-
公开(公告)号：US5594460A
公开(公告)日：1997-01-14
申请号：US556098
申请日：1995-11-09
申请人： Kouichi Eguchi
发明人： Kouichi Eguchi
IPC分类号： G01S3/32 , G01S3/42 , G01S3/44 , H01Q1/18 , H01Q1/34 , H01Q3/08 , H01Q3/26 , H01Q21/00 , H01Q3/00
摘要： A tracking array antenna system is provided. When a signal from the target is received normally, control mode of an AZ axis and an electronic XEL axis is changed over according to whether or not a moving platform is inclined about the XEL axis for detecting inclination of the moving platform. When the moving platform is not inclined, beam-switch (BSW) about the electronic XEL axis is performed, and the beam-switch tracking (BST) about the AZ axis using the result with an angular rate feedback (ARFB) is performed. When the moving platform is inclined, zero rate control (ZRC) about the AZ axis and BST about the electronic XEL axis are performed. In this way, tracking and stabilization are performed without not only the gimbal-lock but also the use of a gyrocompass.
摘要翻译： 提供跟踪阵列天线系统。 当来自目标的信号被正常地接收时，根据移动平台是否围绕XEL轴倾斜以检测移动平台的倾斜度，AZ轴和电子XEL轴的控制模式被切换。 当移动平台不倾斜时，执行关于电子XEL轴的光束开关（BSW），并且使用具有角速率反馈（ARFB）的结果执行关于AZ轴的光束切换跟踪（BST）。 当移动平台倾斜时，执行关于AZ轴的零速率控制（ZRC）和关于电子XEL轴的BST。 以这种方式，跟踪和稳定不仅执行万向锁，而且还使用陀螺罗经。
-
公开(公告)号：US5568535A
公开(公告)日：1996-10-22
申请号：US344100
申请日：1994-11-23
申请人： Eliezer A. Sheffer , Shiv P. Verma
发明人： Eliezer A. Sheffer , Shiv P. Verma
IPC分类号： B60R25/10 , G01S3/32 , G01S5/00 , G01S5/14 , G01S19/35 , G08B25/01 , G08B25/10 , H04M11/00 , H04W4/22 , H04W64/00 , H04M11/04
CPC分类号： H04W64/00 , B60R25/102 , G01S3/325 , G01S5/0009 , G01S5/14 , G08B25/016 , G08B25/10 , H04M11/00 , G08B25/008 , H04W4/22 , H04W76/007
摘要： An alarm system for protecting premises comprises a fully integrated, alarm detecting cellular phone unit which is linked to various sensors in order to detect the sensor outputs. The cellular alarm unit includes, in addition to cellular phone functions, a formatter or processor for generating an emergency signal on detection of a sensor output, the emergency signal including information on the type of emergency detected. The unit is programmed to establish a cellular connection to a remote monitoring station. The connection is wireless at least from the premises to a local cell site. Once connection is established, the emergency signal is transmitted to the monitoring station via the local cell site.
摘要翻译： 用于保护场所的报警系统包括完全集成的报警检测蜂窝电话单元，其连接到各种传感器以便检测传感器输出。 蜂窝报警单元除蜂窝电话功能之外还包括格式器或处理器，用于在检测到传感器输出时产生紧急信号，该紧急信号包括检测到的紧急类型的信息。 该单元被编程为建立到远程监控站的蜂窝连接。 该连接至少从房屋到本地小区站点是无线的。 一旦建立连接，紧急信号就通过本地小区现场发送到监控站。
-
公开(公告)号：US5218367A
公开(公告)日：1993-06-08
申请号：US891805
申请日：1992-06-01
IPC分类号： B60R25/00 , B60R25/10 , G01S3/32 , G01S5/00 , G01S5/14 , G01S19/35 , G08B25/10 , G08G1/13 , H04M11/00 , H04M11/04 , H04W64/00
CPC分类号： H04W64/00 , B60R25/102 , G01S3/325 , G01S5/0009 , G01S5/14 , G08B25/10 , H04M11/00
摘要： A vehicle tracking system makes use of a conventional cellular telephone network including a plurality of fixed cellular transmitter sites each covering a predetermined area. The system includes a plurality of cellular signal processing units for installation at hidden locations in vehicles to be monitored. Each unit is connected to one or more different sensors in the vehicle, at least one of the sensors being a break-in detector for detecting tampering with the vehicle, and to a cellular antenna, and includes a controller for monitoring the sensor outputs and initiating an emergency message transmission to a remote monitoring station in the event of actuation of a sensor. The car processing unit monitors site identifying signals and signal strengths of transmissions from adjacent cellular transmitter sites in an emergency, and the emergency message includes vehicle identifying information, cell site identifying information, and signal strength information which will be dependent on distance from the cell site. The monitoring station includes a computer for determining and displaying an approximate vehicle location from the incoming cell site identifying and signal strength information.
