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1.发明授权
公开(公告)号：US6034643A
公开(公告)日：2000-03-07
申请号：US45711
申请日：1998-03-23
摘要： A directional beam antenna device includes: an antenna supporting member which is supported on a base in such a manner as to be rotatable about a first rotational axis; an antenna portion which is supported on the antenna supporting member in such a manner as to be rotatable about a second rotational axis which is perpendicular to an antenna aperture and is inclined at a first angle with respect to the first rotational axis, the direction of an antenna beam being inclined at a second angle with respect to the second rotational axis; a first driving unit for rotating the antenna supporting member about the first rotational axis with respect to the base; and a second driving unit for rotating the antenna portion about the second rotational axis with respect to the antenna supporting member. A directional beam controlling apparatus is provided with a controlling unit for controlling an elevation angle of the antenna beam to a target value by causing the second driving unit to rotate the antenna portion with respect to the antenna supporting member, and for controlling an azimuth angle of the antenna beam to a target value by causing the first driving unit to rotate the antenna supporting member with respect to the base.
摘要翻译： 定向波束天线装置包括：天线支撑构件，其以可绕第一旋转轴线旋转的方式支撑在基座上; 天线部分，其被支撑在天线支撑构件上，使得可以围绕垂直于天线孔径的第二旋转轴线旋转，并且相对于第一旋转轴线以第一角度倾斜， 天线波束相对于第二旋转轴线以第二角度倾斜; 第一驱动单元，用于相对于基座围绕第一旋转轴线旋转天线支撑构件; 以及第二驱动单元，用于相对于天线支撑构件旋转天线部分围绕第二旋转轴线。 定向波束控制装置设置有控制单元，用于通过使第二驱动单元相对于天线支撑构件旋转天线部分而将天线波束的仰角控制到目标值，并且用于控制天线束的方位角 通过使第一驱动单元相对于基座旋转天线支撑构件，使天线波束成为目标值。
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2.发明授权Annular microstrip antenna element and radial line antenna system employing the same 失效环形微带天线元件和采用其的径向线天线系统
公开(公告)号：US5675346A
公开(公告)日：1997-10-07
申请号：US618822
申请日：1996-03-20
CPC分类号： H01Q9/0464 , H01Q21/0012
摘要： In an annular microstrip antenna element, an annular radiant conductor plate is mounted on a ground conductor plate via a dielectric layer. A coaxial transmission line is provided, whose external conductor is connected to the ground conductor plate, and whose central conductor is connected to the radiant conductor plate, via a feeding point, with a pair of microstrip lines. The pair of microstrip lines extend from the feeding point to two connecting points on the radiant conductor plate, forming an angle between them like a V shape. By varying the angle, it is possible to adjust the input impedance of the annular microstrip antenna element at the feeding point, so that impedance matching with the coaxial transmission line is achieved. In a radial line antenna system comprising a plurality of the antenna elements, the antenna elements are mounted on concentric circles with a constant space between the adjacent antenna elements, thereby reducing undesirable electromagnetic coupling.
摘要翻译： 在环形微带天线元件中，环形辐射导体板通过电介质层安装在接地导体板上。 提供一种同轴传输线，其外部导体连接到接地导体板，并且其中心导体经由馈电点与一对微带线连接到辐射导体板。 一对微带线从馈电点延伸到辐射导体板上的两个连接点，在它们之间形成一个V形的角度。 通过改变角度，可以调节馈电点处的环形微带天线元件的输入阻抗，从而实现与同轴传输线的阻抗匹配。 在包括多个天线元件的径向天线系统中，天线元件以相邻的天线元件之间的恒定空间安装在同心圆上，从而减少不期望的电磁耦合。
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公开(公告)号：US5900836A
公开(公告)日：1999-05-04
申请号：US624802
申请日：1996-03-27
CPC分类号： H01Q1/3233 , H01Q1/1257 , H01Q3/08
摘要： A control portion performs gyro control at control intervals of .DELTA.t, by using -.omega.G, which is obtained by inverting the polarity of an angular rate .omega.G outputted from an angular rate sensor portion. On the other hand, a receiving level is detected at constant control intervals of .DELTA.T (=M.DELTA.t: M is an integer). The rotation of an antenna portion is controlled by using .omega.s, if the receiving level has increased, or by using -.omega.s, if the receiving level has decreased, i.e. by step track control. By accumulating the control amount .+-..omega.s for a predetermined long time period of N.DELTA.T, accumulation of an error contained in each angular rate .omega.G is obtained. The accumulated value is then divided by N to calculate an error .DELTA..omega.G contained in .omega.G. This error .DELTA..omega.G is used to compensate the actual error, so that the gyro control can be made more accurate.
