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    • 1. 发明专利
    • Target motion estimating device, target motion estimating method, and radar device
    • 目标运动估计装置,目标运动估计方法和雷达装置
    • JP2013217837A
    • 2013-10-24
    • JP2012090134
    • 2012-04-11
    • Furuno Electric Co Ltd古野電気株式会社
    • TAKEMOTO AYAKINU
    • G01S13/66G01S13/87G01S13/93
    • PROBLEM TO BE SOLVED: To solve the problem in TT that an estimated position of a target deviates significantly from an actual position due to sudden veering or a sudden change in a speed of the target, and therefore actual movements of the target cannot be tracked even if processing is performed to change a filter coefficient in accordance with a change in an estimated speed.SOLUTION: A target motion estimating device is loaded on a target detector which repeatedly transmits and receives electromagnetic waves to scan a prescribed area. The target motion estimating device is equipped with: an echo signal acquisition unit; a Doppler velocity acquisition unit for calculating a Doppler velocity on the basis of an amount of phase change; a target information acquisition unit for acquiring an observation position of a target on the basis of the echo signals acquired by the echo signal acquisition unit; an observation position correcting unit for generating a corrected position which is the observation position of the target corrected with the Doppler velocity of the target obtained by the Doppler velocity acquisition unit; and a prediction unit for calculating a predicted position which is a predicted observation position of the target obtained at a subsequent scan on the basis of the corrected position.
    • 要解决的问题:为了解决TT中的问题,目标的估计位置由于突然的转向或目标的速度的突然变化而显着偏离实际位置,因此目标的实际移动甚至不能被跟踪 如果进行处理以根据估计速度的变化来改变滤波器系数。解决方案:目标运动估计装置被加载到重复发送和接收电磁波以扫描规定区域的目标检测器上。 目标运动估计装置配备有:回波信号获取单元; 多普勒速度获取单元,用于基于相位变化量计算多普勒速度; 目标信息获取单元,用于基于由回波信号获取单元获取的回波信号获取目标的观察位置; 观察位置校正单元,用于生成校正位置,所述校正位置是由所述多普勒速度获取单元获得的所述目标的多普勒速度校正的所述目标的观察位置; 以及预测单元,用于基于校正位置计算作为在后续扫描中获得的目标的预测观察位置的预测位置。
    • 2. 发明专利
    • Detection image generation device, radar device, detection image generation method, and detection image generation program
    • 检测图像生成装置,雷达装置,检测图像生成方法和检测图像生成程序
    • JP2014029284A
    • 2014-02-13
    • JP2012169558
    • 2012-07-31
    • Furuno Electric Co Ltd古野電気株式会社
    • TAKEMOTO AYAKINU
    • G01S7/32
    • PROBLEM TO BE SOLVED: To generate a detection image which effectively suppresses a clutter and which does not suppress a traveling target in the clutter.SOLUTION: A reception unit 10 of a detection image generation device 1 generates sweep data by subjecting a received signal to sampling processing and performing quadrature detection on it, and outputs it to a speed detection unit 20 and an image data generation unit 30. The speed detection unit 20 calculates speed of a position of interest from echo data configuring the sweep data, and calculates speed of a peripheral region. The speed detection unit 20 calculates speed difference between the speed of the position of interest and the speed of the peripheral region, and outputs it to the image data generation unit 30. The image data generation unit 30 sets a weighting coefficient α with respect to time echo data, and a weighting coefficient β with respect to the last time image data, according to the speed difference, executes scan correlation processing by the weighting coefficients and generates the time image data. For example, if the speed difference is large, the weighting coefficient α is made to be heavy, and the weighting coefficient β is made to be light.
