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1. 发明申请

US20070237213A1 METHOD FOR ESTIMATING ONE OR MORE PARAMETERS OF A ULTRA WIDEBAND SIGNAL AND A RECEIVER SYSTEM FOR RECEIVING ULTRA WIDEBAND SIGNALS 失效
标题翻译：用于估计超级宽带信号的一个或多个参数的方法和用于接收超宽带信号的接收机系统
公开(公告)号：US20070237213A1
公开(公告)日：2007-10-11
申请号：US11695415
申请日：2007-04-02
申请人： Yugang MA , Jin Xu , Xiaobing Sun , Kanzo Okada
发明人： Yugang MA , Jin Xu , Xiaobing Sun , Kanzo Okada
IPC分类号： H04B1/38 , H04L1/02 , H04B7/10
CPC分类号： H04B1/719 , H04B1/7183
摘要： A method for estimating one or more parameters of a ultra wideband signal and a receiver system for receiving ultra wideband signals is provided. The method for estimating one or more parameters of a signal in an ultra wide band system including estimating the parameter(s) for a first signal element in a received signal then removing this signal element from the signal to obtain a modified signal. The parameter(s) for a number of further signal elements are then estimated and these elements are removed from the modified signal to form a refined signal. The parameter(s) for the first signal element are re-estimated to re-define the first signal element based on the refined signal minus the signal element having the greatest amplitude. The parameter(s) for the signal element having the greatest amplitude are re-estimated to re-define this signal element. The steps are repeated to generate a refined estimate of the parameter(s) for the first signal element. There is also disclosed a receiver for performing the above steps.
摘要翻译：提供了一种用于估计超宽带信号的一个或多个参数的方法和用于接收超宽带信号的接收机系统。一种用于估计超宽带系统中的信号的一个或多个参数的方法，包括估计接收信号中的第一信号元素的参数，然后从信号中去除该信号元素以获得修改的信号。然后估计多个其它信号元素的参数，并且从修改的信号中去除这些元素以形成精确的信号。第一信号元件的参数被重新估计，以基于精化信号减去具有最大振幅的信号元件来重新定义第一信号元件。重新估计具有最大幅度的信号元素的参数以重新定义该信号元素。重复这些步骤以产生第一信号元素的参数的精确估计。还公开了一种用于执行上述步骤的接收器。

2. 发明授权

US07683825B2 Method and apparatus for measuring distance between a target and a receiver in a ranging system 失效
标题翻译：用于测量测距系统中目标和接收机之间的距离的方法和装置
公开(公告)号：US07683825B2
公开(公告)日：2010-03-23
申请号：US11810132
申请日：2007-06-04
申请人： Xiaobing Sun , Yugang Ma , Jin Xu , Kanzo Okada
发明人： Xiaobing Sun , Yugang Ma , Jin Xu , Kanzo Okada
IPC分类号： G01S13/08
CPC分类号： G01S7/28 , G01S13/103
摘要： A method of measuring distance between a target and a receiver in a ranging system may comprise transmitting a first pulse at a first time determined by a sampling clock in a receiver, receiving the first pulse, sampling the first pulse at a predetermined amplitude threshold using the sampling clock and determining the time of arrival of the first pulse in terms of a number of periods of the sampling clock after the first pulse was transmitted. This may be repeated for a second pulse and the average times of arrival of the first and second pulses are determined to obtain an averaged estimated time of arrival. The distance between the target and the receiver may be determined by multiplying the averaged estimated time of arrival by the speed of propagation of the transmitted pulses. There is also disclosed an apparatus for measuring distance.
摘要翻译：一种测量测距系统中的目标和接收机之间的距离的方法可以包括在接收机中由采样时钟确定的第一时间发射第一脉冲，接收第一脉冲，使用第一脉冲以预定的幅度阈值采样第一脉冲采样时钟，并且根据发送第一脉冲之后的采样时钟的周期数来确定第一脉冲的到达时间。这可以针对第二脉冲重复，并且确定第一和第二脉冲的平均到达次数以获得平均的估计到达时间。目标和接收机之间的距离可以通过将平均的估计到达时间乘以传输脉冲的传播速度来确定。还公开了一种用于测量距离的装置。

