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1.发明授权Methods, apparatuses, systems and computer readable mediums for determining location of assets 有权用于确定资产位置的方法，装置，系统和计算机可读介质公开(公告)号：US09107057B2
公开(公告)日：2015-08-11
申请号：US13839620
申请日：2013-03-15
CPC分类号： H04W4/90 , G01S5/0018 , G01S5/0036 , G01S19/48 , H04W4/02 , H04W4/029
摘要： In locating a transmitter, a central processor calculates a matched filter detector output for each of one or more candidate transmitter locations by applying a linear filter to low frequency magnetic field measurements obtained at a plurality of receiver locations. The central processor then determines the location of the transmitter based on the one or more calculated matched filter detector outputs. The linear filter is derived for the one or more candidate transmitter locations.
摘要翻译： 在定位发射机时，中央处理器通过对在多个接收机位置处获得的低频磁场测量应用线性滤波器来计算一个或多个候选发射机位置中的每一个的匹配滤波器检测器输出。 然后，中央处理器基于一个或多个计算的匹配滤波器检测器输出来确定发射机的位置。 为一个或多个候选发射机位置导出线性滤波器。
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2.发明授权Method and system for in-air ultrasonic acoustical detection and characterization 失效空气超声波声学检测和表征的方法和系统公开(公告)号：US06987707B2
公开(公告)日：2006-01-17
申请号：US10712805
申请日：2003-11-12
CPC分类号： G08B13/1618 , G01S7/52006 , G01S7/539 , G01S15/04 , G01S15/523 , G01S15/66 , G01S15/87
摘要： A system and method are presented for determining the detection and location of persons and objects using ultrasonic acoustic sensors. The system allows detection of stationary and moving persons and other objects, through atmospheric conditions, to a distance of at least 300 feet. The invention further provides for enhanced signal processing through the use of arrays of transmitters and receivers, where one or more transmitter arrays may be oriented substantially perpendicularly to one or more receiver arrays, allowing high directionality and good rejection of reverberations, background noise, clutter and objects not of interest.
摘要翻译： 提出了一种系统和方法，用于确定使用超声波传感器的人和物体的检测和位置。 该系统允许通过大气条件将固定和移动的人和其他物体检测到至少300英尺的距离。 本发明还通过使用发射器和接收器的阵列来提供增强的信号处理，其中一个或多个发射器阵列可以基本上垂直于一个或多个接收器阵列取向，允许高方向性和良好的反射混响，背景噪声，杂波和 不感兴趣的对象
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3.发明授权Signal processing incorporating signal, tracking, estimation, and removal processes using a maximum a posteriori algorithm, and sequential signal detection 失效使用最大后验算法结合信号，跟踪，估计和去除过程的信号处理以及顺序信号检测
公开(公告)号：US5315538A
公开(公告)日：1994-05-24
申请号：US860732
申请日：1992-03-23
CPC分类号： G01S7/5273 , G01S3/80 , G01S7/52001
摘要： A system and method for automating signal tracking, estimation of signal parameters, and extraction of signals from sonar data to detect weaker signals. A maximum a posteriori (MAP) algorithm processing provides a track output of the signal which is used as a guide or template to provide optimal spectral integration on an unstable or frequency varying line. The present invention includes track integration, parameter estimation, signal track normalization, and sequential signal detection. The present invention partitions the input band into frequency subwindows. For each subwindow, the strongest signal is tracked, its parameters are estimated, and then the signal is normalized (removed) from the subwindow. This is repeated until the entire subwindow set is processed. Then the subwindows, now with their strongest signals removed, are recombined to form one input band. This aggregated procedure represents one processing pass. In the next pass, the entire above procedure is repeated with either the same or new subwindow boundaries. This continues until a predetermined number of passes is completed. Sequential signal detection is provided from one data frame to the next, a problem that is beyond the capability of conventional systems and methods for tracking frequency lines of unknown frequency modulation and amplitude.
摘要翻译： 一种用于自动化信号跟踪，信号参数估计和从声纳数据中提取信号以检测较弱信号的系统和方法。 最大后验（MAP）算法处理提供信号的轨道输出，其用作指导或模板，以在不稳定或频率变化的线上提供最佳频谱积分。 本发明包括轨道积分，参数估计，信号轨迹归一化和顺序信号检测。 本发明将输入频带划分为频率子窗口。 对于每个子窗口，跟踪最强的信号，估计其参数，然后从子窗口对信号进行归一化（去除）。 直到整个子窗口集被处理为止。 然后，将其最强信号去除的子窗口重新组合以形成一个输入带。 此聚合过程代表一个处理通行证。 在下一遍中，使用相同或新的子窗口边界重复整个上述过程。 这一直持续到预定数量的通行完成。 从一个数据帧到下一个数据帧提供顺序信号检测，这是超出传统系统和跟踪未知频率调制和幅度的频率线的方法的能力的问题。
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4.发明申请METHODS, APPARATUSES, SYSTEMS AND COMPUTER READABLE MEDIUMS FOR DETERMINING LOCATION OF ASSETS 有权方法，设备，系统和计算机可读介质，用于确定资产的位置公开(公告)号：US20140273918A1
公开(公告)日：2014-09-18
申请号：US13839620
申请日：2013-03-15
CPC分类号： H04W4/90 , G01S5/0018 , G01S5/0036 , G01S19/48 , H04W4/02 , H04W4/029
摘要： In locating a transmitter, a central processor calculates a matched filter detector output for each of one or more candidate transmitter locations by applying a linear filter to low frequency magnetic field measurements obtained at a plurality of receiver locations. The central processor then determines the location of the transmitter based on the one or more calculated matched filter detector outputs. The linear filter is derived for the one or more candidate transmitter locations
摘要翻译： 在定位发射机时，中央处理器通过对在多个接收机位置处获得的低频磁场测量应用线性滤波器来计算一个或多个候选发射机位置中的每一个的匹配滤波器检测器输出。 然后，中央处理器基于一个或多个计算的匹配滤波器检测器输出来确定发射机的位置。 为一个或多个候选发射机位置导出线性滤波器
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公开(公告)号：US20080211715A1
公开(公告)日：2008-09-04
申请号：US11839616
申请日：2007-08-16
IPC分类号： G01S1/00
摘要： The present invention is directed to a global positioning system (GPS) having improved signal-to-noise ratio for reducing the required signal level for which GPS may be implemented in electronic devices or cell phones. The acquisition function of the GPS receiver is improved by inserting new signal processing for broadband noise reduction that allows subsequent improved estimation of critical time shift and frequency shift parameters needed for GPS acquisition at lower received signal levels. The decoding of the navigation bits from the satellite transmissions is improved to provide ephemeris data needed for computing navigation solutions at lower received signal levels, by examining the output of the same new signal processing for broadband noise reduction for spikes in the power of the output time series that correspond to navigation bit flips.
摘要翻译： 本发明涉及具有改进的信噪比的全球定位系统（GPS），用于减少可在电子设备或蜂窝电话中实现GPS的所需信号电平。 通过插入用于宽带噪声降低的新信号处理来改善GPS接收机的采集功能，其允许随后在较低的接收信号电平下对GPS获取所需的临界时移和频移参数进行改进的估计。 改进来自卫星传输的导航比特的解码，以通过检查相同的新信号处理的输出来提供用于以较低的接收信号电平计算导航解决方案所需的星历数据，以便在输出时间的功率中对尖峰进行宽带降噪 对应于导航位翻转的系列。
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