专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US06867726B1 Combining sidelobe canceller and mainlobe canceller for adaptive monopulse radar processing 失效
标题翻译：组合旁瓣消除器和主瓣消除器进行自适应单脉冲雷达处理
公开(公告)号：US06867726B1
公开(公告)日：2005-03-15
申请号：US07807548
申请日：1991-12-16
申请人： Kai-Bor Yu , David Jay Murrow
发明人： Kai-Bor Yu , David Jay Murrow
IPC分类号： G01S7/36 , G01S13/36
CPC分类号： G01S13/44 , G01S7/2813 , G01S7/36 , H01Q3/2611 , H01Q3/30 , H01Q25/02
摘要： An improvement in monopulse radar achieves nulling of a single mainlobe jammer and multiple sidelobe jammers while maintaining the angle measurement accuracy of the monopulse ratio by cascading a multiple sidelobe canceller and a mainlobe canceller, and imposing a mainlobe maintenance technique during the sidelobe jammer cancellation process so that the results of the sidelobe jammer cancellation process do not distort the subsequent mainlobe cancellation process. In this manner, the sidelobe jammers and the mainlobe jammer are cancelled sequentially in separate processes.
摘要翻译：单脉冲雷达的改进通过级联多个旁瓣消除器和主瓣消除器来维持单脉冲比的角度测量精度，同时在旁瓣干扰消除过程中施加主瓣维护技术，实现单个主瓣干扰器和多个旁瓣干扰器的归零，从而旁瓣干扰消除过程的结果不会扭曲随后的主瓣消除过程。以这种方式，旁瓣干扰器和主瓣干扰器在单独的过程中被顺序地取消。

2. 发明授权

US06404379B1 Matrix monopulse ratio radar processor for two target azimuth and elevation angle determination 失效
标题翻译：矩阵单脉冲比雷达处理器用于两个目标方位角和仰角确定
公开(公告)号：US06404379B1
公开(公告)日：2002-06-11
申请号：US09607004
申请日：2000-06-29
申请人： Kai-Bor Yu , Yibin Zheng
发明人： Kai-Bor Yu , Yibin Zheng
IPC分类号： G01S1344
CPC分类号： G01S13/44 , G01S13/4418
摘要： A method and system for identifying the locations of plural targets lying within a main beam of a monopulse antenna including four ports for generating sum, elevation difference, azimuth difference and double difference signals. The method comprises the steps of forming a monopulse ratio matrix from the sum, elevation difference, azimuth difference and double difference signals; and determining eigenvalues of the monopulse ratio matrix. These eigenvalues are then used to determine the angular locations of the plural targets. Preferably, the eigenvalues are determined by performing an eigenvalue decomposition of the monopulse ratio matrix to generate eigenvalues, and the angles of the targets may be determined from the eigenvalues by the use of a look-up table.
摘要翻译：一种用于识别位于单脉冲天线的主波束内的多个目标的位置的方法和系统，包括用于产生和，高程差，方位角差和双差信号的四个端口。该方法包括从和，高程差，方位差和双差信号形成单脉冲比矩阵的步骤; 并确定单脉冲比矩阵的特征值。然后将这些特征值用于确定多个目标的角位置。优选地，通过执行单脉冲比矩阵的特征值分解来确定特征值以产生特征值，并且可以通过使用查找表从特征值确定目标的角度。