摘要翻译： 车辆跟踪系统利用常规蜂窝电话网络，其包括多个固定蜂窝发射机站点，每个固定蜂窝发射机站点覆盖预定区域。 该系统包括用于安装在待监视的车辆中的隐藏位置的多个蜂窝信号处理单元。 每个单元连接到车辆中的一个或多个不同的传感器，所述传感器中的至少一个是用于检测对车辆的篡改以及蜂窝式天线的入侵检测器，并且包括用于监测传感器输出和启动的控制器 在传感器致动的情况下向远程监控站发送紧急消息。 汽车处理单元在紧急情况下监视来自相邻蜂窝发射机站的发射的站点识别信号和信号强度，并且紧急消息包括车辆识别信息，小区站点识别信息和将依赖于距离小区站点的距离的信号强度信息 。 监控站包括一个计算机，用于从进入的小区站点识别和信号强度信息确定和显示一个近似的车辆位置。
-
公开(公告)号：US4887781A
公开(公告)日：1989-12-19
申请号：US792227
申请日：1985-10-25
摘要： A transmitter for use in an aircraft navigation system, the transmitter comprising a body portion (35) having an end (36, 37) adapted for implanting into the ground and an opposite end fitted with an antenna (38,39), and stabilizing means (41) arranged to be rendered operative on impact of the transmitter with the ground.
摘要翻译： 一种用于飞机导航系统的发射机，所述发射机包括主体部分（35），其具有适于植入地面的端部（36,37）和装配有天线（38,39）的相对端，以及稳定装置 （41），其布置成在所述发射机与地面的冲击下操作。
-
45.发明授权Apparatus for maintaining the orientation of an antenna system with respect to a beacon 失效用于维持天线系统相对于信标的取向的装置
公开(公告)号：US4663631A
公开(公告)日：1987-05-05
申请号：US769101
申请日：1985-08-26
CPC分类号： G01S3/325
摘要： In an apparatus for maintaining the orientation of an antenna system with respect to a beacon, radio signals are received in four quadrants and converted into sum and difference signals, which are transformed in frequency, amplified in an amplifier (6) and detected in a first- and second-phase detector (9, 15) present in a corresponding channel (7, 8) to derive error voltages in first and second time intervals respectively for aligning the antenna system with respect to the beacon. During the tracking mode of the apparatus, the difference and sum signals separately pass in first, second and third, fourth time intervals, respectively. a VCO (21) supplies two orthogonal signals as reference voltages, to the phase detectors. In the tracking mode the VCO driven by a signal derived from the signals obtained in the first channel (7) in the fourth time interval and in the second channel (8) in the third time interval. With a gain control circuit (27) the gain of the amplifier (6) is adjusted in response to signals obtained in the first and the second channels (7, 8) in the said third and fourth time intervals respectively in such a way that the output voltage of the first phase detector (9) in the third and first time interval and that of the second phase detector (15) in the fourth and second time interval are kept constant.
