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1.发明授权Phase arrays exploiting geometry phase and methods of creating such arrays 失效利用几何阶段的阶段数组和创建这样的数组的方法公开(公告)号：US07714782B2
公开(公告)日：2010-05-11
申请号：US11796463
申请日：2007-04-26
IPC分类号： G01S13/00
CPC分类号： G01S3/74 , G01S3/54 , H01Q3/2629 , H01Q21/22
摘要： In the context of array sensors such as radar, sonar, and communications receiver arrays, the present invention exploits the geometry phase components of radiated wavefronts associated with the signals of interest in order to reduce the bandwidth requirements for DOA and beamforming processing. Additionally, geometry phase is exploited in order to effectively increase the resolution of an array without changing the size of its physical footprint or the number of array elements. Other embodiments of the invention include the use of virtual array elements for increase in effective array size.
摘要翻译： 在诸如雷达，声纳和通信接收机阵列的阵列传感器的上下文中，本发明利用与感兴趣的信号相关联的辐射波阵面的几何相位分量，以便减少对DOA和波束成形处理的带宽要求。 另外，为了有效地增加阵列的分辨率而不改变其物理占用面积或数组元素的数量，利用了几何相位。 本发明的其他实施例包括使用虚拟阵列元件来增加有效的阵列大小。
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公开(公告)号：US06771723B1
公开(公告)日：2004-08-03
申请号：US09616770
申请日：2000-07-14
IPC分类号： H04B110
CPC分类号： G01S7/2921
摘要： Disclosed is an apparatus and method for improving the detection of signals obscured by either correlated Gaussian or non-Gaussian noise plus additive white noise. Estimates from multichannel data of model parameters that describe the noise disturbance correlation are obtained from data that contain signal-free data vectors, referred to as “secondary” or “reference” cell data. These parameters form the coefficients of a multichannel whitening filter. A data vector to be tested for the presence of a signal passes through the multichannel whitening filter. The filter output is then processed to form a test statistic. The test statistic is compared to a threshold value to decide whether a signal is “present” or “absent.” The method is effective in detecting targets without knowledge of the non-Gaussian noise statistics.
摘要翻译： 公开了一种用于改进由相关的高斯或非高斯噪声加上加性白噪声遮蔽的信号的检测的装置和方法。 来自描述噪声干扰相关性的模型参数的多通道数据的估计是从包含无信号数据向量（称为“次要”或“参考”）单元数据的数据获得的。 这些参数形成多通道白化滤波器的系数。 要测试信号的存在的数据向量通过多通道白化滤波器。 然后处理过滤器输出以形成测试统计量。 将测试统计量与阈值进行比较，以确定信号是否“存在”或“不存在”。 该方法在没有非高斯噪声统计知识的情况下有效地检测目标。
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公开(公告)号：US06226321B1
公开(公告)日：2001-05-01
申请号：US09074821
申请日：1998-05-08
IPC分类号： H04B346
摘要： Apparatus and method for improving the detection of signals obscured by either correlated Gaussian or non-Gaussian noise plus additive white Gaussian noise using Estimates from multi-channel data of model parameters that describe the noise disturbance correlation are obtained from data that contain signal-free data vectors, referred to as “secondary” or “reference” cell data. These parameters form the coefficients of a multi-channel whitening filter. A data vector to be tested for the presence of a signal passes through the multi-channel whitening filter. The filter's output is then processed to form a test statistic. The test statistic is compared to a threshold value to decide whether a signal is “present” or “absent”. Embodiments of the apparatus and method include estimating the signal amplitude both implicitly and explicitly and calculating test statistics for signal detection in both Gaussian and non-Gaussian noise.
摘要翻译： 使用描述噪声干扰相关性的模型参数的来自多通道数据的估计值，通过相关高斯或非高斯噪声加上加性白高斯噪声遮蔽的信号检测装置和方法来自包含无信号数据的数据 向量，称为“次”或“参考”单元数据。 这些参数形成多通道白化滤波器的系数。 要测试信号的存在的数据向量通过多通道白化滤波器。 然后处理过滤器的输出以形成测试统计量。 将测试统计量与阈值进行比较，以确定信号是“存在”还是“不存在”。 该装置和方法的实施例包括：隐含地和明确地估计信号幅度，并计算高斯和非高斯噪声中的信号检测的测试统计。
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