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1. 发明申请

US20100241378A1 Method and Apparatus for Compressive Parameter Estimation and Tracking 有权
标题翻译：用于压缩参数估计和跟踪的方法和装置
公开(公告)号：US20100241378A1
公开(公告)日：2010-09-23
申请号：US12727898
申请日：2010-03-19
申请人： Richard G. Baraniuk , Petros T. Boufounos , Stephen R. Schnelle , Mark A. Davenport , Jason N. Laska
发明人： Richard G. Baraniuk , Petros T. Boufounos , Stephen R. Schnelle , Mark A. Davenport , Jason N. Laska
IPC分类号： G06F19/00
CPC分类号： H03L7/091 , H03L7/07 , H03L7/0805 , H03L7/087
摘要： We have developed a new method and apparatus for tracking and estimating parameters of locally oscillating signals from measurements that approximately preserve the inner product among signals in a class of signals of interest. Random demodulation, random sampling, and coset sampling are three prime examples of these techniques.One example of this is a compressive phase locked loops (PLL), which has a wide variety of applications, including but not limited to communications, phase tracking, robust control, sensing, and frequency modulation (FM) demodulation. The design modifies classical PLL designs to operate with CS-based sampling systems. By introducing a compressive sampler at the output of the oscillator and by appropriately adjusting the phase difference estimator we enable the use of PLLs with modern CS sampling technology. Other modifications can be made to reduce concerns such as normalization of the measurements, for example using the QCS-PLL.The concept of democracy is also introduced into a CS-PLL with quantization effects. Due to the universality of compressive measurements, we can drop a few saturated measurements, yet still get just as good or better performance than if we had allowed the quantizer to saturate.The CS-PLL and QCS-PLL enable one to track oscillating signals in very large bandwidths using a small number of measurements. In addition to potentially operating below the Nyquist rate, however, our new PLL designs offer very low computational complexity that does not involve intermediate compressive sensing signal reconstruction.
摘要翻译：我们已经开发了一种新的方法和装置，用于跟踪和估计本地振荡信号的参数，这些测量大致保留了一类感兴趣信号中的信号之间的内积。随机解调，随机抽样和陪集抽样是这些技术的三个主要例子。其一个例子是压缩锁相环（PLL），其具有广泛的应用，包括但不限于通信，相位跟踪，鲁棒控制，感测和频率调制（FM）解调。该设计修改了经典的PLL设计，使用基于CS的采样系统进行操作。通过在振荡器的输出端引入压缩采样器，并通过适当调整相位差估计器，可以使用具有现代CS采样技术的PLL。可以进行其他修改以减少诸如使用QCS-PLL的测量的归一化等问题。民主的概念也被引入到具有量化效应的CS-PLL中。由于压缩测量的普遍性，我们可以减少一些饱和度测量，但是如果我们允许量化器饱和，仍然可以获得同样好或更好的性能。 CS-PLL和QCS-PLL使得能够使用少量测量来跟踪非常大带宽中的振荡信号。然而，除了可能低于奈奎斯特速率的操作之外，我们的新PLL设计提供了非常低的计算复杂度，不涉及中间压缩感测信号重建。

2. 发明申请

US20110215856A1 Method And Apparatus For Automatic Gain Control for Nonzero Saturation Rates 有权
标题翻译：用于非零饱和率的自动增益控制的方法和装置
公开(公告)号：US20110215856A1
公开(公告)日：2011-09-08
申请号：US13033188
申请日：2011-02-23
申请人： Richard G. Baraniuk , Jason N. Laska , Petros T. Boufounos , Mark A. Davenport
发明人： Richard G. Baraniuk , Jason N. Laska , Petros T. Boufounos , Mark A. Davenport
IPC分类号： H03L5/00
CPC分类号： H03L5/00
摘要： A method for automatic gain control comprising the steps of measuring a signal using compressed sensing to produce a sequence of blocks of measurements, applying a gain to one of the blocks of measurements, adjusting the gain based upon a deviation of a saturation rate of the one of the blocks of measurements from a predetermined nonzero saturation rate and applying the adjusted gain to a second of the blocks of measurements. Alternatively, a method for automatic gain control comprising the steps of applying a gain to a signal, computing a saturation rate of the signal and adjusting the gain based upon a difference between the saturation rate of the signal and a predetermined nonzero saturation rate.
摘要翻译：一种用于自动增益控制的方法，包括以下步骤：使用压缩感测来测量信号，以产生一系列测量结果，将增益应用于测量块之一，根据一个饱和度的偏差来调整增益的来自预定非零饱和率的测量块，并将调整后的增益应用于第二测量块。或者，一种用于自动增益控制的方法，包括以下步骤：基于信号的饱和速率与预定的非零饱和率之间的差异，向信号施加增益，计算信号的饱和率和调整增益。

