过天线表面的气流。
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公开(公告)号：US20070217355A1
公开(公告)日：2007-09-20
申请号：US11378563
申请日：2006-03-17
IPC分类号： H04Q7/00
CPC分类号： H04L1/0002 , H04B7/18513
摘要： A system and method for communicating information from a base station to one or more user terminals via a forward link to a relay and distribution device is provided. The method includes determining a separate information rate for information to be transmitted from the base station to each of the user terminals. Each information rate is determined to allow successful communication with the respective user terminal and to provide a predetermined amount of link margin above a threshold energy-to-noise ratio (Eb/No) in the forward link. The method additionally includes formatting data received at the base station into a continuous time division multiplexed (TDM) data stream that includes a plurality of data frames to be transmitted to the user terminals. Each data frame is formatted to have the determined information rate of the respective user terminal destine to receive the data frame. The TDM data stream is transmitted using a single carrier of the forward link. Furthermore, the method includes continuously and dynamically adjusting the information rate of subsequent data frames for each user terminal to maintain successful communication and maintain the predetermined amount of margin as operating conditions of each user terminal change.
摘要翻译： 提供了一种用于将信息从基站通过前向链路传送到一个或多个用户终端到中继和分配设备的系统和方法。 该方法包括为从基站发送到每个用户终端的信息确定单独的信息速率。 确定每个信息速率以允许与相应用户终端的成功通信，并且提供高于前向链路中的阈值能量 - 噪声比（Eb / No）的预定量的链路余量。 该方法还包括将在基站处接收的数据格式化成包括要发送给用户终端的多个数据帧的连续时分复用（TDM）数据流。 将每个数据帧格式化为具有相应用户终端确定的信息速率，以达到接收数据帧的目的。 使用前向链路的单载波来发送TDM数据流。 此外，该方法包括连续且动态地调整每个用户终端的后续数据帧的信息速率，以保持成功的通信，并且在每个用户终端的操作条件改变时保持预定量的余量。
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10.发明申请公开(公告)号：US20070026795A1
公开(公告)日：2007-02-01
申请号：US11536111
申请日：2006-09-28
IPC分类号： H04B7/185
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.
摘要翻译： 一种用于管理由具有移动射频（RF）系统的多个飞行器对基于卫星的应答器的访问的系统和方法。 该系统采用基于地面的中央控制系统来管理对基于卫星的应答器的访问，使得所有移动系统的RF信号的总功率谱密度（PSD）在任何时间都不超过由 监管机构防止卫星系统之间的干扰。 这通过用于监测由卫星转发器发送的RF信号的信噪比（Eb / No）的双重控制环路布置来实现。 使用基于地面的控制回路，由此基于地面的中央控制器监视Eb /否并且向飞行器（经由卫星转发器）发送命令以将发送的信号的Eb / No维持在预定范围内。 飞行器的移动系统使用快速扫描角补偿来实现另一个控制回路，以进一步调整发射功率。 该控制回路将来自基于地面的中央控制器的更新之间的指令级别的信号的Eb / No维持在基于卫星的应答器上。
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