3. 发明申请

US20080218404A1 SYSTEM AND METHOD FOR DETERMINING POSITION OF RADAR APPARATUS BASED ON REFLECTED SIGNALS 失效
标题翻译：用于确定基于反射信号的雷达设备位置的系统和方法
公开(公告)号：US20080218404A1
公开(公告)日：2008-09-11
申请号：US11169119
申请日：2005-06-28
申请人： Yugang Ma , Xiaobing Sun , Jin Xu , Kanzo Okada
发明人： Yugang Ma , Xiaobing Sun , Jin Xu , Kanzo Okada
IPC分类号： G01S13/08
CPC分类号： G01S13/0209 , G01S13/06
摘要： A system and method for determining position of, for example, a robot based on reflected signals comprises a transmitter for transmitting signals in a number of directions within a range of directions and a receiver for receiving echoes of the signals from any direction in the range. The transmitter has a first rotatable antenna and the receiver has a second rotatable antenna which is mechanically couplable to the second antenna. The received echoes are processed by a processor to derive echo data signals indicative of the distance of the system to one or more reflective surfaces and the direction of the reflective surface(s) relative to the system. The processor is arranged to determine the position of the system relative to a starting position from the derived echo data signals indicative of the distance of the system to the reflective surface(s) and the direction of the reflective surface(s) relative to the system.
摘要翻译：用于基于反射信号来确定例如机器人的位置的系统和方法包括用于在方向范围内的多个方向上发送信号的发射机和用于从该范围内的任何方向接收信号的回波的接收机。发射器具有第一可旋转天线，并且接收器具有可机械耦合到第二天线的第二可旋转天线。所接收的回波由处理器处理以得到指示系统到一个或多个反射表面的距离和相对于系统的反射表面的方向的回波数据信号。处理器被布置成从指示系统到反射表面的距离的导出的回波数据信号和反射表面相对于系统的方向来确定系统相对于起始位置的位置。

4. 发明授权

US07579988B2 Method, device and system for determining direction of arrival of signal 失效
标题翻译：用于确定信号到达方向的方法，装置和系统
公开(公告)号：US07579988B2
公开(公告)日：2009-08-25
申请号：US11823478
申请日：2007-06-26
申请人： Jin Xu , Yugang Ma , Xiaobing Sun , Kanzo Okada
发明人： Jin Xu , Yugang Ma , Xiaobing Sun , Kanzo Okada
IPC分类号： G01S5/02 , G01S5/04 , G01S7/40
CPC分类号： G01S13/4418
摘要： A method, device and system for determining a DOA of a signal are described. Determination of the DOA of the signal may include receiving first and second UWB waveforms of the signal at one or more antennas of a UWB transceiver. A window may be defined in the first and second UWB waveforms such that the window is defined in a leading portion of the signal. First and second amplitude values of the respective first and second UWB waveforms in the window may be calculated. An amplitude ratio may be calculated with the first and second amplitude values and compared with calibration data to determine the DOA of the signal.
摘要翻译：描述用于确定信号的DOA的方法，装置和系统。确定信号的DOA可以包括在UWB收发器的一个或多个天线处接收信号的第一和第二UWB波形。可以在第一和第二UWB波形中定义窗口，使得窗口被定义在信号的前导部分中。可以计算窗口中的各个第一和第二UWB波形的第一和第二幅度值。可以用第一和第二振幅值计算振幅比，并与校准数据进行比较以确定信号的DOA。

5. 发明授权

US07468689B2 System and method for determining position of radar apparatus based on reflected signals 失效
标题翻译：基于反射信号确定雷达装置位置的系统和方法
公开(公告)号：US07468689B2
公开(公告)日：2008-12-23
申请号：US11169119
申请日：2005-06-28
申请人： Yugang Ma , Xiaobing Sun , Jin Xu , Kanzo Okada
发明人： Yugang Ma , Xiaobing Sun , Jin Xu , Kanzo Okada
IPC分类号： G01S13/42 , G01S13/48 , G01S7/03
CPC分类号： G01S13/0209 , G01S13/06
摘要： A system and method for determining position of, for example, a robot based on reflected signals comprises a transmitter for transmitting signals in a number of directions within a range of directions and a receiver for receiving echoes of the signals from any direction in the range. The transmitter has a first rotatable antenna and the receiver has a second rotatable antenna which is mechanically couplable to the second antenna. The received echoes are processed by a processor to derive echo data signals indicative of the distance of the system to one or more reflective surfaces and the direction of the reflective surface(s) relative to the system. The processor is arranged to determine the position of the system relative to a starting position from the derived echo data signals indicative of the distance of the system to the reflective surface(s) and the direction of the reflective surface(s) relative to the system.
摘要翻译：用于基于反射信号来确定例如机器人的位置的系统和方法包括用于在方向范围内的多个方向上发送信号的发射机和用于从该范围内的任何方向接收信号的回波的接收机。发射器具有第一可旋转天线，并且接收器具有可机械耦合到第二天线的第二可旋转天线。所接收的回波由处理器处理以得到指示系统到一个或多个反射表面的距离和相对于系统的反射表面的方向的回波数据信号。处理器被布置成从指示系统到反射表面的距离的导出的回波数据信号和反射表面相对于系统的方向来确定系统相对于起始位置的位置。