3. 发明授权

US5600326A Adaptive digital beamforming architecture and algorithm for nulling mainlobe and multiple sidelobe radar jammers while preserving monopulse ratio angle estimation accuracy 失效
标题翻译：自适应数字波束成形架构和算法，用于消除主瓣和多旁瓣雷达干扰，同时保持单脉冲比角估计精度
公开(公告)号：US5600326A
公开(公告)日：1997-02-04
申请号：US807546
申请日：1991-12-16
申请人： Kai-Bor Yu , David J. Murrow
发明人： Kai-Bor Yu , David J. Murrow
IPC分类号： G01S7/28 , G01S7/36 , G01S13/44 , H01Q3/26 , H01Q25/02
CPC分类号： G01S13/44 , G01S7/2813 , G01S7/36 , H01Q25/02 , H01Q3/2611
摘要： Monopulse radar operation is improved by nulling a single mainlobe jammer and multiple sidelobe jammers while maintaining the angle measurement accuracy of the monopulse ratio. A sidelobe jammer cancelling adaptive array is cascaded with a mainlobe jammer canceller, imposing a mainlobe maintenance technique or constrained adaptation during the sidelobe jammer cancellation process so that results of the sidelobe jammer cancellation process do not distort the subsequent mainlobe jammer cancellation process. The sidelobe jammers and the mainlobe jammer are thus cancelled sequentially in separate processes.
摘要翻译：单脉冲雷达操作通过在保持单脉冲比的角度测量精度的同时，使单个主瓣干扰器和多个旁瓣干扰器归零而得到改进。旁瓣干扰消除自适应阵列与主瓣干扰消除器级联，在旁瓣干扰消除过程中施加主瓣维护技术或约束适应，使得旁瓣干扰消除过程的结果不会使随后的主瓣干扰消除过程失真。因此旁瓣干扰器和主瓣干扰器在单独的处理中被顺序地取消。

4. 发明授权

US08736484B2 Enhanced-resolution phased array radar 有权
标题翻译：增强分辨率相控阵雷达
公开(公告)号：US08736484B2
公开(公告)日：2014-05-27
申请号：US12854473
申请日：2010-08-11
申请人： Kai-Bor Yu , Manuel F. Fernandez , Svetlana M. Bachmann
发明人： Kai-Bor Yu , Manuel F. Fernandez , Svetlana M. Bachmann
IPC分类号： G01S13/00
CPC分类号： G01S3/74 , G01S2013/0254 , H01Q21/061
摘要： A system and method for increasing the effective angular resolution of a multi-function phased array radar system is provided. The system is operative to simultaneously transmit a plurality of overlapping sub-beams covering a representative central beam. A de-convolution process is applied to received return signals. The process includes determining the reflectivity within sub-beamwidth resolution cells defined by the overlapping sub-beams. Generated sub-beamwidth data provides the radar system with an effective angular resolution beyond that of any single transmitted beam.
摘要翻译：提供了一种用于增加多功能相控阵雷达系统的有效角分辨率的系统和方法。该系统可操作以同时发射覆盖代表性中心波束的多个重叠子波束。解卷积过程适用于接收到的返回信号。该过程包括确定由重叠子光束定义的子波束宽度分辨率小区内的反射率。生成的子波束宽度数据为雷达系统提供了超过任何单个发射波束的有效角分辨率。

5. 发明授权

US07671789B1 Method and system for target detection and angle estimation based on a radar signal 失效
标题翻译：基于雷达信号的目标检测和角度估计方法和系统
公开(公告)号：US07671789B1
公开(公告)日：2010-03-02
申请号：US12245381
申请日：2008-10-03
申请人： Kai-Bor Yu
发明人： Kai-Bor Yu
IPC分类号： G01S13/44
CPC分类号： G01S13/4463
摘要： A method for target detection and angle estimation in a radar system includes receiving a signal from a radar array; based on the received signal, performing monopulse beamforming to obtain one or more monopulse beams; based on the monopulse beams, determining monopulse ratios; using maximum likelihood estimation based on the determined monopulse ratios to determine a monopulse ratio estimate corresponding to a maximum of a likelihood function; accessing a table correlating monopulse ratio estimates and target angle values and determining from the table an estimated target angle; accessing a complex target amplitude corresponding to the estimated target angle, comparing the complex target amplitude to a threshold; and if, based on the step of comparing, the target amplitude exceeds the threshold, providing an output signal indicative of target detection and the estimated target angle.
摘要翻译：雷达系统中的目标检测和角度估计方法包括从雷达阵列接收信号; 基于所接收的信号，执行单脉冲波束形成以获得一个或多个单脉冲波束; 基于单脉冲光束，确定单脉冲比; 使用基于确定的单脉冲比的最大似然估计来确定对应于似然函数的最大值的单脉冲比估计; 访问使单脉冲比估计和目标角度值相关的表，并从表中确定估计的目标角; 访问对应于估计的目标角度的复目标幅度，将复目标幅度与阈值进行比较; 并且如果基于比较步骤，目标幅度超过阈值，则提供表示目标检测的输出信号和估计的目标角度。