    • 要解决的问题:产生有效地抑制杂波并且不抑制杂波中的行进目标的检测图像。解决方案:检测图像生成装置1的接收单元10通过使接收信号进行采样来生成扫描数据 处理并执行正交检测,并将其输出到速度检测单元20和图像数据生成单元30.速度检测单元20从构成扫描数据的回波数据计算感兴趣位置的速度,并计算速度 周边地区。 速度检测单元20计算感兴趣位置的速度和周边区域的速度之间的速度差,并将其输出到图像数据生成单元30.图像数据生成单元30设置相对于时间的加权系数α 回波数据和加权系数&bgr; 对于最后一次图像数据,根据速度差,通过加权系数执行扫描相关处理,并生成时间图像数据。 例如,如果速度差大,则加权系数α变重,加权系数&bgr; 被认为是轻的。
    • 3. 发明专利
    • Radar device, and radar image display method
    • 雷达装置和雷达图像显示方法
    • JP2007333482A
    • 2007-12-27
    • JP2006163914
    • 2006-06-13
    • Furuno Electric Co Ltd古野電気株式会社
    • YANAGI KATSUYUKIDAI KOJITAKEMOTO AYAKINU
    • G01S13/66G01S13/42G01S13/93
    • G01S13/9307G01S7/064G01S7/12G01S7/22G01S13/103G01S13/106
    • PROBLEM TO BE SOLVED: To provide a radar device capable of displaying movement information of a tracking target of the same content in all ranges even when images obtained from signals different in pulse width are simultaneously displayed on the same screen; and a radar image display method. SOLUTION: This radar device is characterized by including: an echo data generation part for receiving two or more signals different in pulse width transmitted in a predetermined transmission pattern, and generating displaying echo data corresponding to a detection range on the basis of received echo signals of the same transmission pulse width; an ARPA processing part for generating movement information of one tracking target overlapping the displaying echo data by using the echo signals different in transmission pulse width; a display output synthesis part for superposing the movement information of the tracking target generated by the ARPA processing part on the displaying echo data; and a display part for displaying the image superposed in the display output synthesis part. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:即使当从同一屏幕上同时显示由脉冲宽度不同的信号获得的图像时,也能够在所有范围内显示相同内容的跟踪目标的移动信息的雷达装置; 和雷达图像显示方法。 解决方案:该雷达装置的特征在于包括:回波数据生成部,用于接收以预定的传输模式发送的脉冲宽度不同的两个或更多个信号,并且基于接收到的产生显示对应于检测范围的回波数据 具有相同传输脉冲宽度的回波信号; ARPA处理部,用于通过使用不同于发送脉冲宽度的回波信号来生成与显示回波数据重叠的一个跟踪目标的移动信息; 显示输出合成部,用于将由ARPA处理部生成的跟踪目标的移动信息叠加在显示回波数据上; 以及用于显示叠加在显示输出合成部分中的图像的显示部分。 版权所有(C)2008,JPO&INPIT
    • 4. 发明专利
    • Doppler processing apparatus, radar apparatus, doppler processing method, and doppler processing program
    • 多普勒加工设备,雷达设备,多普勒加工方法和多普勒加工程序
    • JP2014052214A
    • 2014-03-20
    • JP2012195154
    • 2012-09-05
    • Furuno Electric Co Ltd古野電気株式会社
    • ASADA YASUNOBUOKUNISHI SATORUDAI KOJITAKEMOTO AYAKINU
    • G01S13/53
    • G01S13/505G01S13/5242G01S13/582
    • PROBLEM TO BE SOLVED: To prevent S/C and S/N improvement that may occur during Doppler processing on account of unequal intervals of transmission and reception of pulse signals between sweeps.SOLUTION: A radar apparatus 10, using a staggered trigger system, receives with a radar antenna 20 pulse signals transmitted repeatedly at unequal intervals. A phase calculator 43 calculates phase variations occurring in complex received signals I and Q obtained by the reception of the pulse signals by the radar antenna 20, attributable to the shifting speed of the radar antenna 20. A subject ship's speed corrector 44 corrects the complex received signals I and Q on the basis of the phase variations calculated by the phase calculator 43, and outputs corrected complex received signals I' and Q'. A Doppler processor 45, using the corrected complex received signals I' and Q', performs Doppler processing.
    • 要解决的问题:为了防止由于扫描之间的脉冲信号的发送和接收的不等间隔而在多普勒处理期间可能发生的S / C和S / N改善。解决方案:使用交错触发系统的雷达装置10接收 雷达天线20个以不等间隔重复发送的脉冲信号。 相位计算器43计算由雷达天线20的移动速度引起的由雷达天线20接收脉冲信号而获得的复合接收信号I和Q中出现的相位变化。主体船舶速度校正器44校正接收到的复数 基于由相位计算器43计算的相位变化的信号I和Q,并且输出经校正的复数接收信号I'和Q'。 使用经校正的复合接收信号I'和Q'的多普勒处理器45进行多普勒处理。
    • 5. 发明专利
    • Target motion estimating device, target motion estimating method, and radar device
    • 目标运动估计装置,目标运动估计方法和雷达装置
    • JP2013217834A
    • 2013-10-24
    • JP2012090126
    • 2012-04-11
    • Furuno Electric Co Ltd古野電気株式会社
    • TAKEMOTO AYAKINU
    • G01S13/66G01S13/87G01S13/93
    • PROBLEM TO BE SOLVED: To solve the problem in TT that an estimated position of a target deviates significantly from an actual position due to sudden veering or a sudden change in a speed of the target, and therefore actual movements of the specific target cannot be tracked even if processing is performed to change a filter coefficient in accordance with a change in an estimated speed.SOLUTION: A target motion estimating device 10 includes: an echo signal acquisition unit; a phase change information acquisition unit for acquiring information on a phase change between two or more echo signals from a specific target with almost equal distances from an electromagnetic wave transmission source but with different directions; a target information acquisition unit for acquiring an observation position of the specific target on the basis of the echo signals; and a prediction unit for calculating a predicted position which is a predicted observation position of the specific target obtained at a subsequent scan by using the phase change information and the observation position information. According to this configuration, the above problem is solved and a target motion estimating device 10 is provided for estimating target motion at a higher accuracy than in prior art.
