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公开(公告)号：US09268025B2
公开(公告)日：2016-02-23
申请号：US13570771
申请日：2012-08-09
IPC分类号： G01S19/30 , G01S19/37 , H04B1/709 , H04B1/7105 , H04N19/60
CPC分类号： G01S19/30 , G01S19/37 , H04B1/709 , H04B1/71052 , H04N19/60
摘要： An offset estimator (e.g., a time delay, a spatial image offset, etc.) makes use of a transform approach (e.g., using Fast Fourier Transforms). The sparse nature of a cross-correlation is exploited by limiting the computation required in either or both of the forward and inverse transforms. For example, only a subset of the transform values (e.g., a regular subsampling of the values) is used. In some examples, an inverse transform yields a time aliased version of the cross-correlation. Further processing then identifies the most likely offset of the original signals by considering offsets that are consistent with the aliased output.
摘要翻译： 偏移估计器（例如，时间延迟，空间图像偏移等）利用变换方法（例如，使用快速傅里叶变换）。 通过限制正向和反向变换中的任一个或两者所需的计算来利用互相关的稀疏性质。 例如，仅使用变换值的子集（例如，值的常规二次抽样）。 在一些示例中，逆变换产生互相关的时间混叠版本。 然后，进一步的处理通过考虑与混叠输出一致的偏移来识别原始信号的最可能的偏移。
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公开(公告)号：US20140062779A1
公开(公告)日：2014-03-06
申请号：US13570771
申请日：2012-08-09
IPC分类号： G01S19/24
CPC分类号： G01S19/30 , G01S19/37 , H04B1/709 , H04B1/71052 , H04N19/60
摘要： An offset estimator (e.g., a time delay, a spatial image offset, etc.) makes use of a transform approach (e.g., using Fast Fourier Transforms). The sparse nature of a cross-correlation is exploited by limiting the computation required in either or both of the forward and inverse transforms. For example, only a subset of the transform values (e.g., a regular subsampling of the values) is used. In some examples, an inverse transform yields a time aliased version of the cross-correlation. Further processing then identifies the most likely offset of the original signals by considering offsets that are consistent with the aliased output.
摘要翻译： 偏移估计器（例如，时间延迟，空间图像偏移等）利用变换方法（例如，使用快速傅里叶变换）。 通过限制正向和反向变换中的任一个或两者所需的计算来利用互相关的稀疏性质。 例如，仅使用变换值的子集（例如，值的常规二次抽样）。 在一些示例中，逆变换产生互相关的时间混叠版本。 然后，进一步的处理通过考虑与混叠输出一致的偏移来识别原始信号的最可能的偏移。
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公开(公告)号：US20130028305A1
公开(公告)日：2013-01-31
申请号：US13562872
申请日：2012-07-31
CPC分类号： H04B7/0848 , H04J11/0023
摘要： In one aspect, a method for mitigating an effect of an interfering radio signal at a multiple antenna receiver includes forming an estimate of a relationship of the interfering signal among signals received from the multiple antennas. In general, the interfering signal does not share the same communication technology as a desired signal. The signals received from the multiple antennas filtered and combined according to the estimate of the relationship of the interfering channels to reduce an effect of the interfering signal. Desired data present in the desired signal represented in the filtered and combined signals is decoded and the estimate of the relationship of the interfering signals is updated according to the decoding of the desired signal.
摘要翻译： 一方面，减轻多天线接收机干扰无线电信号的影响的方法包括形成从多个天线接收的信号之间的干扰信号的关系的估计。 通常，干扰信号不会与所需信号共享相同的通信技术。 根据干扰信道关系的估计，从多个天线接收的信号被滤波和组合，以减少干扰信号的影响。 在滤波和组合信号中表示的期望信号中存在的期望数据被解码，并且根据期望信号的解码来更新干扰信号的关系的估计。
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公开(公告)号：US08983011B2
公开(公告)日：2015-03-17
申请号：US13562872
申请日：2012-07-31
CPC分类号： H04B7/0848 , H04J11/0023
摘要： In one aspect, a method for mitigating an effect of an interfering radio signal at a multiple antenna receiver includes forming an estimate of a relationship of the interfering signal among signals received from the multiple antennas. In general, the interfering signal does not share the same communication technology as a desired signal. The signals received from the multiple antennas filtered and combined according to the estimate of the relationship of the interfering channels to reduce an effect of the interfering signal. Desired data present in the desired signal represented in the filtered and combined signals is decoded and the estimate of the relationship of the interfering signals is updated according to the decoding of the desired signal.
摘要翻译： 一方面，减轻多天线接收机干扰无线电信号的影响的方法包括形成从多个天线接收的信号之间的干扰信号的关系的估计。 通常，干扰信号不会与所需信号共享相同的通信技术。 根据干扰信道关系的估计，从多个天线接收的信号被滤波和组合，以减少干扰信号的影响。 在滤波和组合的信号中表示的期望信号中存在的期望数据被解码，并且根据期望信号的解码来更新干扰信号的关系的估计。
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