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公开(公告)号：US4656479A
公开(公告)日：1987-04-07
申请号：US690938
申请日：1985-01-14
摘要： A radar system for finding the location of a second flying object from a first flying object, comprises a nondirectional antenna for radiating a first radio wave from the first flying object, a second nondirectional antenna provided on the second flying object to receive the first radio wave and to radiate a second radio wave generated by modulating the received first radio wave and an array antenna provided on the first flying object to receive the second radio wave. The respective amplitudes of the signals given by the antenna elements of the array antenna are compared individually with a specified level and an operation for determining the direction of arrival of the second radio wave is executed using the signals given by all the antenna elements when either of the amplitudes of the signals given by the antenna elements is greater than the specified level.
摘要翻译： 用于从第一飞行物体找到第二飞行物体的位置的雷达系统包括用于辐射来自第一飞行物体的第一无线电波的非定向天线，设置在第二飞行物体上的第二无方位天线，以接收第一无线电波 并辐射通过调制所接收的第一无线电波产生的第二无线电波和设置在第一飞行物体上的阵列天线以接收第二无线电波。 由阵列天线的天线元件给出的信号的相应幅度被单独地与指定电平进行比较，并且使用由所有天线元件给出的信号来执行用于确定第二无线电波的到达方向的操作， 由天线元件给出的信号的振幅大于指定的电平。
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公开(公告)号：US5280565A
公开(公告)日：1994-01-18
申请号：US490761
申请日：1990-03-08
申请人： Kohei Nomoto , Tetsuo Kirimoto , Yoshimasa Ohhashi
发明人： Kohei Nomoto , Tetsuo Kirimoto , Yoshimasa Ohhashi
CPC分类号： G06N5/048 , G06N5/042 , G06N7/023 , Y10S706/90
摘要： A sequential type Fuzzy backward reasoning device is disclosed, which is capable of performing computation progressing every time a feature quantity is observed to update reasoning and of performing the reasoning even if the order of observations is arbitrary, by providing means for performing sequential reasoning instead of batch type reasoning means, and feedback means for feeding back a reasoned result.Additionally, a target recognition device is disclosed which is capable of computing as a numerical value the reliable degree of a recognized result on a target by obtaining another recognizing information even if there is not obtained any information concerning the target, using said sequential type Fuzzy backward reasoning device.
摘要翻译： 公开了一种顺序型模糊倒退推理装置，其能够在每次观察到特征量时进行计算进行，以更新推理，并且即使观察的顺序是任意的，通过提供用于执行顺序推理而不是 批次类型推理手段，以及用于反馈推理结果的反馈装置。 此外，公开了一种目标识别装置，其能够通过获得另一个识别信息，即使没有获得关于目标的任何信息，也可以使用所述顺序类型的模糊向后计算作为数字值的可识别的目标结果的程度 推理装置
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3.发明授权Method for measuring distances/speeds of plural targets and radar apparatus, capable of discriminating moving targets from stationary targets 有权用于测量多个目标和雷达装置的距离/速度的方法，能够区分移动目标与静止目标公开(公告)号：US06384769B1
公开(公告)日：2002-05-07
申请号：US09458029
申请日：1999-12-10
申请人： Masashi Mitsumoto , Tetsuo Kirimoto
发明人： Masashi Mitsumoto , Tetsuo Kirimoto
IPC分类号： G01S1342
CPC分类号： G01S13/34 , G01S7/352 , G01S13/345 , G01S13/584 , G01S2007/356
摘要： The present invention discriminates between moving targets and stationary targets in order to measure distances and speeds of the targets without producing a false target. The invention transmits signals whose modulating frequencies ascend or descend to a target, and receives signals reflected from this target. A frequency spectrum of a beat signal of each target is detected during a modulating frequency ascent period and a modulating frequency descent period. The frequency spectrum of the modulating frequency ascent period and the frequency spectrum of the modulating frequency descent period are used to set a reference spectrum. The reference beat frequencies of either the moving targets or the stationary targets are detected based upon the reference spectrum. The beat frequencies of targets in the modulating frequency ascent and descent periods are used to form a combination seeking table, from which a component other than the reference beat frequencies of either the moving targets or the stationary targets are removed. The distances and speeds of the targets are calculated based upon the beat frequency components from the combination seeking means.
