Persymmetric parametric adaptive matched filters for detecting targets using space-time adaptive processing of radar signals
    1.
    发明授权
    Persymmetric parametric adaptive matched filters for detecting targets using space-time adaptive processing of radar signals 有权
    用于使用雷达信号的空时自适应处理来检测目标的不对称参数自适应匹配滤波器

    公开(公告)号:US08284098B2

    公开(公告)日:2012-10-09

    申请号:US12954254

    申请日:2010-11-24

    IPC分类号: G01S13/00

    CPC分类号: G01S13/5244 G01S13/5242

    摘要: A method provides space-time adaptive processing (STAP) for target detection using adaptive matched filters (AMF). A generalized likelihood ratio test (GLRT) is determined where spatial and temporal correlation matrices Q and A are assumed. Then, the correlation matrices A and Q are replaced with maximum likelihood (ML) estimates obtained only from training signals subject to a persymmetric constraint.

    摘要翻译: 一种方法使用自适应匹配滤波器(AMF)提供用于目标检测的时空自适应处理(STAP)。 在假定空间和时间相关矩阵Q和A的情况下确定广义似然比检验(GLRT)。 然后,相关矩阵A和Q被替换为仅由经受不对称约束的训练信号获得的最大似然(ML)估计。

    Method for Detecting Targets Using Space-Time Adaptive Processing
    2.
    发明申请
    Method for Detecting Targets Using Space-Time Adaptive Processing 有权
    使用时空自适应处理检测目标的方法

    公开(公告)号:US20120249361A1

    公开(公告)日:2012-10-04

    申请号:US13291323

    申请日:2011-11-08

    IPC分类号: G01S13/04

    摘要: A method for detecting a target in a non-homogeneous environment using a space-time adaptive processing of a radar signal includes normalizing training data of the non-homogeneous environment to produce normalized training data; determining a normalized sample covariance matrix representing the normalized training data; tracking a subspace represented by the normalized sample covariance matrix to produce a clutter subspace matrix; determining a test statistic representing a likelihood of a presence of the target in the radar signal based on the clutter subspace matrix and a steering vector; and comparing the test statistic with a threshold to detect the target.

    摘要翻译: 使用雷达信号的时空自适应处理来检测非均匀环境中的目标的方法包括对非均匀环境的训练数据进行归一化以产生归一化的训练数据; 确定表示归一化训练数据的归一化样本协方差矩阵; 跟踪由归一化样本协方差矩阵表示的子空间以产生杂波子空间矩阵; 基于所述杂波子空间矩阵和导向矢量,确定表示所述雷达信号中所述目标的存在的可能性的测试统计量; 并将检验统计与阈值进行比较以检测目标。

    Method for detecting targets using space-time adaptive processing
    3.
    发明授权
    Method for detecting targets using space-time adaptive processing 有权
    使用空时自适应处理检测目标的方法

    公开(公告)号:US08907841B2

    公开(公告)日:2014-12-09

    申请号:US13291323

    申请日:2011-11-08

    摘要: A method for detecting a target in a non-homogeneous environment using a space-time adaptive processing of a radar signal includes normalizing training data of the non-homogeneous environment to produce normalized training data; determining a normalized sample covariance matrix representing the normalized training data; tracking a subspace represented by the normalized sample covariance matrix to produce a clutter subspace matrix; determining a test statistic representing a likelihood of a presence of the target in the radar signal based on the clutter subspace matrix and a steering vector; and comparing the test statistic with a threshold to detect the target.

    摘要翻译: 使用雷达信号的时空自适应处理来检测非均匀环境中的目标的方法包括对非均匀环境的训练数据进行归一化以产生归一化的训练数据; 确定表示归一化训练数据的归一化样本协方差矩阵; 跟踪由归一化样本协方差矩阵表示的子空间以产生杂波子空间矩阵; 基于所述杂波子空间矩阵和导向矢量,确定表示所述雷达信号中所述目标的存在的可能性的测试统计量; 并将检验统计与阈值进行比较以检测目标。

    Method for detecting targets using space-time adaptive processing and shared knowledge of the environment
    4.
    发明授权
    Method for detecting targets using space-time adaptive processing and shared knowledge of the environment 有权
    使用时空自适应处理和共享环境知识来检测目标的方法

    公开(公告)号:US08138963B1

    公开(公告)日:2012-03-20

    申请号:US12879288

    申请日:2010-09-10

    IPC分类号: G01S13/00 G01S13/08

    CPC分类号: G01S7/292 G01S13/04

    摘要: A method detects a target in a radar signal using space-time adaptive processing. A test statistic is T = max α ⁢ max λ ⁢ ∫ R ⁢ f 1 ⁡ ( x 0 , x 1 , … ⁢ , x K ❘ α , λ , R ) ⁢ p ⁡ ( R ) ⁢ ⁢ ⅆ R max λ ⁢ ∫ R ⁢ f 0 ⁡ ( x 0 , x 1 , … ⁢ , x K ❘ λ , R ) ⁢ p ⁡ ( R ) ⁢ ⁢ ⅆ R , where x0 is a test signal, xk are K training signals, α is an unknown amplitude of a target signal within the test signal, λ is a scaling factor, R is a covariance matrix of the training signals, and a function max returns a maximum values. The test statistic is compared to a threshold to determine whether the target is present, or not.

