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. 发明申请

US20140218231A1 ENHANCED RADAR RANGE RESOLUTION 有权
标题翻译：增强雷达范围
公开(公告)号：US20140218231A1
公开(公告)日：2014-08-07
申请号：US13688543
申请日：2012-11-29
申请人： Raytheon Company
发明人： Theagenis J. Abatzoglou , Johan E. Gonzalez , Joel K. McWilliams , Raymond Samaniego , Mark B. Yeary , Enrique A. Santiago
IPC分类号： G01S13/90 , G01S7/28
CPC分类号： G01S13/90 , G01S7/28
摘要： A synthetic aperture radar imaging method that combines each radar return pulse with a sinusoid to reduce the radar return pulses to a baseband frequency and deskew each radar return pulse. It includes determining a maximum likelihood estimate (MLE) of residual motion parameters for a dominant scatterer on the ground relative to the airborne radar and correcting for errors in inertial navigation system measurements based on the MLE residual motion parameters. It includes convolving each radar return pulse with its corresponding radar transmission pulse to generate a range compressed image for each radar return pulse and generating a sub-band range profile image for each radar return pulse and its corresponding radar transmission pulse based on the corresponding range compressed image that has been corrected for residual motion. Performing bandwidth extrapolation on each sub-band and subsequently combining the three bands to produce an enhanced resolution image without grating lobes.
摘要翻译：一种合成孔径雷达成像方法，将每个雷达返回脉冲与正弦波相结合，以将雷达返回脉冲降低到基带频率，并对每个雷达返回脉冲进行去偏移。它包括确定相对于机载雷达的地面上主要散射体的残余运动参数的最大似然估计（MLE），并且基于MLE残余运动参数校正惯性导航系统测量中的误差。它包括将每个雷达返回脉冲及其相应的雷达传输脉冲进行卷积，以产生每个雷达返回脉冲的范围压缩图像，并根据对应的压缩范围生成每个雷达返回脉冲及其对应的雷达传输脉冲的子带范围轮廓图像残留运动已被校正的图像。在每个子带上执行带宽外推，随后组合三个频带以产生不带光栅的增强分辨率图像。

2. 发明授权

US09103918B2 Enhanced radar range resolution 有权
标题翻译：增强雷达距离分辨率
公开(公告)号：US09103918B2
公开(公告)日：2015-08-11
申请号：US13688543
申请日：2012-11-29
申请人： RAYTHEON COMPANY
发明人： Theagenis J. Abatzoglou , Johan E. Gonzalez , Joel K. McWilliams , Raymond Samaniego , Mark B. Yeary , Enrique A. Santiago
IPC分类号： G01S13/90 , G01S7/28
CPC分类号： G01S13/90 , G01S7/28
摘要： A synthetic aperture radar imaging method that combines each radar return pulse with a sinusoid to reduce the radar return pulses to a baseband frequency and deskew each radar return pulse. It includes determining a maximum likelihood estimate (MLE) of residual motion parameters for a dominant scatterer on the ground relative to the airborne radar and correcting for errors in inertial navigation system measurements based on the MLE residual motion parameters. It includes convolving each radar return pulse with its corresponding radar transmission pulse to generate a range compressed image for each radar return pulse and generating a sub-band range profile image for each radar return pulse and its corresponding radar transmission pulse based on the corresponding range compressed image that has been corrected for residual motion. Performing bandwidth extrapolation on each sub-band and subsequently combining the three bands to produce an enhanced resolution image without grating lobes.
摘要翻译：一种合成孔径雷达成像方法，将每个雷达返回脉冲与正弦波相结合，以将雷达返回脉冲降低到基带频率，并对每个雷达返回脉冲进行去偏移。它包括确定相对于机载雷达的地面上主要散射体的残余运动参数的最大似然估计（MLE），并且基于MLE残余运动参数校正惯性导航系统测量中的误差。它包括将每个雷达返回脉冲及其相应的雷达传输脉冲进行卷积，以产生每个雷达返回脉冲的范围压缩图像，并根据对应的压缩范围生成每个雷达返回脉冲及其对应的雷达传输脉冲的子带范围轮廓图像残留运动已被校正的图像。在每个子带上执行带宽外推，随后组合三个频带以产生不带光栅的增强分辨率图像。

3. 发明授权

US09335409B2 Bistatic inverse synthetic aperture radar imaging 有权
标题翻译：双向反合成孔径雷达成像
公开(公告)号：US09335409B2
公开(公告)日：2016-05-10
申请号：US13847764
申请日：2013-03-20
申请人： RAYTHEON COMPANY
发明人： Theagenis J. Abatzoglou , Johan E. Gonzalez
IPC分类号： G01S13/89 , G01S13/90 , G01S7/295 , G01S13/58
CPC分类号： G01S13/90 , G01S7/2955 , G01S13/582 , G01S13/589 , G01S2013/9058 , G01S2013/9064
摘要： A bistatic synthetic aperture radar (SAR) imaging system and method include: combining each radar return pulse from airborne radar platforms with a sinusoid; deskewing each reduced radar return pulse; estimating motion parameters based on a maximum likelihood estimation (MLE); performing MLE motion correction to generate motion-corrected radar return pulses; acquiring position and velocity estimates of the airborne radar platforms and scattering locations; defining bistatic range and velocity vectors; defining new bistatic range and velocity vectors in a new set of orthogonal axes; projecting vector distance differences between the radar scattering locations along the new set of orthogonal axes to generate new range and velocity measurements along the new set of orthogonal axes; converting the new range and velocity measurements to map Doppler frequency into cross-range; and forming a bistatic SAR image in range and cross-range based on cross-range extent derived from the Doppler frequency mapping.
摘要翻译：双向合成孔径雷达（SAR）成像系统和方法包括：将来自机载雷达平台的每个雷达回波脉冲与正弦波相结合; 每个减少雷达回波脉冲的去歪斜; 基于最大似然估计（MLE）估计运动参数; 执行MLE运动校正以产生运动校正的雷达返回脉冲; 获取机载雷达平台和散射位置的位置和速度估计; 定义双向范围和速度矢量; 在一组新的正交轴中定义新的双向范围和速度矢量; 沿着新的正交轴组在雷达散射位置之间投影向量距离差，以沿着新的正交轴组生成新的范围和速度测量值; 转换新的范围和速度测量，将多普勒频率映射到交叉范围; 并基于从多普勒频谱映射导出的跨距范围，在范围和交叉范围内形成双基SAR图像。

4. 发明申请

US20140285371A1 BISTATIC INVERSE SYNTHETIC APERTURE RADAR IMAGING 有权
标题翻译：双相反相合成孔径雷达成像
公开(公告)号：US20140285371A1
公开(公告)日：2014-09-25
申请号：US13847764
申请日：2013-03-20
申请人： RAYTHEON COMPANY
发明人： Theagenis J. Abatzoglou , Johan E. Gonzalez
IPC分类号： G01S13/90
CPC分类号： G01S13/90 , G01S7/2955 , G01S13/582 , G01S13/589 , G01S2013/9058 , G01S2013/9064
摘要： Embodiments of synthetic aperture radar systems for mapping Doppler frequency to cross-range to form bistatic inverse synthetic radar images of airborne targets.
摘要翻译：用于将多普勒频率映射到交叉范围的合成孔径雷达系统的实施例，以形成机载目标的双向逆合成雷达图像。

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