摘要翻译： 在用于维持天线系统相对于信标的方向的装置中，无线电信号被接收在四个象限中，并被转换成在放大器（6）中被放大并在第一个信号中被检测的频率变换的和和信号 和第二相位检测器（9,15）存在于相应的通道（7,8）中以分别导出第一和第二时间间隔中的误差电压，用于相对于信标对准天线系统。 在设备的跟踪模式期间，差分和和信号分别在第一，第二和第三和第四时间间隔中通过。 VCO（21）将两个正交信号作为参考电压提供给相位检测器。 在跟踪模式中，VCO由在第四时间间隔中在第一通道（7）中获得的信号和在第三时间间隔中在第二通道（8）中获得的信号驱动。 利用增益控制电路（27），响应于在所述第三和第四时间间隔中分别在第一和第二通道（7,8）中获得的信号来调节放大器（6）的增益，使得 在第四和第二时间间隔内的第三和第一时间间隔中的第一相位检测器（9）的输出电压和第二相位检测器（15）的输出电压保持恒定。
-
公开(公告)号：US4578679A
公开(公告)日：1986-03-25
申请号：US491939
申请日：1983-05-05
申请人： Gunter Morz
发明人： Gunter Morz
摘要： A method and apparatus for deriving control signals for enabling an antenna to track a signal source and this antenna is operated to produce at least one beam having a maximum on the boresight axis and one beam having a minimum on the boresight axis, by deriving a sum signal associated to the beam having a maximum on the boresight axis and a difference signal associated to the beam having a minimum on the boresight axis, sequentially and cyclically varying the relative phase relationship between the difference and the sum signal among four different phase values, and combining the sum signal with the difference signal for producing signals constituting a source of the control signals for enabling the antenna to track the signal source.
摘要翻译： 一种用于导出用于使天线跟踪信号源的控制信号的方法和装置，并且该天线被操作以产生至少一个在视轴上具有最大值的波束和在视轴上具有最小值的一个波束，通过导出总和 与在视轴上具有最大值的光束相关联的信号和与在远视轴上具有最小值的光束相关联的差分信号，顺序地并循环地改变四个不同相位值之间的差值和和信号之间的相对相位关系，以及 将和信号与差分信号组合，用于产生构成控制信号源的信号，以使天线能够跟踪信号源。
-
公开(公告)号：US4215347A
公开(公告)日：1980-07-29
申请号：US960991
申请日：1978-11-15
摘要： An incoming enemy missile is simulated by pointing the radiation transmitg antenna of a drone missile, regardless of the actual movement of the drone, at the launch site of a friendly intercept missile or other friendly object without changing direction of flight.
摘要翻译： 通过指挥无人驾驶导弹的辐射发射天线，无论无人机的实际运动，在友好拦截导弹或其他友好对象的发射地点，不改变飞行方向，模拟进入的敌方导弹。
-
公开(公告)号：US3757336A
公开(公告)日：1973-09-04
申请号：US3757336D
申请日：1970-07-02
申请人： HUGHES AIRCRAFT CO
发明人： ROSEN H
CPC分类号： G01S3/325
摘要： A satellite communications system comprises signal tracking for a directional antenna by detecting any directional error of the antenna relative to a pilot station, or predetermined offset angle therefrom, to provide phase modulated error signals which are combined with frequency modulated pilot signals radiated by the pilot station in order to pass composite error and pilot signals through a single receive channel including a rotary joint coupler connecting a spinning section and a despun antenna section of a spin-stabilized satellite. Any directional error of the despun antenna about the spin axis of a spinning satellite results in sum and difference signals being produced in the receive feeds of the antenna wherein the magnitude of the difference signal is proportional to the angle of deviation of the antenna pointing direction and the pilot station. The difference signal is phase modulated in an over-coupled, doubletuned, directional filter and combined with the sum signal to produce a composite signal which exhibits amplitude modulation in synchronism with the frequency modulation of the sum signal. The amplitude modulation index is proportional to the difference signal and hence the directional error; and the phase of the amplitude modulation relative to the phase of the frequency modulation indicates the sign of the error. After passing through the rotary coupler, the envelope of the AM signal is detected and compared in a phase detector, with a reference signal derived from the FM of the composite signal. The output of the phase detector is the directional error signal which provides a tracking signal for controlling a despin motor to correct the error in pointing of the antenna.