    • 要解决的问题:为了解决TT中的问题,目标的估计位置由于突然的转向或目标的速度的突然变化而显着偏离实际位置,因此不能跟踪特定目标的实际移动 即使执行根据估计速度的变化来改变滤波器系数的处理。解决方案:目标运动估计装置10包括:回波信号获取单元; 相位改变信息获取单元,用于从与电磁波发射源几乎相等的距离但具有不同方向的特定目标获取关于两个或更多个回波信号之间的相位变化的信息; 目标信息获取单元,用于基于回波信号获取特定目标的观察位置; 以及预测单元,用于通过使用相变信息和观察位置信息来计算作为在后续扫描中获得的特定目标的预测观察位置的预测位置。 根据该结构,解决了上述问题,提供了目标运动估计装置10,以比现有技术更高的精度来估计目标运动。
    • 6. 发明专利
    • Signal selection device, signal selection method, and rader system
    • 信号选择装置,信号选择方法和放射系统
    • JP2013152157A
    • 2013-08-08
    • JP2012013352
    • 2012-01-25
    • Furuno Electric Co Ltd古野電気株式会社
    • TAKEMOTO AYAKINU
    • G01S13/50G01S13/66G01S13/93
    • G01S13/72G01S13/582G01S13/589G01S13/726G01S13/9307
    • PROBLEM TO BE SOLVED: To solve a problem that, in the conventional radar system, particularly in a TT function, the (moving) phenomenon of a tracking object moving to the other reflective object or the (lost) phenomenon of losing the sight of the tracking object is caused when a plurality of targets are located close by or a specific object is tracked and caught in a situation where there is a number of sea surface reflections.SOLUTION: A signal selection device includes: a transmission/reception part 2 repeating transmission/reception of the electromagnetic waves; a target candidate detection part 4 for detecting a plurality of targets based on eco signals received by the transmission/reception part; a phase change amount calculation part 412 for calculating a phase change amount of the eco signals between two points which are approximately equal in distance from the transmission/reception part and different in direction; and a target selection part 5 for selecting the same target as the target selected by a second scan before a first scan out of the plurality of targets detected in the first scan based on the phase change amount. By such a constitution, the above described problem is solved, and thus, a signal selection device to select the targets with higher accuracy than before is provided.
    • 要解决的问题:为了解决在现有的雷达系统中,特别是在TT功能中,跟踪对象移动到另一反射物体的(移动)现象或失去视觉的(丢失)现象的问题 当多个目标位于靠近或特定对象被跟踪并且在存在多个海面反射的情况下被捕获时,引起跟踪对象。解决方案:信号选择装置包括:发送/接收部分2重复发送 /接收电磁波; 基于由发送/接收部分接收的环境信号来检测多个目标的目标候选检测部分4; 相位变化量计算部412,用于计算距发送/接收部的距离近似相等且方向不同的两点之间的环保信号的相位变化量; 以及目标选择部5,用于基于相位变化量,在从第一扫描中检测到的多个目标中进行第一次扫描之前,通过第二扫描选择与由所述目标选择的目标相同的目标。 通过这样的结构,解决了上述问题,因此提供了一种选择比以前更高精度的目标的信号选择装置。
    • 7. 发明专利
    • Rader device, target detection method, and target detection program
    • 雷达设备,目标检测方法和目标检测程序
    • JP2014006067A
    • 2014-01-16
    • JP2012139906
    • 2012-06-21
    • Furuno Electric Co Ltd古野電気株式会社
    • TAKEMOTO AYAKINUMAENO HITOSHI
    • G01S7/292G01S7/32
    • PROBLEM TO BE SOLVED: To prevent reduction of S/C of a target signal when a clutter component and a target signal are not separated from each other by target detection processing such as Doppler processing.SOLUTION: A Doppler processing unit 43 detects a target indicated by a rader reception signal supplied from a rader antenna 20 by Doppler processing to generate an output signal. An emphasis place detection unit 44 detects the target indicated by the rader reception signal supplied from the rader antenna 20 by amplitude difference detection different in a processing method from the Doppler processing to generate an output signal indicating an emphasis place to be emphasized as a target. An emphasis processing unit 45 receives the output signal of the emphasis place detection unit 44 to perform emphasis processing for setting the ratio of increasing the signal level of the emphasis place indicated by the emphasis place detection unit 44 for at least one of the rader reception signal supplied to the target detection unit 43 and the output signal of the target detection unit 43 higher than that of a signal other than the emphasis place.
