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1. 发明授权

US5982319A UHF synthetic aperture radar 失效
标题翻译： UHF合成孔径雷达
公开(公告)号：US5982319A
公开(公告)日：1999-11-09
申请号：US41215
申请日：1998-03-12
申请人： Scott C. Borden , George A. Ioannidis
发明人： Scott C. Borden , George A. Ioannidis
IPC分类号： G01S7/02 , G01S13/90
CPC分类号： G01S13/90
摘要： A synthetic aperture radar (SAR) which operates at UHF frequencies and which includes a two element antenna. The SAR generates a null in the backlobe of the antenna pattern at the location of a target which is steered rather than trying to obtain directivity in the mainlobe. Both analog and digital implementations are provided. In the analog approach, required phase shifts are performed at a frequency higher than the RF output frequency and the receive and transmit nulls are steered separately to increase the width of the null so as to allow for wider SAR swaths. The digital implementation involves steering the null only on receive and multiplying fast time samples by a complex phase correction similar to that used in the analog approach to form the beam. The phase correction is also performed prior to range resolution which employs "stretch" processing, so as to achieve high range resolution.
摘要翻译：一种以UHF频率工作的合成孔径雷达（SAR），其包括一个双元件天线。 SAR在天线图案的旁瓣中产生一个零点，在目标的位置被转向，而不是试图获得主瓣中的方向性。提供模拟和数字实现。在模拟方法中，以高于RF输出频率的频率执行所需的相移，并且接收和发送零点被分开转向以增加零点的宽度，以便允许更宽的SAR条带。数字实现涉及仅在快速时间采样的接收和乘法上进行空值的复杂相位校正，类似于模拟方法中使用的复相校正来形成波束。在采用“拉伸”处理的范围分辨率之前也执行相位校正，以便实现高范围分辨率。

2. 发明授权

US5164731A Turbulence radar system 失效
标题翻译：涡轮雷达系统
公开(公告)号：US5164731A
公开(公告)日：1992-11-17
申请号：US714135
申请日：1991-06-13
申请人： Scott C. Borden , Bruce D. Mathews , Joseph Stevenson
发明人： Scott C. Borden , Bruce D. Mathews , Joseph Stevenson
IPC分类号： G01S13/95
CPC分类号： G01S13/953
摘要： The present invention is a radar system that detects turbulence by breaking a range cell return down into spectral segments using an FFT processor. The standard deviation of the spectrum is determined and the system compares that standard deviation to a reference threshold of a non-turbulent return if the signal is above noise. If the threshold is exceeded, the range cell is marked for turbulence display. Once the turbulence display is completed it is overlayed on the weather display. To improve matching of the feature size to the variance calculation the invention performs both range and azimuth post detection integration subsequent to the FFT but before variance calculation.
摘要翻译：本发明是一种雷达系统，其通过使用FFT处理器将范围单元分解成频谱段来检测湍流。确定频谱的标准偏差，并且如果信号高于噪声，系统将该标准偏差与非湍流返回的参考阈值进行比较。如果超过阈值，范围单元被标记为湍流显示。一旦湍流显示完成，它将覆盖在天气显示屏上。为了改进特征尺寸与方差计算的匹配，本发明在FFT之后但在方差计算之前执行范围和方位角后检测积分。

3. 发明授权

US4978960A Method and system for real aperture radar ground mapping 失效
标题翻译：实际孔径雷达地面测绘方法与系统
公开(公告)号：US4978960A
公开(公告)日：1990-12-18
申请号：US290205
申请日：1988-12-27
申请人： Gary L. Newcomb , Timothy E. Brandt , Scott C. Borden , Joseph Stevenson
发明人： Gary L. Newcomb , Timothy E. Brandt , Scott C. Borden , Joseph Stevenson
IPC分类号： G01S13/44 , G01S13/89
CPC分类号： G01S13/89 , G01S13/4454
摘要： A system for real beam radar ground mapping using a monopulse antennae to determine off-boresight angle of target returns. Off-boresight angle is converted to azimuth bins. After processing, return energy for each contiguous azimuth bin of an illuminated area is dumped during a respective "look" of the antenna.
摘要翻译：一种使用单脉冲天线的实际波束雷达地面映射系统来确定目标返回的远视角。离视角转换为方位盘。在处理之后，在天线的相应“外观”期间倾倒照明区域的每个相邻方位盘的返回能量。

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