摘要翻译： 本发明鉴别移动目标和静止目标之间的差异，以便在不产生假目标的情况下测量目标的距离和速度。 本发明将调制频率上升或下降的信号发送到目标，并接收从该目标反射的信号。 在调制频率上升期间和调制频率下降周期期间检测每个目标的差拍信号的频谱。 使用调制频率上升期的频谱和调制频率下降周期的频谱来设定参考频谱。 基于参考光谱检测移动目标或静止目标的参考拍频。 使用调制频率上升和下降周期中的目标的拍频来形成组合搜索表，除去移动目标或静止目标的参考拍频之外的分量。 目标的距离和速度根据来自组合寻求装置的拍频成分计算。
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公开(公告)号：US4472718A
公开(公告)日：1984-09-18
申请号：US308171
申请日：1981-10-02
CPC分类号： G01S13/42
摘要： A tracking radar system which includes a variable frequency oscillator for supplying to a vertical antenna array an oscillation frequency which is changed for each of a number of pulses transmitted from the antenna array. The antenna array transmits an electric wave toward a target at a low altitude and receives an echo from the target. An electronic computer estimates an elevation angle of the target from the echo received by the antenna array according to array aperture sampling technique for each pulse. An averaging circuit averages those estimated elevation angles of the target to provide its elevation angle. Alternatively, the oscillation frequency may change for each of finite time intervals.
摘要翻译： 一种跟踪雷达系统，其包括可变频率振荡器，用于向垂直天线阵列提供对从天线阵列发送的多个脉冲中的每一个发生改变的振荡频率。 天线阵列向低空的目标发射电波并从目标接收回波。 电子计算机根据每个脉冲的阵列孔径采样技术估计由天线阵列接收的回波的目标的仰角。 平均电路平均目标的估计仰角以提供其仰角。 或者，振荡频率可以针对每个有限时间间隔而改变。
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公开(公告)号：US5289563A
公开(公告)日：1994-02-22
申请号：US704262
申请日：1991-05-22
申请人： Kohei Nomoto , Tetsuo Kirimoto , Yoshimasa Ohhashi
发明人： Kohei Nomoto , Tetsuo Kirimoto , Yoshimasa Ohhashi
CPC分类号： G06N7/023 , G06N5/048 , Y10S706/90 , Y10S706/902
摘要： A sequential type Fuzzy backward reasoning device is disclosed, which is capable of performing computation progressively every time a feature quantity is observed to update reasoning, and of performing the reasoning even if the order of observations is arbitrary, by providing means for performing the sequential reasoning instead of batch type reasoning means, and feedback means for feeding back a reasoned result.Additionally, a target recognition device is disclosed, which is capable of computing the reliability of a recognized result on a target and outputting the same as a numerical value, by obtaining another recognition information even if there is not obtained any information concerning the target, using said sequential type Fuzzy backward reasoning device.
摘要翻译： 公开了一种顺序型模糊倒退推理装置，其能够在每次观察到特征量以更新推理时逐步执行计算，并且即使观察次序是任意的，也通过提供用于执行顺序推理的装置来执行推理 而不是批次类型推理手段，以及用于反馈推理结果的反馈装置。 此外，公开了一种目标识别装置，其能够通过获得另一识别信息来计算目标上的识别结果的可靠性并将其输出为数值，即使没有获得关于目标的任何信息，使用 所述顺序型模糊向后推理装置。
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公开(公告)号：US4939745A
公开(公告)日：1990-07-03
申请号：US399772
申请日：1989-08-28
申请人： Tetsuo Kirimoto , Takashi Hotta , Yoshimasa Ohashi
发明人： Tetsuo Kirimoto , Takashi Hotta , Yoshimasa Ohashi
CPC分类号： H04L12/00 , G01S13/325 , G06F7/544
摘要： An apparatus for generating orthogonal sequences is disclosed which includes an M-sequence generator for providing a signal of M-sequence of which the component takes 0 or 1 and the period is N, and substitution means connected to the output of the M-sequence generator for substituting the component of the M-sequence. The substitution means substitute the component with A.sub.0 e.sup.j.phi..sbsp.0 when the value of the component is 0 and with A.sub.1 e.sup.j.phi..sbsp.1 when it is 1, where each of A.sub.0 and A.sub.1 is a positive real number, and the substitution is performed so that a trigonometric function f.sub.1 (.phi..sub.1 -.phi..sub.0) having a phase of (.phi..sub.1 -.phi..sub.0) is a ratio of two functions f.sub.2 (A.sub.1 /A.sub.0) which is a quadratic function of A.sub.1 /A.sub.0 with a coefficient of a linear function of N and f.sub.3 (A.sub.1 /A.sub.0) which is a linear function of A.sub.1 /A.sub.0 with a coefficient of a linear function of N, whereby the orthogonal sequence is generated from the substitution means.