6. 发明授权

US06580392B2 Digital beamforming for passive detection of target using reflected jamming echoes 有权
公开(公告)号：US06580392B2
公开(公告)日：2003-06-17
申请号：US09949170
申请日：2001-09-07
申请人： Kai Bor Yu
发明人： Kai Bor Yu
IPC分类号： G01S302
CPC分类号： G01S13/003 , G01S3/74 , G01S7/2813 , G01S7/36 , G01S13/44 , H04K3/224 , H04K3/825 , H04K3/827 , H04K2203/12 , H04K2203/14
摘要： A radar system and method for detecting and tracking a target of interest in the presence of interference, wherein the interference emits interfering signals, includes a receiver for receiving the interfering signals directly from the interference. The receiver also receives reflected signals, wherein the reflected signals is the interfering signals reflected by the target of interest. The interfering signals and the reflected signals are compared to detect the target of interest. In one embodiment, the reflected signals and the interfering are cross-correlated. The results of the cross-correlation are used to obtain range, position, and velocity information about the target of interest from a range/Doppler map.

7. 发明授权

US06531976B1 Adaptive digital beamforming radar technique for creating high resolution range profile for target in motion in the presence of jamming 失效
标题翻译：自适应数字波束成形雷达技术，用于在存在干扰的情况下为目标运动创建高分辨率范围轮廓
公开(公告)号：US06531976B1
公开(公告)日：2003-03-11
申请号：US09948959
申请日：2001-09-07
申请人： Kai Bor Yu
发明人： Kai Bor Yu
IPC分类号： G01S736
CPC分类号： G01S13/426 , G01S7/2813 , G01S7/36 , G01S7/411 , G01S13/003 , G01S13/282 , G01S13/32
摘要： A wideband adaptive digital beamforming technique for maintaining a high range resolution profile of a target in motion in the presence of jamming utilizes a sequence of adaptively calculated narrowband jamming cancellation weights. The adaptive weights are calculated such that the desired frequency dependent gain is maintained toward the target center. These adaptive weights tend to preserve the range profile quality and low range sidelobes. This technique also tends to eliminate signal cancellation problems as well as adaptive weight modulation effects.
摘要翻译：用于在存在干扰的情况下维持目标运动的高范围分辨率轮廓的宽带自适应数字波束成形技术利用自适应计算的窄带干扰消除权重序列。计算自适应权重，使得期望的频率相关增益保持朝向目标中心。这些自适应权重倾向于保持范围轮廓质量和低范围旁瓣。这种技术也倾向于消除信号消除问题以及自适应权重调制效应。

8. 发明授权

US06356231B1 Monopulse radar processor for resolving two sources 失效
标题翻译：单脉冲雷达处理器，用于解决两个来源
公开(公告)号：US06356231B1
公开(公告)日：2002-03-12
申请号：US09607146
申请日：2000-06-29
申请人： Yibin Zheng , Kai-Bor Yu
发明人： Yibin Zheng , Kai-Bor Yu
IPC分类号： G01S1344
CPC分类号： G01S13/44 , G01S3/32 , G01S13/4427
摘要： A method and system for identifying the locations of plural targets lying within the main beam of a monopulse antenna including four ports for generating sum, elevation difference, azimuth difference, and double difference signals. The method comprises the steps of processing the sum, elevation difference, azimuth difference, and double difference signals in accordance with a series of linear equations to obtain a set of intermediate values; and processing the set of intermediate values in accordance with a set of algebraic equations to obtain signals representing an angular direction of each of the plural targets. Preferably, the method further includes the step of processing the sum, elevation difference, azimuth difference and double difference signals and the signals representing the angular directions of the targets according to a further set of algebraic equations to obtain signals representing the amplitude of the beam reflected from each of the targets. Also, in a preferred embodiment, the signals representing the angular direction of the targets include signals representing, for each of the targets, an angular direction of the target in an x-plane, and an angular direction of the target in a y-plane.
摘要翻译：用于识别位于单脉冲天线主波束内的多个目标的位置的方法和系统，包括用于产生和，高程差，方位角差和双差信号的四个端口。该方法包括根据一系列线性方程处理和，高程差，方位差和双差信号以获得一组中间值的步骤; 以及根据一组代数方程式处理所述一组中间值以获得表示所述多个目标中的每一个的角度方向的信号。优选地，该方法还包括根据另一组代数方程来处理和，高程差，方位差和双差信号以及表示目标的角方向的信号的步骤，以获得表示反射的波束的幅度的信号从每个目标。此外，在优选实施例中，表示目标的角度方向的信号包括针对每个目标的x平面中的目标的角度方向和在y平面中的目标的角度方向的信号。