3. 发明授权

US08456345B2 Method and apparatus for signal reconstruction from saturated measurements 有权
标题翻译：饱和测量信号重构方法和装置
公开(公告)号：US08456345B2
公开(公告)日：2013-06-04
申请号：US13033212
申请日：2011-02-23
申请人： Richard G. Baraniuk , Jason N. Laska , Petros T. Boufounos , Mark A. Davenport
发明人： Richard G. Baraniuk , Jason N. Laska , Petros T. Boufounos , Mark A. Davenport
IPC分类号： H03M1/12
CPC分类号： H03M1/661 , H03M7/30
摘要： A method for recovering a signal by measuring the signal to produce a plurality of compressive sensing measurements, discarding saturated measurements from the plurality of compressive sensing measurements and reconstructing the signal from remaining measurements from the plurality of compressive sensing measurements. Alternatively, a method for recovering a signal comprising the steps of measuring a signal to produce a plurality of compressive sensing measurements, identifying saturated measurements in the plurality of compressive sensing measurements and reconstructing the signal from the plurality of compressive sensing measurements, wherein the recovered signal is constrained such that magnitudes of values corresponding to the identified saturated measurements are greater than a predetermined value.
摘要翻译：一种通过测量信号以产生多个压缩感测测量来消除信号的方法，从多个压缩感测测量中舍弃饱和测量值，并从多个压缩感测测量中的剩余测量重构信号。或者，一种用于恢复信号的方法，包括以下步骤：测量信号以产生多个压缩感测测量，识别所述多个压缩感测测量中的饱和测量值，以及从所述多个压缩感测测量值重建所述信号，其中所述恢复信号被约束，使得对应于所识别的饱和测量的值的大小大于预定值。

4. 发明授权

US08566053B2 Method and apparatus for compressive parameter estimation and tracking 有权
标题翻译：用于压缩参数估计和跟踪的方法和装置
公开(公告)号：US08566053B2
公开(公告)日：2013-10-22
申请号：US12727898
申请日：2010-03-19
申请人： Richard G. Baraniuk , Petros T. Boufounos , Stephen R. Schnelle , Mark A. Davenport , Jason N. Laska
发明人： Richard G. Baraniuk , Petros T. Boufounos , Stephen R. Schnelle , Mark A. Davenport , Jason N. Laska
IPC分类号： G01R13/00 , G01R13/02 , G01R13/36 , G01R13/38
CPC分类号： H03L7/091 , H03L7/07 , H03L7/0805 , H03L7/087
摘要： A method for estimating and tracking locally oscillating signals. The method comprises the steps of taking measurements of an input signal that approximately preserve the inner products among signals in a class of signals of interest and computing an estimate of parameters of the input signal from its inner products with other signals. The step of taking measurements may be linear and approximately preserve inner products, or may be non-linear and approximately preserves inner products. Further, the step of taking measurements is nonadaptive and may comprise compressive sensing. In turn, the compressive sensing may comprise projection using one of a random matrix, a pseudorandom matrix, a sparse matrix and a code matrix. The step of tracking said signal of interest with a phase-locked loop may comprise, for example, operating on compressively sampled data or by operating on compressively sampled frequency modulated data, tracking phase and frequency.
摘要翻译：一种用于估计和跟踪局部振荡信号的方法。该方法包括以下步骤：对感兴趣信号类别中的信号之间大致保留内积的输入信号进行测量，并从其内部乘积与其它信号计算输入信号的参数估计。进行测量的步骤可以是线性的并且大致保留内部产品，或者可以是非线性的并且大致保留内部产品。此外，进行测量的步骤是非适应性的并且可以包括压缩感测。反过来，压缩感测可以包括使用随机矩阵，伪随机矩阵，稀疏矩阵和代码矩阵之一的投影。用锁相环跟踪所述感兴趣的信号的步骤可以包括例如对压缩采样的数据进行操作，或者通过对压缩采样的调频数据，跟踪相位和频率进行操作。