摘要翻译： 公开了一种用于产生正交序列的装置，其包括：M序列发生器，用于提供组件取0或1并且周期为N的M序列的信号，以及连接到M序列发生器的输出的替换装置 用于代替M序列的成分。 当组件的值为0且A1ej phi 1为1时，替代方法用A0ej phi 0代替组件，其中A0和A1各自为正实数，并执行替换，使得三角函数 具有相位（phi1-phi0）的f1（phi1-phi0）是作为A1 / A0的二次函数的函数f2（A1 / A0）与线性函数N的系数的比率 f3（A1 / A0），其为具有线性函数N的系数的A1 / A0的线性函数，由此从替换装置产生正交序列。
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公开(公告)号：US5304940A
公开(公告)日：1994-04-19
申请号：US901566
申请日：1992-06-19
CPC分类号： G01S7/2921 , G01S13/5246
摘要： An unwanted signal suppression device is disclosed for suppressing unwanted signals in input signals containing desired and unwanted signals. The input signals are divided into segments in the time domain. The device includes a unit for detecting the segment having maximum power, a unit for computing reflection coefficients on the basis of the segments except the detected power segment, and a lattice filter for suppressing the unwanted signals by using the computed reflection coefficients. A second device includes a reflection coefficient computing unit, a median filter and a lattice filter. A third device includes a unit for estimating unwanted signals frequency, a filter for computing filter weights on the basis of the estimated frequency and filter coefficients and for applying the computed weights to the input signals so as to suppress the unwanted signals.
摘要翻译： 公开了一种不需要的信号抑制装置，用于抑制包含期望和不需要的信号的输入信号中的不需要的信号。 输入信号在时域中分为段。 该装置包括用于检测具有最大功率的段的单元，用于基于除检测到的功率段之外的段来计算反射系数的单元和用于通过使用所计算的反射系数来抑制不需要的信号的网格滤波器。 第二装置包括反射系数计算单元，中值滤波器和网格滤波器。 第三装置包括用于估计不需要的信号频率的单元，用于基于估计的频率和滤波器系数来计算滤波器权重的滤波器，以及用于将所计算的权重施加到输入信号，以便抑制不需要的信号。
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公开(公告)号：US5136611A
公开(公告)日：1992-08-04
申请号：US642193
申请日：1991-01-16
申请人： Tetsuo Kirimoto , Yoshimasa Ohhashi
发明人： Tetsuo Kirimoto , Yoshimasa Ohhashi
CPC分类号： G06F17/147 , G01S13/325 , G06F7/584 , H04J13/0025 , H04J13/004 , H04J13/12 , G06F2207/581 , G06F2207/583 , H04J2013/0037
摘要： An apparatus, usable in a radar system, for generating a multi-value orthogonal sequence includes a multi-element M-sequence generator and a component substituting device. The M-sequence generator comprises a shift register including delay elements, multipliers for multiplying signals output from the respective delay elements by feedback factors, and adders for adding the multiplied signals from the multipliers to provide the result to the delay element initially arranged in the shift register whereby a multi-element M-sequence is generated from the delay element finally arranged therein. The substituting device comprises a microcomputer and substitutes each component of the M-sequence with one of complex-numbers, Z.sub.o, Z.sub.i, . . . Z.sub.q-1 in such a manner that when the component is 0, it is substituted with Z.sub.o .noteq.0, and when it is .epsilon..sup.i (i=1, 2, . . . q-1), it is substituted with z.sub.i, where the set of Z.sub.o, Z.sub.i, . . . Z.sub.q-1 are the solution of the following simultaneous algebraic equations: ##EQU1## where mod.sub.q-1 (.multidot.) represents a calculation of modulo (q-1) and is expressed as q-1 when the result is 0, * represents a complex conjugate, and r=1, 2, . . ., q-2.
