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1. 发明授权

US10571587B2 Wavefield reconstruction 有权
公开(公告)号：US10571587B2
公开(公告)日：2020-02-25
申请号：US15320339
申请日：2015-06-24
申请人： PGS Geophysical AS
发明人： Paolo Terenghi
IPC分类号： G01S1/38 , G01V1/38 , G01V1/28
摘要： Wavefield reconstruction may include reconstructing a wavefield at a location away from a seismic receiver based on seismic data sampled from the seismic receiver, a vector of model coefficients comprising a scattering potential, and at least one of a mapping matrix comprising a dictionary of Green's functions and an operator defined by a combination of a number of functions.

2. 发明授权

US06864839B2 Radio transceiver and method of controlling direction of radio-wave emission 有权
标题翻译：无线电收发机和无线电波发射方向的控制方法
公开(公告)号：US06864839B2
公开(公告)日：2005-03-08
申请号：US10413421
申请日：2003-04-14
申请人： Hajime Hamada , Michiharu Nakamura , Yasuyuki Oishi
发明人： Hajime Hamada , Michiharu Nakamura , Yasuyuki Oishi
IPC分类号： G01S19/25 , G01S1/38 , G01S3/14 , G01S3/46 , G01S5/02 , H01Q3/26 , H04B7/06 , H04B7/08 , H04B7/10 , H04W16/28 , H04W64/00 , H04W88/02 , H04W88/08 , H04W92/10 , G01S5/04
CPC分类号： H04B7/0617 , G01S1/38 , G01S3/14 , G01S3/46 , G01S5/0226 , H04B7/0626
摘要： Disclosed is a method of controlling direction of radio-wave emission of a base-station transmitter which emits radio waves upon providing the radio waves with directivity in the direction of a receiver. Two antennas of a base station that are disposed at different positions transmit first and second signals that have been spread by mutually orthogonal spreading codes. A mobile station has a phase detector for receiving the first and second signals transmitted from respective ones of the antennas and obtaining a phase difference between these signals, and a direction estimator for calculating the direction of the mobile station, as seen from the base station, based upon the phase difference and for feeding back a signal representing the calculated direction from the mobile station to the base station. The transmitter of the base station transmits data toward the receiver in the calculated direction using a directional antenna.
摘要翻译：公开了一种在向接收机的方向提供无线电波的基站发射机的无线电波发射的方向上发射无线电波的方法。设置在不同位置的基站的两个天线发送已经通过相互正交的扩展码扩展的第一和第二信号。移动站具有相位检测器，用于接收从相应天线发送的第一和第二信号，并获得这些信号之间的相位差，以及用于计算移动站的方向的方向估计器，从基站看，基于相位差，并将表示所计算的方向的信号从移动台反馈到基站。基站的发射机使用定向天线在计算出的方向上向接收机发送数据。

3. 发明授权

US4761795A Receiver for bandspread signals 失效
标题翻译：接收机用于带宽信号
公开(公告)号：US4761795A
公开(公告)日：1988-08-02
申请号：US4467
申请日：1987-01-20
申请人： Wolfgang Beier
发明人： Wolfgang Beier
IPC分类号： H04B1/707 , G01S1/38
CPC分类号： H04B1/707
摘要： An improved receiver for modulated bandspread carrier signals is disclosed. The invention includes an antenna for intercepting a plurality of modulated carrier signals bandspread at a first clock rate; a radio frequency section in communication with the antenna for selecting a received signal from the plurality of signals; and an intermediate frequency section in communication with the radio frequency section for converting the received signal to an intermediate frequency signal. The intermediate frequency signal is digitized and multiplied by a pseudo-random code stored in a first memory for demodulation. Successive demodulation products are added, stored and used to provide in-phase (I) and quadrature (Q) signals. Means are provided to for utilizing the I and Q signals to control the rate and the timing of the multiplication of the digitized signal with the pseudo-random code stored in the first memory.
摘要翻译：公开了一种用于调制带宽载波信号的改进的接收机。本发明包括用于以第一时钟速率截取多个调制载波信号带宽的天线; 与所述天线通信的用于从所述多个信号中选择接收信号的射频部分; 以及与射频部分通信的用于将接收信号转换为中频信号的中频部分。将中频信号数字化并乘以存储在第一存储器中用于解调的伪随机码。连续解调产品被添加，存储并用于提供同相（I）和正交（Q）信号。提供了用于利用I和Q信号来控制数字化信号与存储在第一存储器中的伪随机码相乘的速率和定时的装置。

