试飞结果证明,实时成像算法在大斜视角下能稳定成像。
The results of flying show the algorithm can image stably in high squint.
弹载合成孔径雷达具有平台运动速度快、非匀直运动和大斜视角三大特点。
Missile-borne SAR has three important characteristics including the high flight speed, the movement with non-constant speed and the big squint angle.
结论儿童部分调节性内斜视的手术量宜按照平均斜视角或偏向于裸眼斜视角制定。
Conclusion the surgical extent of pediatric partial accommodative esotropia should he determined according to the average Angle of strabismus with and without correction.
利用瞬时多普勒频率与波束斜视角的对应关系构造出一种具有闭合解的距离弯曲因子。
A close-form range curvature factor is constructed through the correspondence of the instant Doppler frequency to the squint angles.
文章研究了机载合成孔径雷达(SAR)在大斜视角下的成像算法,并分析了算法的成像性能。
This paper studies image algorithms and analyses imaging quality of air-borne Synthetic Aperture Radar (SAR) in large squint mode.
指出了非线性CS算法在实际应用中其参考频率的选择是唯一的,并提出了一种在大斜视角下进行多视处理的方法。
It is proved that the choice of the reference frequency in NCSA is unique. A multiple-look SAR imaging method for the large squint Angle is presented.
一般,得到的航空影像并不是正摄影像,在影像中对大多数建筑物均存在倾斜视角,且绝大多数建筑物还存在垂直边缘。
In a general way, aerial image is not orthograph, most buildings exist slope Angle as well as vertical lines in aerial images.
大斜视角下SAR信号特点表现为大的距离走动和小的距离弯曲,这使得采用时域距离走动校正和二维可分离成像方法成为可能。
The high squint SAR signal characterizes a large range walk and a small range curvature, which enables us to compress it in range and azimuth separately.
基于最小熵准则的自聚焦rd算法在一般rd算法的基础上引入最小熵准则来补偿由于大斜视角引起的相位误差,改善图像聚焦效果。
RD algorithm based on minimum entropy criteria carries out the correction phase errors caused by high squint Angle via searching error coefficients for improving the imaging focus effect.
分析了星载聚束式合成孔径雷达(SAR)的信号特性,主要研究了多普勒中心频率、多普勒带宽以及脉冲重复频率(PRF)与斜视角的关系。
Signal properties of spaceborne spotlight SAR were discussed. The relationships of centroid Doppler, Doppler bandwidth and PRF (Pluse Repetition Frequency) with squint Angle were analyzed.
分析了星载聚束式合成孔径雷达(SAR)的信号特性,主要研究了多普勒中心频率、多普勒带宽以及脉冲重复频率(PRF)与斜视角的关系。
Signal properties of spaceborne spotlight SAR were discussed. The relationships of centroid Doppler, Doppler bandwidth and PRF (Pluse Repetition Frequency) with squint Angle were analyzed.
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