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1. 发明申请

WO2015100237A3 LOCALIZATION WITH NON-SYNCHRONOUS EMISSION AND MULTIPATH TRANSMISSION 审中-公开
标题翻译：非同步发射和多径传输定位
公开(公告)号：WO2015100237A3
公开(公告)日：2015-08-20
申请号：PCT/US2014071891
申请日：2014-12-22
申请人： MASSACHUSETTS INST TECHNOLOGY
发明人： KUMAR SWARUN SURESH , KATABI DINA
IPC分类号： G01S3/48 , G01S3/46 , G01S3/52
CPC分类号： G01S3/14 , G01S3/04 , G01S3/46 , G01S3/48 , G01S3/52 , G01S3/72 , G01S5/0273 , G01S13/48 , G01S13/9023 , G01S19/14 , G01S19/24 , G01S2013/9082 , H04L27/2601 , H04W64/00
摘要： Directional characterization of a location of a target device makes use of multiple radio transmissions that are received from the target device. In some examples, each radio transmission is received at a first antenna at a fixed location, and is also received at a second moving antenna. The received transmissions are combined to determine the directional characterization, for example, as a distribution of power as a function of direction. In some examples, the received radio transmissions are processed to determine, for each of a plurality of directions of arrival of the radio transmissions, a most direct direction of arrival, for example, to distinguish a direct path from a reflected path from the target.
摘要翻译：目标设备的位置的定向表征利用从目标设备接收到的多个无线电传输。在一些示例中，每个无线电传输在固定位置处的第一天线处被接收，并且还在第二移动天线处被接收。组合接收到的传输以确定方向特性，例如，作为方向的函数的功率分配。在一些示例中，对接收到的无线电传输进行处理以针对无线电传输的多个到达方向中的每一个确定最直接的到达方向，例如以从反射路径与目标区分直接路径。

2. 发明申请

WO2016003526A3 INDOOR LOCALIZATION OF A MULTI-ANTENNA RECEIVER 审中-公开
标题翻译：室内本地化的多天线接收机
公开(公告)号：WO2016003526A3
公开(公告)日：2016-04-07
申请号：PCT/US2015026404
申请日：2015-04-17
申请人： MASSACHUSETTS INST TECHNOLOGY
发明人： KUMAR SWARUN SURESH , GIL STEPHANIE , KATABI DINA , RUS DANIELA
IPC分类号： H04W24/00
CPC分类号： G01S5/10 , G01S5/0215 , G01S5/0247 , G01S5/0263 , G01S5/08 , G01S5/163
摘要： An approach to localization in an indoor environment makes use of a multiple antenna receiver (e.g., in a smartphone, tablet, camera) and knowledge of locations of one or more radio transmitters, which may be part of a data communication infrastructure providing data communication services to devices in the environment. Successive measurements of transmissions from the transmitters are recorded at the receiver as the device is translated and rotated in the environment. Rotation related measurements are also made at the device. The radio frequency and rotation related measurements are used to infer the location and orientation, together referred to as the pose, of the device. Phase synchronization of the transmitters and the receiver are not required. In general, accuracy of the pose estimate far exceeds that achievable using radio frequency measurements without taking into consideration motion of the device, and far exceeds that achievable using the inertial measurements alone.
摘要翻译：在室内环境中定位的方法利用多天线接收器（例如，在智能手机，平板电脑，相机中）以及一个或多个无线发射器的位置的知识，所述一个或多个无线发射器可以是提供数据通信服务的数据通信基础设施的一部分到环境中的设备。在设备在环境中翻译和旋转时，接收机会记录来自发射机的连续测量数据。旋转相关的测量也在设备上进行。射频和旋转相关的测量用于推断设备的位置和方向，统称为姿态。发送器和接收器的相位同步不是必需的。通常，姿态估计的准确度远远超过使用射频测量可实现的精度，而不考虑设备的运动，并远远超过单独使用惯性测量可实现的精度。

3. 发明申请

WO2015156847A2 CHARACTERIZING MULTIPATH DELAYS IN ANTENNA ARRAY AND SYNTHETIC APERTURE RADAR SYSTEMS 审中-公开
标题翻译：表征天线阵列和合成孔径雷达系统的多波段延迟
公开(公告)号：WO2015156847A2
公开(公告)日：2015-10-15
申请号：PCT/US2014071916
申请日：2014-12-22
申请人： MASSACHUSETTS INST TECHNOLOGY
发明人： KUMAR SWARUN SURESH , KATABI DINA
CPC分类号： G01S3/14 , G01S3/04 , G01S3/46 , G01S3/48 , G01S3/52 , G01S3/72 , G01S5/0273 , G01S13/48 , G01S13/9023 , G01S19/14 , G01S19/24 , G01S2013/9082 , H04L27/2601 , H04W64/00
摘要： Multiple radio transmissions are processed to determine, for each of a number of directions of arrival of the radio transmissions, a most direct direction of arrival, for example, to distinguish a direct path from a reflected path from the target. In some examples, the radio transmissions include multiple frequency components, and channel characteristics at different frequencies are compared to determine the direct path.
摘要翻译：处理多个无线电传输以针对无线电传输的多个方向的到达方向中的每一个确定最直接的到达方向，例如，将直接路径与来自目标的反射路径区分开。在一些示例中，无线电传输包括多个频率分量，并且比较不同频率的信道特性以确定直接路径。

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