6. 发明授权

US07400291B2 Local positioning system which operates based on reflected wireless signals 失效
标题翻译：基于反射无线信号操作的本地定位系统
公开(公告)号：US07400291B2
公开(公告)日：2008-07-15
申请号：US10922749
申请日：2004-08-20
申请人： Jin Xu , Kanzo Okada , Xiaobing Sun , Yugang Ma , Wei Lu
发明人： Jin Xu , Kanzo Okada , Xiaobing Sun , Yugang Ma , Wei Lu
IPC分类号： G01S13/08
CPC分类号： G01S5/0252 , G01S5/0273 , G01S2013/466
摘要： A local positioning system is proposed for wirelessly locating an object using existing features within a static environment, such as walls, as the references for determining the position of the system. An antenna 16 attached to the object transmits RF signals which are reflected by the surroundings. During a training mode, the reflected signals are used to train a neural network 22, 43 to map the position of the object to the characteristics of the reflected signals. During a working mode, the trained neural network is to identify the position of the object based on reflected signals in working mode. Optionally, the reflected signals may be subject to a clustering process before input to the neural network.
摘要翻译：提出了一种本地定位系统，用于使用静态环境（如墙壁）内的现有特征将物体无线定位，作为确定系统位置的参考。安装在物体上的天线16发射被周围环境反射的RF信号。在训练模式期间，反射信号用于训练神经网络22,43以将物体的位置映射到反射信号的特性。在工作模式下，训练有素的神经网络是根据工作模式下的反射信号识别物体的位置。可选地，反射信号可以在输入到神经网络之前进行聚类处理。

7. 发明申请

US20080012765A1 Method, device and system for determining direction of arrival of signal 失效
标题翻译：用于确定信号到达方向的方法，装置和系统
公开(公告)号：US20080012765A1
公开(公告)日：2008-01-17
申请号：US11823478
申请日：2007-06-26
申请人： Jin Xu , Yugang Ma , Xiaobing Sun , Kanzo Okada
发明人： Jin Xu , Yugang Ma , Xiaobing Sun , Kanzo Okada
IPC分类号： G01S5/04
CPC分类号： G01S13/4418
摘要： A method, device and system for determining a DOA of a signal are described. Determination of the DOA of the signal may include receiving first and second UWB waveforms of the signal at one or more antennas of a UWB transceiver. A window may be defined in the first and second UWB waveforms such that the window is defined in a leading portion of the signal. First and second amplitude values of the respective first and second UWB waveforms in the window may be calculated. An amplitude ratio may be calculated with the first and second amplitude values and compared with calibration data to determine the DOA of the signal.
摘要翻译：描述用于确定信号的DOA的方法，装置和系统。确定信号的DOA可以包括在UWB收发器的一个或多个天线处接收信号的第一和第二UWB波形。可以在第一和第二UWB波形中定义窗口，使得窗口被定义在信号的前导部分中。可以计算窗口中的各个第一和第二UWB波形的第一和第二幅度值。可以用第一和第二振幅值计算振幅比，并与校准数据进行比较以确定信号的DOA。

