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1. 发明授权

US4543579A Circular polarization antenna 失效
标题翻译：圆极化天线
公开(公告)号：US4543579A
公开(公告)日：1985-09-24
申请号：US550120
申请日：1983-11-09
申请人： Tasuku Teshirogi
发明人： Tasuku Teshirogi
IPC分类号： H01Q21/06 , H01Q21/24 , H01Q25/00 , H04B7/10
CPC分类号： H01Q21/065 , H01Q21/24 , H01Q25/001
摘要： A circular polarization antenna having wide-band circular polarization characteristics and impedance characteristics is accomplished by feedng N-antenna elements which are shifted at an interval of .pi./N rad. with respect to the boresight direction with differential phase shift of an interval of .pi./N rad. corresponding to the angular orientation of the antenna elements so as to obtain perfect circular polarization with respect to the boresight direction. This antenna construction can be applied to circular polarization antennas of various types, thereby allowing a wide-band circular polarization array antenna or an array antenna for dual orthogonal circular polarizations having high polarization discrimination to be achieved.
摘要翻译：具有宽带圆极化特性和阻抗特性的圆极化天线通过馈送以pi / Nrad的间隔移位的N个天线元件来实现。相对于具有pi / N rad的间隔的差分相移的视轴方向。对应于天线元件的角度定向，从而获得相对于视轴方向的完美圆极化。该天线结构可以应用于各种类型的圆极化天线，从而允许实现具有高极化鉴别的双正交圆偏振的宽带圆偏振阵列天线或阵列天线。

2. 发明授权

US4351062A Method and apparatus for suppressing digital error noise in digital communication 失效
标题翻译：用于抑制数字通信中的数字误差噪声的方法和装置
公开(公告)号：US4351062A
公开(公告)日：1982-09-21
申请号：US195336
申请日：1980-10-08
申请人： Kiyosumi Yoshiya
发明人： Kiyosumi Yoshiya
IPC分类号： H04L1/00 , G06F17/14 , H04L27/26 , H03K5/01
CPC分类号： H04L27/26
摘要： In digital telecommunication, the suppression of digital error noise contained in the signals received by the receiver is accomplished by subjecting the received signals to Fourier transform thereby to obtain a frequency spectrum, subtracting a predetermined flat spectrum from the amplitude spectrum of the frequency spectrum, subjecting the resulting difference to invert Fourier transform thereby to extract any digital error noise component and correcting the particular sampled signal containing the noise component by use of interpolation with respect to the preceding and following sets each of several sampled signals between which the particular sampled signal is interposed, whereby sampled signals free from the digital error noise are delivered as output signals.
摘要翻译：在数字电信中，由接收机接收的信号中包含的数字误差噪声的抑制是通过对接收到的信号进行傅里叶变换，从而获得频谱，从频谱的振幅谱中减去预定的平谱，所产生的差异反向傅里叶变换从而提取任何数字误差噪声分量，并且通过使用相对于之前和之后的组合来对包含噪声分量的特定采样信号进行校正，其中各个采样信号在其间插入特定采样信号由此，没有数字误差噪声的采样信号被输出作为输出信号。

3. 发明授权

US4584581A Beam forming network for multibeam array antenna 失效
标题翻译：用于多波束阵列天线的波束形成网络
公开(公告)号：US4584581A
公开(公告)日：1986-04-22
申请号：US365265
申请日：1982-04-05
申请人： Tasuku Teshirogi
发明人： Tasuku Teshirogi
IPC分类号： H01Q3/40 , H01Q25/00
CPC分类号： H01Q25/00 , H01Q3/40
摘要： A resistive-coupling type beam forming network for a multibeam array antenna involving symmetry in the arrangement of antenna elements and/or the arrangement of beams. In the network, a matrix is formed of distribution lines from four-phase splitters each receiving two input signals in the relationship of mutual complex conjugates and outputting four-phase signals, output summing lines and coupling resistors for coupling specific distribution lines with output summing lines. Owing to the fact that each four-phase splitter and each set of four distribution lines per splitter can be shared for two input signals of complex conjugates, and where the arrangement of beams or antenna elements on the output side has symmetry, each coupling resistor can be shared for two output signals of complex conjugates, the number of coupling points of the matrix is notably decreased, beam forming characteristics are improved and the size and weight of the whole network are reduced accordingly.
摘要翻译：一种用于多波束阵列天线的电阻耦合型波束形成网络，其涉及天线元件的布置和/或波束排列的对称性。在网络中，矩阵由来自四相分离器的分配线组成，每个相分离器接收两个相互复共轭关系中的两个输入信号，并输出四相信号，输出求和线和用于将特定分布线与输出求和线耦合的耦合电阻。由于每个分离器的每个四相分配器和每组四个配线可以共用于复共轭的两个输入信号，并且其中输出侧的波束或天线元件的布置具有对称性，每个耦合电阻器对于复共轭的两个输出信号共享，矩阵的耦合点的数量明显减少，波束形成特性得到改善，并且整个网络的大小和权重相应地减小。

4. 发明授权

US4351188A Method and apparatus for remote measurement of wind direction and speed in the atmosphere 失效
标题翻译：用于远程测量大气中风向和速度的方法和装置
公开(公告)号：US4351188A
公开(公告)日：1982-09-28
申请号：US268107
申请日：1981-05-28
申请人： Madoka Fukushima , Kin-ichiro Akita , Yoshihisa Masuda
发明人： Madoka Fukushima , Kin-ichiro Akita , Yoshihisa Masuda
IPC分类号： G01P5/00 , G01P13/00 , G01S13/86 , G01S13/95 , G01S15/88 , G08C17/00 , G01W1/02 , G01W1/00 , G01S13/00
CPC分类号： G01S13/951 , G01S13/86 , G01S15/885
摘要： An acoustic wave source and a radio wave source are installed close to each other on the ground. When an acoustic wave pulse is transmitted vertically into the atmosphere by the acoustic wave source, spherical wavefronts formed in the atmosphere by the acoustic wave are propagated upwardly at the velocity of sound. When a continuous radio wave is transmitted from the radio wave source toward the spherical wavefronts, it is reflected by the wavefronts and the reflected radio waves are converged to form a focusing spot on the ground. The position where the spot due to the convergence of the reflected radio waves is formed with the maximum intensity is detected by means of an antenna network formed of a multiplicity of receiving antennas laid out in the pattern of a lattice. The time-course change of such positions of the spots is traced to realize remote measurement of the height distribution of wind direction and speed in the atmosphere under surveillance.
摘要翻译：声波源和无线电波源在地面上彼此靠近安装。当声波脉冲由声波源垂直传播到大气中时，由声波在大气中形成的球面波前沿声速向上传播。当从无线电波源向球面波前发射连续的无线电波时，它被波前反射，并且反射的无线电波被会聚以在地面上形成聚焦点。通过由布置在格子图案中的多个接收天线形成的天线网络来检测由于具有最大强度而形成的反射无线电波的会聚而导致的点的位置。跟踪这些位置的时间间隔变化，以实现对监视大气中风向和速度的高度分布的远程测量。

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