4. 发明授权

US4719469A Direction-determining system 失效
标题翻译：方向决定系统
公开(公告)号：US4719469A
公开(公告)日：1988-01-12
申请号：US929935
申请日：1986-11-12
申请人： Wolfgang Beier , Helmut Graf
发明人： Wolfgang Beier , Helmut Graf
IPC分类号： G01S1/00 , G01S3/48 , G01S19/36 , G01S1/38
CPC分类号： G01S19/36 , G01S3/48
摘要： A direction determining system having a Global Positioning System (GPS) receiver, a linear antenna array and a fast switching facility, the linear antenna array comprised of at least two antenna elements and the GPS receiver including two Costas Loops. The fast switching facility permits an input signal received by the two antenna elements to be processed and alternately supplied to the Costas Loops in synchronism for measuring the phases of the input signals received nearly simultaneously. The phase difference between the output signals of the two Costas Loops is measured in a phase meter and the pointing angle of the linear antenna array relative to the direction of a GPS satellite is determined by interferometry.
摘要翻译：具有全球定位系统（GPS）接收机，线性天线阵列和快速切换设备的方向确定系统，由至少两个天线元件组成的线性天线阵列和包括两个科斯塔斯环路的GPS接收机。快速切换设备允许由两个天线元件接收的输入信号被处理并且同步地交替地提供给科斯塔斯环路以测量几乎同时接收的输入信号的相位。两个科斯塔环路的输出信号之间的相位差在相位计中测量，线性天线阵列相对于GPS卫星的方向的指向角由干涉测量确定。

5. 发明授权

US4591861A Doppler VOR 失效
标题翻译：多普勒VOR
公开(公告)号：US4591861A
公开(公告)日：1986-05-27
申请号：US589970
申请日：1984-03-15
申请人： Werner Kautz
发明人： Werner Kautz
IPC分类号： G01S1/38 , G01S1/40 , G01S1/44
CPC分类号： G01S1/40
摘要： In a doppler VOR, a plurality of antennas (1) are arranged equidistantly on a circle (20). Two opposite antenna pairs on the circle are simultaneously activated by a commutator (13) in a manner to simulate as uniform a rotation of two opposite antennas as possible. Reciprocal power dividers (12) are disposed in the lines (15) between the commutator and the antennas. They couple out a given portion of the transmitter signal and transfer it to the two next antennas but one (I, V) in relation to an active antenna (III). These two antennas (I, V), the active antenna (III), and the two intermediate antennas (II, IV), which act as parasitic elements, form an antenna group. Since two adjacent antennas are active simultaneously, two antenna groups are active simultaneously. Their radiation patterns are approximately elliptical. The portion of the extracted energy and the phase shift produced by the RF lines are so chosen that a user--due to the superposition of the two elliptical radiation patterns--sees an approximately circular radiation pattern in all spatial directions.
摘要翻译：在多普勒VOR中，多个天线（1）等距地布置在圆（20）上。圆的两个相对的天线对由换向器（13）同时激活，以便尽可能模拟两个相对的天线的均匀旋转。互换功率分配器（12）设置在换向器和天线之间的线路（15）中。它们耦合出发射机信号的给定部分并将其传送到两个下一个天线，而相对于有源天线（III）传送一个（I，V）。作为寄生元件的这两个天线（I，V），有源天线（III）和两个中间天线（II，IV）形成天线组。由于两个相邻天线同时有效，所以两个天线组同时有效。它们的辐射方向近似椭圆形。提取的能量的部分和由RF线产生的相移被选择为使得用户由于两个椭圆辐射图案的叠加而在所有空间方向上看到近似圆形的辐射图案。

6. 发明授权

US4412223A Antenna array with element isolation in the coupling network 失效
标题翻译：耦合网络中具有元件隔离的天线阵列
公开(公告)号：US4412223A
公开(公告)日：1983-10-25
申请号：US282320
申请日：1981-07-10
申请人： Werner Kautz
发明人： Werner Kautz
IPC分类号： G01S1/38 , G01S1/40 , H01Q1/52 , H01Q3/24 , H01Q21/06
CPC分类号： H01Q3/24 , G01S1/40 , H01Q1/523
摘要： To isolate adjacent elements of an antenna array from each other, each feeder contains a power divider with four terminals, two of which are connected to the power dividers associated with the adjacent elements. The power dividers feed r.f. energy to the inactive elements in such a way that the latter no longer act as parasitic elements. The r.f. power dividers are so designed that three is a mismatch when looking from the antenna toward the power divider. This gives a further improvement in the isolation between adjacent antennas.
摘要翻译：为了将天线阵列的相邻元件相互隔离，每个馈电器包含具有四个端子的功率分配器，其中两个连接到与相邻元件相关联的功率分配器。功率分配器馈入r.f. 能量以非活性元件的方式使得后者不再充当寄生元件。 r.f. 功率分配器被设计成当从天线朝向功率分配器观看时，三个是不匹配的。这进一步改善了相邻天线之间的隔离。