    • 要解决的问题:为了防止当通过诸如多普勒处理之类的目标检测处理将杂波分量和目标信号彼此分离时的目标信号的S / C降低。解决方案:多普勒处理单元43检测指示的目标 由通过多普勒处理从雷达天线20提供的雷达接收信号产生输出信号。 强调位置检测单元44通过处理方法中的不同于多普勒处理的幅度差检测来检测由从天线20提供的由雷达接收信号指示的目标,以产生指示要强调的强调位置作为目标的输出信号。 强调处理单元45接收强调位置检测单元44的输出信号,以执行加重处理,以设置增强由强调位置检测单元44指示的强调位置的信号电平对于至少一个雷达接收信号 提供给目标检测单元43和目标检测单元43的输出信号高于除了强调位置之外的信号的输出信号。
    • 8. 发明专利
    • Automatic gain controller
    • 自动增益控制器
    • JP2008256626A
    • 2008-10-23
    • JP2007101223
    • 2007-04-09
    • Furuno Electric Co Ltd古野電気株式会社
    • TAKEMOTO AYAKINU
    • G01S7/285G01S7/32
    • PROBLEM TO BE SOLVED: To provide an automatic gain controller capable of performing adjustment of the reception sensitivity, following the noise level that varies every moment with the environment. SOLUTION: A histogram is created from sampling data of a received signal level, and a threshold level for providing a desired noise generation probability from the shape of the histogram generated is selected. The shape of the histogram is preferably specified, by using a previously prepared reference distribution function. Even if the interference wave of other radar or echo from a target are included in a sampling data, the optimal threshold can be calculated without being affected by them. COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供一种能够随着环境随时变化的噪声水平而进行接收灵敏度的调整的自动增益控制器。 解决方案:从接收信号电平的采样数据创建直方图,并且选择用于从生成的直方图的形状提供期望的噪声生成概率的阈值电平。 优选地通过使用预先准备的参考分布函数来指定直方图的形状。 即使来自目标的其他雷达或回波的干扰波被包含在采样数据中,可以计算出最佳阈值而不受它们的影响。 版权所有(C)2009,JPO&INPIT
    • 9. 发明专利
    • Radar system, and tuning processing method for the radar system
    • 雷达系统和雷达系统的调谐处理方法
    • JP2007298417A
    • 2007-11-15
    • JP2006127004
    • 2006-04-28
    • Furuno Electric Co Ltd古野電気株式会社
    • NAKAHAMA MASAHIROTAKEMOTO AYAKINUDAI KOJI
    • G01S7/282G01S7/285
    • G01S13/106
    • PROBLEM TO BE SOLVED: To provide a radar system capable of displaying display images by different detection ranges, having high visibility simultaneously, when signals having pulse widths assigned, respectively to detection ranges are transmitted and received using a single antenna.
      SOLUTION: In the radar system which transmits and receives signals having different pulse widths by a predetermined transmission sequence, a tuning voltage setting timing is generated according to the combination of two or more different transmission pulse widths, and a tuning processing unit 9 performs tuning processing, according to the pulse width of a transmission signal on the basis of the tuning voltage setting timing. When the pulse width of the transmission signal to be transmitted from a transmitter 5 is to be changed, whether to change the tuning voltage is decided, depending on the combination of the pulse widths before and after the pulse width change, and based on the decision result, the processing unit 9 performs setting of a tuning voltage.
      COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:为了提供一种雷达系统,能够通过不同的检测范围来显示具有高可视性的显示图像的雷达系统,同时具有分配给检测范围的脉冲宽度的信号使用单个天线发送和接收。 解决方案:在通过预定传输序列发送和接收具有不同脉冲宽度的信号的雷达系统中,根据两个或更多个不同传输脉冲宽度的组合产生调谐电压设置定时,以及调谐处理单元9 根据调谐电压设定定时,根据发送信号的脉冲宽度进行调谐处理。 当要从发射机5发射的发射信号的脉冲宽度被改变时,根据脉冲宽度变化之前和之后的脉冲宽度的组合,并且基于该决定,决定是否改变调谐电压 结果,处理单元9执行调谐电压的设置。 版权所有(C)2008,JPO&INPIT