    摘要翻译: 一种方法使用空时自适应处理来检测雷达信号中的目标。 一个检验统计量是T = maxα⁢最大λ∫∫R f 1⁡(x 0,x 1,...,x K |α,λ,R)p⁡(R) ∫R f 0⁡(x 0,x 1,...,x K |λ,R)p⁡(R)⁢ⅆR,其中x0是测试信号,xk是K个训练信号,α是 在测试信号内的目标信号的未知振幅,λ是比例因子,R是训练信号的协方差矩阵,函数max返回最大值。 将测试统计量与阈值进行比较,以确定目标是否存在。

    Persymmetric Parametric Adaptive Matched Filters for Detecting Targets Using Space-Time Adaptive Processing of Radar Signals
    5.
    发明申请
    Persymmetric Parametric Adaptive Matched Filters for Detecting Targets Using Space-Time Adaptive Processing of Radar Signals 有权
    用于使用雷达信号的时空自适应处理来检测目标的非对称参数自适应匹配滤波器

    公开(公告)号:US20120127027A1

    公开(公告)日:2012-05-24

    申请号:US12954254

    申请日:2010-11-24

    IPC分类号: G01S13/00

    CPC分类号: G01S13/5244 G01S13/5242

    摘要: A method provides space-time adaptive processing (STAP) for target detection using adaptive matched filters (AMF). A generalized likelihood ratio test (GLRT) is determined where spatial and temporal correlation matrices Q and A are assumed. Then, the correlation matrices A and Q are replaced with maximum likelihood (ML) estimates obtained only from training signals subject to a persymmetric constraint.

    摘要翻译: 一种方法使用自适应匹配滤波器(AMF)提供用于目标检测的时空自适应处理(STAP)。 在假定空间和时间相关矩阵Q和A的情况下确定广义似然比检验(GLRT)。 然后,相关矩阵A和Q被替换为仅由经受不对称约束的训练信号获得的最大似然(ML)估计。

    METHOD FOR DETECTING TARGETS USING SPACE-TIME ADAPTIVE PROCESSING AND SHARED KNOWLEDGE OF THE ENVIRONMENT
    6.
    发明申请
    METHOD FOR DETECTING TARGETS USING SPACE-TIME ADAPTIVE PROCESSING AND SHARED KNOWLEDGE OF THE ENVIRONMENT 有权
    使用空间自适应处理和共享环境知识来检测目标的方法

    公开(公告)号:US20120062409A1

    公开(公告)日:2012-03-15

    申请号:US12879288

    申请日:2010-09-10

    IPC分类号: G01S13/04 G01S13/00

    CPC分类号: G01S7/292 G01S13/04

    摘要: A method detects a target in a radar signal using space-time adaptive processing. A test statistic is T = max α  max λ  ∫ R  f 1  ( x 0 , x 1 , …  , x K  α , λ , R )  p  ( R )   R max λ  ∫ R  f 0  ( x 0 , x 1 , …  , x K  λ , R )  p  ( R )   R , where x0 is a test signal, xk are K training signals, α is an unknown amplitude of a target signal within the test signal, λ is a scaling factor, R is a covariance matrix of the training signals, and a function max returns a maximum values. The test statistic is compared to a threshold to determine whether the target is present, or not.

    摘要翻译: 一种方法使用空时自适应处理来检测雷达信号中的目标。 一个测试统计量是T = max(α,max,λ)∫R f f 1(x 0,x 1,...,x Kα,λ,R) R 0 f(x 0,x 1,...,x Kλ,R)p R(R)其中x0是测试信号,xk是K个训练信号,α是未知振幅 的测试信号内的目标信号,λ是缩放因子,R是训练信号的协方差矩阵,函数max返回最大值。 将测试统计量与阈值进行比较,以确定目标是否存在。

    PHOTOACOUSTIC CATHETER AND IMAGING SYSTEM USING SAME

    公开(公告)号:US20190216330A1

    公开(公告)日:2019-07-18

    申请号:US15998889

    申请日:2017-02-13

    摘要: A photoacoustic catheter includes an elongated catheter body and a housing positioned near a distal end of the elongated catheter body. A length of multimode fiber extends through the elongated catheter body and has a distal end that is beveled at about 45° relative to a longitudinal axis of the multimode fiber and is positioned in the housing. An ultrasonic transducer, electrically connected to an electrical wire extending along the elongated catheter body, is positioned within the housing. A mirror element is also positioned within the housing and includes a mirror surface beveled at about 45° relative to the longitudinal axis of the multimode fiber. The catheter is operable to deliver an optical wave through the multimode fiber and to deliver an ultrasonic wave collinearly from the housing and out of an aperture of the housing to obtain optical data and ultrasonic data within a mammalian luminal organ.