9. 发明申请

US20120038504A1 ENHANCED-RESOLUTION PHASED ARRAY RADAR 有权
标题翻译：增强分辨率定时阵列雷达
公开(公告)号：US20120038504A1
公开(公告)日：2012-02-16
申请号：US12854473
申请日：2010-08-11
申请人： Kai-Bor Yu , Manuel F. Fernandez , Svetlana M. Bachmann
发明人： Kai-Bor Yu , Manuel F. Fernandez , Svetlana M. Bachmann
IPC分类号： G01S13/00
CPC分类号： G01S3/74 , G01S2013/0254 , H01Q21/061
摘要： A system and method for increasing the effective angular resolution of a multi-function phased array radar system is provided. The system is operative to simultaneously transmit a plurality of overlapping sub-beams covering a representative central beam. A de-convolution process is applied to received return signals. The process includes determining the reflectivity within sub-beamwidth resolution cells defined by the overlapping sub-beams. Generated sub-beamwidth data provides the radar system with an effective angular resolution beyond that of any single transmitted beam.
摘要翻译：提供了一种用于增加多功能相控阵雷达系统的有效角分辨率的系统和方法。该系统可操作以同时发射覆盖代表性中心波束的多个重叠子波束。解卷积过程适用于接收到的返回信号。该过程包括确定由重叠子光束定义的子波束宽度分辨率小区内的反射率。生成的子波束宽度数据为雷达系统提供了超过任何单个发射波束的有效角分辨率。

10. 发明授权

US07576682B1 Method and system for radar target detection and angle estimation in the presence of jamming 失效
标题翻译：有干扰的雷达目标检测和角度估计的方法和系统
公开(公告)号：US07576682B1
公开(公告)日：2009-08-18
申请号：US11375460
申请日：2006-03-14
申请人： Kai Bor Yu
发明人： Kai Bor Yu
IPC分类号： G01S13/06
CPC分类号： G01S7/2813 , G01S3/74 , G01S7/36
摘要： A method for radar target detection and angle estimation in the presence of jamming includes the steps of receiving a signal from a radar array having elements arranged in rows and columns; performing deterministic row-based beamforming on the received signal to obtain row sum azimuth beams; performing deterministic column-based beamforming on the received signal to obtain column sum elevation beams; performing one-dimensional maximum likelihood estimation on the row sum azimuth beams to obtain an estimated target elevation angle and an adaptive array sum azimuth beam; performing one-dimensional maximum likelihood estimation on the column sum elevation beams to obtain an estimated target azimuth angle and an adaptive array sum elevation beam; and performing target detection based on the adaptive array sum azimuth beam and the adaptive array sum elevation beam.
摘要翻译：在存在干扰的情况下用于雷达目标检测和角度估计的方法包括从具有以行和列排列的元件的雷达阵列接收信号的步骤; 对接收到的信号执行确定性的基于行的波束成形以获得行和方位角光束; 对接收到的信号执行确定性的基于列的波束形成，以获得列和提升波束; 对行和方位角光束执行一维最大似然估计，以获得估计的目标仰角和自适应阵列和方位角光束; 对所述列和仰角波束执行一维最大似然估计，以获得估计的目标方位角和自适应阵列和仰角波束; 以及基于所述自适应阵列和方位角光束和所述自适应阵列和仰角光束执行目标检测。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式