摘要翻译： 卫星通信系统包括通过检测天线相对于导频站的任何方向误差或其预定偏移角来定向天线的信号跟踪，以提供与由导频站辐射的频率调制导频信号组合的相位调制误差信号 以便通过包括连接旋转部分的旋转接头联接器和自旋稳定卫星的去除天线部分的单个接收通道来传递复合误差和导频信号。 关于旋转卫星的旋转轴的解除天线的任何方向误差导致在天线的接收馈送中产生和和差信号，其中差信号的幅度与天线指向方向的偏离角成正比， 试点站。 差分信号在过耦合双调谐定向滤波器中进行相位调制，并与和信号组合以产生与和信号的频率调制同步的幅度调制的复合信号。 幅度调制指数与差分信号成比例，因此方向误差; 并且相对于频率调制的相位的幅度调制的相位表示误差的符号。 在通过旋转耦合器之后，检测AM信号的包络并在相位检测器中与从复合信号的FM导出的参考信号进行比较。 相位检测器的输出是定向误差信号，其提供用于控制解映射电动机的跟踪信号，以校正天线指向误差。
-
公开(公告)号：US20180160081A1
公开(公告)日：2018-06-07
申请号：US15505241
申请日：2016-09-30
发明人： Guanjiao REN , Shiqian DONG , Ye WANG , Li PU
CPC分类号： H04N7/185 , G01S3/325 , G06T2207/10016 , H04N5/232 , H04N5/23258 , H04N5/2328
摘要： The present invention discloses an information processing method, an electronic device and a computer storage medium. The method is applied to a mobile electronic device, the electronic device is provided with an image collection unit, the image collection unit can carry out image collection, and the method includes: acquiring a first instruction, wherein the first instruction is used for indicating to carry out image collection based on target tracking; responding to the first instruction, and acquiring position information between a target object and the electronic device; acquiring a first parameter according to the position information, and controlling a movement state of the electronic device according to the first parameter, so that the electronic device tracks the target object, wherein the first parameter is a parameter used for controlling the movement state of the electronic device; and acquiring a second parameter according to the position information, and controlling an image collection posture of the image collection unit according to the second parameter, so that the image collection unit can acquire an image satisfying a first condition in a process when the electronic device tracks the target object.
-
公开(公告)号：US09952307B2
公开(公告)日：2018-04-24
申请号：US14840430
申请日：2015-08-31
申请人： Facebook, Inc.
发明人： Hong Gan
IPC分类号： H01Q3/00 , G01S5/02 , G01S3/32 , H01Q3/28 , H01Q3/34 , H01Q3/04 , H01Q3/24 , H01Q3/26 , H01Q21/20
CPC分类号： H01Q3/34 , G01S3/325 , G01S19/49 , H01Q3/04 , H01Q3/24 , H01Q3/26 , H01Q3/28 , H01Q21/205 , H04B7/18506
摘要： A combined electro-mechanical adaptive antenna tracking system for wireless communication between transmitters and receivers moving relative to each other is described. This system enables one or more antenna transceivers on a moving object, such as a high altitude unmanned aerial vehicle (HALE UAV), to simultaneously track one or more separate antenna transceivers on the ground, such as multiple customer premises equipment. The antennas on the moving object are constructed with multiple-subsection phased arrays or may have multiple horns on one rotation axis. Adaptive tracking control logic is applied to synchronize electrical switch and/or mechanical rotation and electrical beamforming for the moving transceivers to track multiple ground transceivers. In one advantageous aspect, an off-the-shelf horn antenna can be used and rotated around only one axis, thereby eliminating the need for expensive two dimensional movement actuators such as gimbals and the need for tracking multiple ground based receivers.
-
-
-
-
-
-
-
-
-
搜索结果
63 条记录 (耗时 0.018 秒)