7. 发明授权

US4197542A Radio navigation system 失效
标题翻译：无线电导航系统
公开(公告)号：US4197542A
公开(公告)日：1980-04-08
申请号：US892381
申请日：1978-03-31
申请人： Gunter Hofgen
发明人： Gunter Hofgen
IPC分类号： G01S1/38 , G01S1/46 , G01S3/10
CPC分类号： G01S3/10 , G01S1/46
摘要： An electronic navigation system ground station, which may be either an omni-range beacon (such as VOR) or a passive direction finder. A circular array of antenna elements has a feed arrangement which includes switched programming of at least one discrete set of phase shifters to effect successively changed phase-rotation fields for minimizing the adverse effects of multipath signals between the ground station and a remote station, aboard an aircraft for example.
摘要翻译：电子导航系统地面站，其可以是全向信标（例如VOR）或被动取向器。天线元件的圆形阵列具有馈送装置，其包括至少一个离散的移相器组的切换编程，以实现连续改变的相位旋转场，以最小化地面站和远程站之间的多径信号的不利影响，飞机为例。

8. 发明授权

US4063242A Doppler navigation system with reference signal source diversity 失效
标题翻译：多普勒导航系统具有参考信号源多样性
公开(公告)号：US4063242A
公开(公告)日：1977-12-13
申请号：US752537
申请日：1976-12-20
申请人： Francis G. Overbury , Paul Barton
发明人： Francis G. Overbury , Paul Barton
IPC分类号： G01S1/38 , H04B7/00
CPC分类号： G01S1/38
摘要： A Doppler Radio Navigation beacon with multi-element reference and main commutated arrays. The reference signal is programmed among the reference array elements irregularly to provide spatial diversity to the reference signal to eliminate or substantially reduce reference masking effects in certain multi-path situations (as observed at a remote receiving station such as on an aircraft on landing approach deriving angle information from said beacon). A similar irregular element excitation program is imposed on the normal array preserving coherence in the relative radiator movement (during commutation) between reference and main arrays.
摘要翻译：具有多元素参考和主换向阵列的多普勒无线电导航信标。参考信号被不规则地编程在参考阵列元件中以向参考信号提供空间分集以消除或基本上减少某些多路径情况下的参考屏蔽效应（如在远程接收站处观察到的，例如在着陆方法导出的飞机上来自所述信标的角度信息）。在参考和主阵列之间的相对辐射器运动（换向期间）的正常阵列保持相干性上施加了类似的不规则元素激励程序。

9. 发明授权

US3864680A Array antenna for radiating doppler coded pattern using phase control 失效
标题翻译：使用相位控制放大多普勒编码图案的阵列天线
公开(公告)号：US3864680A
公开(公告)日：1975-02-04
申请号：US34750773
申请日：1973-04-03
申请人： HAZELTINE CORP
发明人： HANNAN PETER W
IPC分类号： G01S1/38 , G01S1/40 , H01Q3/34
CPC分类号： G01S1/40 , H01Q3/34
摘要： Disclosed are array antenna systems for radiating wave energy signals in a Doppler coded pattern. These systems include an array of antenna elements, means for supplying wave energy signals to the elements and means for controlling the phase of the wave energy signals supplied so that wave energy signals radiated by adjacent pairs of elements have a direction of phase reinforcement which is constantly changing and no two pairs of elements in the array have the same direction of phase reinforcement at the same instant of time. The invention may be applied to many array configurations including circular, cylindrical, linear and planar arrays.
摘要翻译：公开了用于以多普勒编码模式辐射波能量信号的阵列天线系统。这些系统包括天线元件阵列，用于向元件提供波能信号的装置和用于控制提供的波能信号的相位的装置，使得由相邻元件对辐射的波能信号具有恒定的相位增强方向阵列中的两对元素在相同时刻具有相同方向的相位强化。本发明可以应用于包括圆形，圆柱形，线性和平面阵列的许多阵列配置。

10. 发明授权

US3670337A Radio navigation beacon utilizing a commutator which supplies radio frequency in succession to several aerials 失效
标题翻译：无线电导航信标使用提供无线电频率的一个交换机，用于多个业务
公开(公告)号：US3670337A
公开(公告)日：1972-06-13
申请号：US3670337D
申请日：1970-01-21
申请人： INT STANDARD ELECTRIC CORP
发明人： EARP CHARLES WILLIAM , OVERBURY FRANCIS GILES
IPC分类号： G01S1/38 , G01S1/40 , G01S1/16
CPC分类号： G01S1/40
摘要： A radio navigation beacon is provided having a linear array of equally spaced aerials and means which commutate radio-frequency to each said aerial in succession so as to produce bi-directional constant-velocity scanning of the array. Further means including an aerial for radiating radio-frequency energy of a frequency which differs by a fixed amount from the radio frequency which is commutated to the array. The sign of frequency difference is changed at each half period of commutation to the array.
摘要翻译：提供具有等间距天线的线性阵列的无线电导航信标，以及将射频连续地换向每个所述天线的装置，以便产生阵列的双向恒定速度扫描。还包括用于辐射频率与从阵列换向的射频相差固定量的射频能量的天线。频率差的符号在换向到阵列的每个半周期改变。

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