摘要翻译： 控制部分通过使用通过使从角速度传感器部分输出的角速度ωG的极性反转获得的ωG来执行DELTA t的控制间隔的陀螺仪控制。 另一方面，在DELTA T（= M DELTA t：M是整数）的恒定控制间隔处检测到接收电平。 天线部分的旋转通过使用ω-s来控制，如果接收电平已经增加，或者如果接收电平已经减小，即通过步进轨迹控制，则通过使用ωω来控制天线部分的旋转。 通过在N DELTA T的预定长时间周期内累积控制量+/- omega，获得每个角速度ωG中包含的误差的积累。 然后将累积值除以N，以计算包含在ωG中的误差ΔTAωωG.该误差ΔTAωG用于补偿实际误差，使得可以使陀螺仪控制更准确。
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公开(公告)号：US6052084A
公开(公告)日：2000-04-18
申请号：US864114
申请日：1997-05-28
申请人： Shigeki Aoshima , Tomohisa Harada
发明人： Shigeki Aoshima , Tomohisa Harada
CPC分类号： H01Q1/3275 , H01Q3/10
摘要： A vehicle-mounted satellite signal receiving system adopting a satellite tracking system combining gyro tracking and hybrid tracking is disclosed which can correct a sensitivity coefficient for correcting a gyro sensor output signal to make up for a sensitivity error, even when a drift is produced in the sensitivity error. In this system, gyro tracking is caused when the received power level is above a threshold power level. The gyro tracking is done by determining the angular velocity .omega. of an antenna as .omega.=-(.omega.G.times..DELTA.SB+.omega.G from a value obtained by inverting the sign of the product of a gyro tracking angular velocity .omega.G and a sensitivity coefficient .DELTA.SB for dealing with the sensitivity error and a predetermined offset error correction value .omega.G and setting the antenna to .omega.. When .DELTA.SB is inaccurate and a sensitivity error is generated in the gyro sensor output signal, the received power level is reduced. When the received power level becomes lower than a threshold power level LB, the sensitivity coefficient is corrected on the basis of the sense of the angular velocity .omega.S in the hybrid tracking (step tracking) and in the gyro tracking.
摘要翻译： 公开了采用结合陀螺跟踪和混合跟踪的卫星跟踪系统的车载卫星信号接收系统，其可以校正用于校正陀螺仪传感器输出信号的灵敏度系数以补偿灵敏度误差，即使在 灵敏度误差。 在该系统中，当接收功率电平高于阈值功率电平时，引起陀螺仪跟踪。 陀螺仪跟踪通过将天线的角速度ω确定为ω= - （ωGxDELTA SB +ωG），通过将陀螺仪跟踪角速度ωG的乘积符号和灵敏度系数DELTA SB反转得到的值来确定 用于处理灵敏度误差和预定偏移误差校正值ωG并将天线设置为ω，当DELTA SB不准确并且在陀螺传感器输出信号中产生灵敏度误差时，接收功率电平降低，当接收到 功率电平变得低于阈值功率电平LB，则基于混合跟踪（步进跟踪）和陀螺仪跟踪中的角速度ωS的感测来校正灵敏度系数。
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公开(公告)号：US5828337A
公开(公告)日：1998-10-27
申请号：US861851
申请日：1997-05-22
申请人： Shigeki Aoshima , Tomohisa Harada
发明人： Shigeki Aoshima , Tomohisa Harada
CPC分类号： H01Q3/10 , H01Q1/3275
摘要： In a vehicle mounted satellite signal receiving apparatus which adopts a satellite tracking system combining a gyro tracking with a hybrid tracking, there is provided a device which can revise an offset error correction value of a gyro sensor, even if there is a drift in the offset error. In this device, gyro tracking is performed when a reception level is a threshold value L.sub.C or more. The gyro tracking is performed by setting an antenna at an angular velocity .omega., which is derived from an equation,.omega.=-.omega.G+.DELTA..omega.G, where -.omega.G is a value resulted from conversion of sign for gyro angular velocity .omega.G, and .DELTA..omega.G is a prescribed offset error correction value. A reception level declines if the offset error correction value .DELTA..omega.G deviates and therefore an apparent offset error arises in the gyro sensor. When the reception level declines below a threshold value L.sub.B, the aforementioned offset error correction value .DELTA..omega.G is revised, basing on the direction of an angular velocity .omega.S which is used in the hybrid tracking (or step tracking).