    Method, device, terminal and system for switching video resolution
    8.
    发明授权
    Method, device, terminal and system for switching video resolution 有权
    用于切换视频分辨率的方法,设备,终端和系统

    公开(公告)号:US08730298B2

    公开(公告)日:2014-05-20

    申请号:US13547752

    申请日:2012-07-12

    IPC分类号: H04N7/14

    摘要: A method for switching video resolution includes: confirming that a video sender and a video receiver have established a video communication connection, and obtaining an initial resolution of the video sender; confirming that bandwidth of the video communication connection and hardware of the video sender meet preset conditions, and switching the initial resolution of the video sender to a target resolution, in which the target resolution is higher than the initial resolution. After establishing video communication connections between terminals, when there are available bandwidth and hardware of the terminal using video communication, the resolution of terminal may be switched to provide a more clear video communication for terminal user, and guarantee smooth switching of resolution.

    摘要翻译: 用于切换视频分辨率的方法包括:确认视频发送者和视频接收者建立了视频通信连接,并获得视频发送者的初始分辨率; 确认视频发送器的视频通信连接和硬件的带宽满足预设条件,并将视频发送器的初始分辨率切换到目标分辨率,其中目标分辨率高于初始分辨率。 在终端之间建立视频通信连接之后,当使用视频通信的终端可用带宽和硬件时,可以切换终端的分辨率,为终端用户提供更清晰的视频通信,并保证平滑的分辨率切换。

    Par-2-activating peptide derivative and pharmaceutical composition using the same
    9.
    发明授权
    Par-2-activating peptide derivative and pharmaceutical composition using the same 失效
    对二激活肽衍生物和使用其的药物组合物

    公开(公告)号:US07541339B2

    公开(公告)日:2009-06-02

    申请号:US10517803

    申请日:2003-06-10

    IPC分类号: A61K38/08 C07K7/06

    CPC分类号: C07K14/705 A61K38/00 C07K7/06

    摘要: The present invention relates to a peptide derivative represented by the general formula (I) or a salt thereof: Z-(CH2)n—CO—NH-Leu-Ile-Gly-AA1-AA2-CO—R (I) wherein Z represents an aryl group which may or may not have a substituent or a heteroaryl group which may or may not have a substituent; n represents 0, 1 or 2: AA1-AA2 represents Lys-Val or Arg-Leu; and R represents —OH or —NH2, and relates to a pharmaceutical composition comprising a peptide derivative represented by the general formula (I) or a salt thereof, and a pharmaceutically acceptable carrier thereof. The peptide derivative is useful as a prophylactic and therapeutic agent of dysfunction of masticatory, dysphagia, dysgeusia, ozostomia, intra-oral cavity dysphoria, intra-oral cavity infections, intra-oral cavity inflammations, dry eye, ectocornea detachment, keratitis, corneal ulcer, conjunctivitis, stomach ulcer, duodenal ulcer, gastritis, diarrhea, enteritis or Sjogren's syndrome.

    摘要翻译: 本发明涉及由通式(I)表示的肽衍生物或其盐:Z-(CH2)n-CO-NH-Leu-Ile-Gly-AA1-AA2-CO-R(Ⅰ)其中Z 表示可以具有也可以不具有取代基的芳基或可以具有取代基的杂芳基; n表示0,1或2:AA1-AA2表示Lys-Val或Arg-Leu; 和R表示-OH或-NH 2,并且涉及包含由通式(I)表示的肽衍生物或其盐及其药学上可接受的载体的药物组合物。 肽衍生物可用作咀嚼,吞咽困难,发重症,口臭,口腔内烦躁,口腔内感染,口腔内炎症,干眼症,异位角脱落,角膜炎,角膜溃疡功能障碍的预防和治疗剂 ,结膜炎,胃溃疡,十二指肠溃疡,胃炎,腹泻,肠炎或干燥综合征。

    Method, Device, Terminal And System For Switching Video Resolution
    10.
    发明申请
    Method, Device, Terminal And System For Switching Video Resolution 有权
    方法,设备,终端和系统用于切换视频分辨率

    公开(公告)号:US20120281062A1

    公开(公告)日:2012-11-08

    申请号:US13547752

    申请日:2012-07-12

    IPC分类号: H04N7/14

    摘要: A method for switching video resolution includes: confirming that a video sender and a video receiver have established a video communication connection, and obtaining an initial resolution of the video sender; confirming that bandwidth of the video communication connection and hardware of the video sender meet preset conditions, and switching the initial resolution of the video sender to a target resolution, in which the target resolution is higher than the initial resolution. After establishing video communication connections between terminals, when there are available bandwidth and hardware of the terminal using video communication, the resolution of terminal may be switched to provide a more clear video communication for terminal user, and guarantee smooth switching of resolution.

    摘要翻译: 用于切换视频分辨率的方法包括:确认视频发送者和视频接收者建立了视频通信连接,并获得视频发送者的初始分辨率; 确认视频发送器的视频通信连接和硬件的带宽满足预设条件,并将视频发送器的初始分辨率切换到目标分辨率,其中目标分辨率高于初始分辨率。 在终端之间建立视频通信连接之后,当使用视频通信的终端可用带宽和硬件时,可以切换终端的分辨率,为终端用户提供更清晰的视频通信,并保证平滑的分辨率切换。