5. 发明授权

US08487796B2 Method and apparatus for automatic gain control for nonzero saturation rates 有权
标题翻译：用于非零饱和率自动增益控制的方法和装置
公开(公告)号：US08487796B2
公开(公告)日：2013-07-16
申请号：US13033188
申请日：2011-02-23
申请人： Richard G. Baraniuk , Jason N. Laska , Petros T. Boufounos , Mark A. Davenport
发明人： Richard G. Baraniuk , Jason N. Laska , Petros T. Boufounos , Mark A. Davenport
IPC分类号： H03M1/84
CPC分类号： H03L5/00
摘要： A method for automatic gain control comprising the steps of measuring a signal using compressed sensing to produce a sequence of blocks of measurements, applying a gain to one of the blocks of measurements, adjusting the gain based upon a deviation of a saturation rate of the one of the blocks of measurements from a predetermined nonzero saturation rate and applying the adjusted gain to a second of the blocks of measurements. Alternatively, a method for automatic gain control comprising the steps of applying a gain to a signal, computing a saturation rate of the signal and adjusting the gain based upon a difference between the saturation rate of the signal and a predetermined nonzero saturation rate.
摘要翻译：一种用于自动增益控制的方法，包括以下步骤：使用压缩感测来测量信号，以产生一系列测量结果，将增益应用于测量块之一，根据一个饱和度的偏差来调整增益的来自预定非零饱和率的测量块，并将调整后的增益应用于第二测量块。或者，一种用于自动增益控制的方法，包括以下步骤：基于信号的饱和速率与预定的非零饱和率之间的差异，向信号施加增益，计算信号的饱和率和调整增益。

6. 发明申请

US20110241917A1 Method And Apparatus For Signal Reconstruction From Saturated Measurements 有权
标题翻译：饱和测量信号重建方法与装置
公开(公告)号：US20110241917A1
公开(公告)日：2011-10-06
申请号：US13033212
申请日：2011-02-23
申请人： Richard G. Baraniuk , Jason N. Laska , Petros T. Boufounos , Mark A. Davenport
发明人： Richard G. Baraniuk , Jason N. Laska , Petros T. Boufounos , Mark A. Davenport
IPC分类号： H03M1/00
CPC分类号： H03M1/661 , H03M7/30
摘要： A method for recovering a signal by measuring the signal to produce a plurality of compressive sensing measurements, discarding saturated measurements from the plurality of compressive sensing measurements and reconstructing the signal from remaining measurements from the plurality of compressive sensing measurements. Alternatively, a method for recovering a signal comprising the steps of measuring a signal to produce a plurality of compressive sensing measurements, identifying saturated measurements in the plurality of compressive sensing measurements and reconstructing the signal from the plurality of compressive sensing measurements, wherein the recovered signal is constrained such that magnitudes of values corresponding to the identified saturated measurements are greater than a predetermined value.
摘要翻译：一种通过测量信号以产生多个压缩感测测量来消除信号的方法，从多个压缩感测测量中舍弃饱和测量值，并从多个压缩感测测量中的剩余测量重构信号。或者，一种用于恢复信号的方法，包括以下步骤：测量信号以产生多个压缩感测测量，识别所述多个压缩感测测量中的饱和测量值，以及从所述多个压缩感测测量值重建所述信号，其中所述恢复信号被约束，使得对应于所识别的饱和测量的值的大小大于预定值。