8. 发明申请

US20080024355A1 Method and apparatus for measuring distance between a target and a receiver in a ranging system 失效
标题翻译：用于测量测距系统中目标和接收机之间的距离的方法和装置
公开(公告)号：US20080024355A1
公开(公告)日：2008-01-31
申请号：US11810132
申请日：2007-06-04
申请人： Xiaobing Sun , Yugang Ma , Jin Xu , Kanzo Okada
发明人： Xiaobing Sun , Yugang Ma , Jin Xu , Kanzo Okada
IPC分类号： G01S13/08
CPC分类号： G01S7/28 , G01S13/103
摘要： A method of measuring distance between a target and a receiver in a ranging system may comprise transmitting a first pulse at a first time determined by a sampling clock in a receiver, receiving the first pulse, sampling the first pulse at a predetermined amplitude threshold using the sampling clock and determining the time of arrival of the first pulse in terms of a number of periods of the sampling clock after the first pulse was transmitted. This may be repeated for a second pulse and the average times of arrival of the first and second pulses are determined to obtain an averaged estimated time of arrival. The distance between the target and the receiver may be determined by multiplying the averaged estimated time of arrival by the speed of propagation of the transmitted pulses. There is also disclosed an apparatus for measuring distance.
摘要翻译：一种测量测距系统中的目标和接收机之间的距离的方法可以包括在接收机中由采样时钟确定的第一时间发射第一脉冲，接收第一脉冲，使用第一脉冲以预定的幅度阈值采样第一脉冲采样时钟，并且根据发送第一脉冲之后的采样时钟的周期数来确定第一脉冲的到达时间。这可以针对第二脉冲重复，并且确定第一和第二脉冲的平均到达次数以获得平均的估计到达时间。目标和接收机之间的距离可以通过将平均的估计到达时间乘以传输脉冲的传播速度来确定。还公开了一种用于测量距离的装置。

9. 发明申请

US20050122252A1 Local positioning system which operates based on reflected wireless signals 失效
标题翻译：基于反射无线信号操作的本地定位系统
公开(公告)号：US20050122252A1
公开(公告)日：2005-06-09
申请号：US10922749
申请日：2004-08-20
申请人： Jin Xu , Kanzo Okada , Xiaobing Sun , Yugang Ma , Wei Lu
发明人： Jin Xu , Kanzo Okada , Xiaobing Sun , Yugang Ma , Wei Lu
IPC分类号： G01S19/48 , G01S5/02 , G01S13/08
CPC分类号： G01S5/0252 , G01S5/0273 , G01S2013/466
摘要： A local positioning system is proposed for wirelessly locating an object using existing features within a static environment, such as walls, as the references for determining the position of the system. An antenna 16 attached to the object transmits RF signals which are reflected by the surroundings. During a training mode, the reflected signals are used to train a neural network 22, 43 to map the position of the object to the characteristics of the reflected signals. During a working mode, the trained neural network is to identify the position of the object based on reflected signals in working mode. Optionally, the reflected signals may be subject to a clustering process before input to the neural network.
摘要翻译：提出了一种本地定位系统，用于使用静态环境（如墙壁）内的现有特征将物体无线定位，作为确定系统位置的参考。安装在物体上的天线16发射被周围环境反射的RF信号。在训练模式期间，反射信号用于训练神经网络22,43以将物体的位置映射到反射信号的特性。在工作模式下，训练有素的神经网络是根据工作模式下的反射信号识别物体的位置。可选地，反射信号可以在输入到神经网络之前进行聚类处理。

10. 发明授权

US08054863B2 Ranging system and method 失效
标题翻译：测距系统和方法
公开(公告)号：US08054863B2
公开(公告)日：2011-11-08
申请号：US12132776
申请日：2008-06-04
申请人： Yugang Ma , Xiaobing Sun , Kanzo Okada , Jian Zhang , Junjun Wang
发明人： Yugang Ma , Xiaobing Sun , Kanzo Okada , Jian Zhang , Junjun Wang
IPC分类号： H04B1/00
CPC分类号： G01S7/285 , G01S13/0209 , G01S13/103 , H04B1/7163
摘要： A system for estimating range to an object comprising a system for estimating range to an object comprising a transmitter to transmit at least one UWB signal, a receiver to receive at least one UWB signal, a sampler to sample the received UWB signal depending on a plurality of clock and/or sample pulses having a first frequency, and a circuit and/or processor configured to generate a fractional signal having a second frequency that is lower that the first frequency and a phase that is dependant on the delay between when the UWB signal is actually received and when the received UWB signal is first sampled, and determine the range based on at least a first number of clock or sample pulses between transmitting and receiving the UWB signal and the phase of the fractional signal. Also a method of estimating range to an object.
摘要翻译：一种用于估计对象的范围的系统，包括用于估计到包括发送器的对象的范围的系统的系统，用于发送至少一个UWB信号，接收器接收至少一个UWB信号，采样器根据多个样本对所接收的UWB信号进行采样具有第一频率的时钟和/或采样脉冲，以及电路和/或处理器，其被配置为生成具有第二频率的分数信号，该第二频率低于第一频率和取决于UWB信号之间的延迟的相位实际上被接收并且当接收到的UWB信号被首先采样时，并且基于在发送和接收UWB信号之间的至少第一数量的时钟或采样脉冲和分数信号的相位来确定该范围。也是估计对象的范围的方法。

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