摘要翻译： 可用于雷达系统的用于产生多值正交序列的装置包括多元素M序列发生器和元件替换装置。 M序列发生器包括一个包括延迟元件的移位寄存器，用于将由各个延迟元件输出的信号乘以反馈因子的乘法器和用于将来自乘法器的相乘的信号相加的加法器，以将结果提供给最初被布置在移位中的延迟元件 寄存器，由此最终布置在其中的延迟元件产生多元件M序列。 替代装置包括一个微型计算机，用M-sequence中的复数Zo，Zi代替M序列的每个分量。 。 。 Zq-1，当组件为0时，用Zo NOTEQUAL 0代替，当它是εi（i = 1,2，...，q-1）时，用zi代替，其中 一套Zo，Zi，。 。 。 Zq-1是以下同时代数方程的解：其中modq-1（x）表示模（q-1）的计算，当结果为0时表示为q-1，* 表示复合缀合物，r = 1,2。 。 。，q-2。
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公开(公告)号：US5087917A
公开(公告)日：1992-02-11
申请号：US584157
申请日：1990-09-18
摘要： A radar system having a phased array antenna for transmission and a digital beam forming antenna for reception for observing a plurality of targets by transmitting transmission pulses to the respective targets comprises a subtraction control circuit, a transmission timing control circuit and a transmission beam direction control circuit. The substraction control circuit calculates a required number of transmission pulses (beams) to be transmitted for each of transmission cycles in accordance with detected Doppler frequencies of the targets, so as not to cause ambiguity on the detected Doppler frequencies, and determines a beam direction for each of transmission beams. The timing control circuit and beam direction control circuit control transmission timing and direction of the beams.
摘要翻译： 具有用于传输的相控阵天线的雷达系统和用于通过向各个目标发送传输脉冲来观察多个目标的用于接收的数字波束形成天线包括减法控制电路，发送定时控制电路和发送波束方向控制电路 。 减法控制电路根据检测到的目标多普勒频率，计算要发送的每个发送周期的发送脉冲（波束）的数量，以便不会对检测到的多普勒频率造成歧义，并且确定波束方向 每个传输光束。 定时控制电路和光束方向控制电路控制光束的传输定时和方向。
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公开(公告)号：US4996532A
公开(公告)日：1991-02-26
申请号：US450290
申请日：1989-12-13
摘要： A radar system having improved interference resistance. A transmitting section includes an oscillator capable of switching the oscillation frequency, and a transmitting antenna connected to said oscillator and capable of transmitting electric waves having specified transmitting frequencies transmitted in different directions in a specified order to enable a desired range to be scanned. The oscillator and the transmitting antenna are designed to operate so that every time one scanning is completed or every time the transmitting direction is changed during each scanning period, the transmitting frequency may be changed. The receiver can simultaneously form a plurality of beams in the scanning range, convert the received signals to digital signals, and output signals indicating the frequencies and arrival directions of the received signals. The operating mode of the transmitting section may be altered in accordance with the frequency and arrival direction of the received waves.
摘要翻译： 具有改善的抗干扰性的雷达系统。 发送部分包括能够切换振荡频率的振荡器和连接到所述振荡器的发送天线，并且能够以指定的顺序发送具有以不同方向发送的指定发送频率的电波，以使能够扫描期望的范围。 振荡器和发射天线被设计成使得每次扫描完成或每次扫描周期期间每次发射方向改变时，可以改变发射频率。 接收机可以同时在扫描范围内形成多个光束，将接收的信号转换为数字信号，并输出指示接收信号的频率和到达方向的信号。 可以根据接收到的波的频率和到达方向改变发送部分的操作模式。
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