7. 发明授权

US08725784B2 Method and apparatus for compressive domain filtering and interference cancellation 有权
标题翻译：用于压缩域滤波和干扰消除的方法和装置
公开(公告)号：US08725784B2
公开(公告)日：2014-05-13
申请号：US13257481
申请日：2010-03-19
申请人： Mark A. Davenport , Petros T. Boufounos , Richard G. Baraniuk
发明人： Mark A. Davenport , Petros T. Boufounos , Richard G. Baraniuk
IPC分类号： G06F17/10
CPC分类号： H03M7/30
摘要： A method for compressive domain filtering and interference cancelation processes compressive measurements to eliminate or attenuate interference while preserving the information or geometry of the set of possible signals of interest. A signal processing apparatus assumes that the interfering signal lives in or near a known subspace that is partially or substantially orthogonal to the signal of interest, and then projects the compressive measurements into an orthogonal subspace and thus eliminate or attenuate the interference. This apparatus yields a modified set of measurements that can provide a stable embedding of the set of signals of interest, in which case it is guaranteed that the processed measurements retain sufficient information to enable the direct recovery of this signal of interest, or alternatively to enable the use of efficient compressive-domain algorithms for further processing. The method and apparatus operate directly on the compressive measurements to remove or attenuate unwanted signal components.
摘要翻译：用于压缩域滤波和干扰消除的方法处理压缩测量以消除或衰减干扰，同时保留感兴趣的一组可能信号的信息或几何。信号处理装置假设干扰信号存在于与感兴趣的信号部分或基本上正交的已知子空间中或附近，然后将压缩测量投影到正交子空间中，从而消除或衰减干扰。该装置产生修改的测量集合，其可以提供感兴趣的信号组的稳定嵌入，在这种情况下，保证所处理的测量保持足够的信息以使得能够直接恢复该感兴趣的信号，或者替代地使能使用有效的压缩域算法进行进一步处理。该方法和装置直接在压缩测量上操作以去除或衰减不需要的信号分量。

8. 发明申请

US20120016921A1 Method and Apparatus for Compressive Domain Filtering and Interference Cancellation 有权
标题翻译：用于压缩域过滤和干扰消除的方法和装置
公开(公告)号：US20120016921A1
公开(公告)日：2012-01-19
申请号：US13257481
申请日：2010-03-19
申请人： Mark A Davenport , Petros T. Boufounos , Richard G. Baraniuk
发明人： Mark A Davenport , Petros T. Boufounos , Richard G. Baraniuk
IPC分类号： G06F17/10
CPC分类号： H03M7/30
摘要： A method for compressive domain filtering and interference cancelation processes compressive measurements to eliminate or attenuate interference while preserving the information or geometry of the set of possible signals of interest. A signal processing apparatus assumes that the interfering signal lives in or near a known subspace that is partially or substantially orthogonal to the signal of interest, and then projects the compressive measurements into an orthogonal subspace and thus eliminate or attenuate the interference. This apparatus yields a modified set of measurements that can provide a stable embedding of the set of signals of interest, in which case it is guaranteed that the processed measurements retain sufficient information to enable the direct recovery of this signal of interest, or alternatively to enable the use of efficient compressive-domain algorithms for further processing. The method and apparatus operate directly on the compressive measurements to remove or attenuate unwanted signal components.
摘要翻译：用于压缩域滤波和干扰消除的方法处理压缩测量以消除或衰减干扰，同时保留感兴趣的一组可能信号的信息或几何。信号处理装置假设干扰信号存在于与感兴趣的信号部分或基本上正交的已知子空间中或附近，然后将压缩测量投影到正交子空间中，从而消除或衰减干扰。该装置产生修改的测量集合，其可以提供感兴趣的信号组的稳定嵌入，在这种情况下，保证所处理的测量结果保持足够的信息以使得能够直接恢复该感兴趣的信号，或者可选地使能使用有效的压缩域算法进行进一步处理。该方法和装置直接在压缩测量上操作以去除或衰减不需要的信号分量。