摘要翻译： 在采用将陀螺跟踪与混合跟踪相结合的卫星跟踪系统的车载卫星信号接收装置中，提供了一种能够修正陀螺仪传感器的偏移误差校正值的装置，即使在偏移量中存在漂移 错误。 在该装置中，当接收电平为阈值LC以上时进行陀螺仪跟踪。 陀螺仪跟踪是通过以从等式得出的角速度ω的天线来进行的，其中，ωG是由陀螺角速度ωG的符号转换得到的值， DELTA omega G是规定的偏移误差校正值。 如果偏移误差校正值DELTAωG偏移，并且因此在陀螺传感器中出现明显偏移误差，则接收电平下降。 当接收电平下降到低于阈值LB时，根据在混合跟踪（或步进跟踪）中使用的角速度ωS的方向来修正上述偏移误差校正值ΔTATAωG。
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公开(公告)号：US07035348B2
公开(公告)日：2006-04-25
申请号：US10153655
申请日：2002-05-24
申请人： Noriyoshi Suzuki , Tomohisa Harada , Tsutayuki Shibata , Hisanori Uda , Hiroaki Hayashi , Nobuo Itoh
发明人： Noriyoshi Suzuki , Tomohisa Harada , Tsutayuki Shibata , Hisanori Uda , Hiroaki Hayashi , Nobuo Itoh
IPC分类号： H03K9/00
CPC分类号： H04L5/06
摘要： A receiver configured to receive a plurality of signals k (k=1, 2, . . . , M) allocated in a first frequency band. The receiver includes a frequency conversion section for reallocating the signals k in a second frequency band for sampling by a single AD converter at a sampling frequency fs such that digital data of the sampled signals k are obtained in a third frequency band extending from zero Hz to a frequency represented by fs/2; and a signal extraction section for extracting a target base band signal k from the digital data obtained by the AD conversion section. The frequency conversion section performs the reallocation in such a manner that at least a frequency represented by Jfs/2 (J is an integer) is located between the frequencies of at least two of the signals k and that the sampled signals do not overlap.
摘要翻译： 接收器，被配置为接收分配在第一频带中的多个信号k（k = 1,2，...，M）。 该接收机包括一个频率转换部分，用于重新分配第二频带中的信号k，以便以单个AD转换器以采样频率f S采样，使得采样信号k的数字数据以 第三频带从零Hz延伸到由f / s2表示的频率; 以及信号提取部分，用于从由AD转换部分获得的数字数据中提取目标基带信号k。 频率转换部分以这样的方式执行重新分配，使得至少由J f S 2/2（J为整数）表示的频率位于信号k中的至少两个的频率之间，并且 采样信号不重叠。
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公开(公告)号：US06288672B1
公开(公告)日：2001-09-11
申请号：US09394088
申请日：1999-09-13
申请人： Yoshikazu Asano , Tomohisa Harada
发明人： Yoshikazu Asano , Tomohisa Harada
IPC分类号： H01Q302
摘要： High-frequency signals from an oscillator (10) are transmitted, through a power divider (12) and a switch (14), from transmission antennas (T1, T2, T3). Reflection waves reflected by targets are received by reception antennas (R1, R2) to thereafter be fed via a switch (16) to a mixer (18). The mixer (18) is supplied with transmission high-frequency signals from the power divider (12) to retrieve beat-signal components therefrom, which in turn are converted into digital signals for the processing in a signal processing circuit 22. The transmission antennas (T1 to T3) and the reception antennas (R1, R2) are switched in sequence whereby it is possible to acquire signals equivalent to ones obtained in radars having a single transmission antenna and six reception antennas.
摘要翻译： 来自振荡器（10）的高频信号通过功率分配器（12）和开关（14）从发射天线（T1，T2，T3）发射。 由目标反射的反射波由接收天线（R1，R2）接收，之后经由开关（16）馈送到混频器（18）。 向混频器（18）提供来自功率分配器（12）的发送高频信号以从其中检索其中的信号分量，其又被转换为用于信号处理电路22中的处理的数字信号。发送天线 T1至T3）和接收天线（R1，R2），从而可以获取与具有单个发送天线和六个接收天线的雷达中获得的信号相当的信号。
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