9. 发明申请

US20090222226A1 Method and Apparatus for On-Line Compressed Sensing 有权
标题翻译：在线压缩感应的方法与装置
公开(公告)号：US20090222226A1
公开(公告)日：2009-09-03
申请号：US12091340
申请日：2006-10-25
申请人： Richard G. Baraniuk , Dror Z. Baron , Marco F. Duarte , Mohamed Elnozahi , Michael B. Wakin , Mark A. Davenport , Jason N. Laska , Joel A. Tropp , Yehia Massoud , Sami Kirolos , Tamer Ragheb
发明人： Richard G. Baraniuk , Dror Z. Baron , Marco F. Duarte , Mohamed Elnozahi , Michael B. Wakin , Mark A. Davenport , Jason N. Laska , Joel A. Tropp , Yehia Massoud , Sami Kirolos , Tamer Ragheb
IPC分类号： G06F19/00
CPC分类号： H03M1/1245 , H03M13/11
摘要： A typical data acquisition system takes periodic samples of a signal, image, or other data, often at the so-called Nyquist/Shannon sampling rate of two times the data bandwidth in order to ensure that no information is lost. In applications involving wideband signals, the Nyquist/Shannon sampling rate is very high, even though the signals may have a simple underlying structure. Recent developments in mathematics and signal processing have uncovered a solution to this Nyquist/Shannon sampling rate bottlenck for signals that are sparse or compressible in some representation. We demonstrate and reduce to practice methods to extract information directly from an analog or digital signal based on altering our notion of sampling to replace uniform time samples with more general linear functionals. One embodiment of our invention is a low-rate analog-to-information converter that can replace the high-rate analog-to-digital converter in certain applications involving wideband signals. Another embodiment is an encoding scheme for wideband discrete-time signals that condenses their information content.
摘要翻译：典型的数据采集系统通常以数据带宽的两倍的所谓奈奎斯特/香农采样速率对信号，图像或其他数据进行周期性采样，以确保没有信息丢失。在涉及宽带信号的应用中，奈奎斯特/香农采样率非常高，即使信号可能具有简单的底层结构。数学和信号处理方面的最新发展已经揭示了在某些表示中稀疏或可压缩的信号的奈奎斯特/香农采样率瓶颈的解决方案。我们展示和减少实践方法，直接从模拟或数字信号中提取信息，这是基于改变我们的抽样概念以用更一般的线性函数代替均匀的时间样本。本发明的一个实施例是一种低速模拟信息转换器，其可在涉及宽带信号的某些应用中替代高速率模数转换器。另一实施例是用于缩小其信息内容的宽带离散时间信号的编码方案。

10. 发明申请

US20120213270A1 Method and Apparatus for Compressive Imaging Device 有权
标题翻译：压缩成像装置的方法和装置
公开(公告)号：US20120213270A1
公开(公告)日：2012-08-23
申请号：US13462212
申请日：2012-05-02
申请人： Richard G. Baraniuk , Dror Z. Baron , Marco F. Duarte , Kevin F. Kelly , Courtney C. Lane , Jason N. Laska , Dharmpal Takhar , Michael B. Wakin
发明人： Richard G. Baraniuk , Dror Z. Baron , Marco F. Duarte , Kevin F. Kelly , Courtney C. Lane , Jason N. Laska , Dharmpal Takhar , Michael B. Wakin
IPC分类号： H04N7/26
CPC分类号： H04L25/20 , H04N3/08 , H04N5/335
摘要： A new digital image/video camera that directly acquires random projections of the incident light field without first collecting the pixels/voxels. In one preferred embodiment, the camera employs a digital micromirror array to perform optical calculations of linear projections of an image onto pseudorandom binary patterns. Its hallmarks include the ability to obtain an image with only a single detection element while measuring the image/video fewer times than the number of pixels or voxels—this can significantly reduce the computation required for image/video acquisition/encoding. Since the system features a single photon detector, it can also be adapted to image at wavelengths that are currently impossible with conventional CCD and CMOS imagers.
摘要翻译：一种新的数字图像/摄像机，可以直接获取入射光场的随机投影，而无需首先收集像素/体元。在一个优选实施例中，相机采用数字微镜阵列来执行图像到伪随机二进制图案的线性投影的光学计算。其标志包括仅在单个检测元素获得图像的能力，同时测量图像/视频比像素或体素数少的次数 - 这可以显着降低图像/视频采集/编码所需的计算量。由于该系统具有单个光子检测器，因此它也可适用于目前与常规CCD和CMOS成像器不可能的波长成像。

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