此外，对于二维成像，距离向分辨率和方位向分辨率也是必须考虑的因素。
Moreover, for two-dimensional imaging, range resolution and cross-range resolution are also mentioned in the paper.
合成孔径成像是提高图像方位向分辨率的有效方法，但算法运算量大，在机载条件下往往实时性得不到保证。
The focused synthetic aperture imaging processing is the available method to improve the azimuth resolution, but the operational quantity is so large that it could not accomplish in real time.
这样，利用多普勒频移现象“合成”一个更大的孔径，达到“增加天线长度”的效果，提高雷达图像的方位向分辨率。
So, a larger aperture can be composed, and we obtain a good purpose of increasing the length of the antenna, and we obtain a better Radar image on the orientation.
方位向压缩后，将各子孔径数据按时间先后排序拼接、运算，合成出全孔径分辨率图像。
After azimuth compression, the sub-apertures are arrayed and synthesized to offer a full-aperture resolution image.
理想情况下，SAR回波多普勒信号是线性调频信号，采用合成孔径原理提高方位向成像分辨率。
In ideal circumstances, the back scattered echo signal of SAR is chirp signal. With synthetic aperture theory, high azimuth resolution imaging to distant targets can be attained.
该方法首先对各距离分辨单元在方位向进行非相参积累，然后利用类似单个脉冲下扩展目标的广义似然比检测器来实现高分辨率雷达的检测。
First, each range resolving unit was accumulated non-inherently in azimuth, and then the detection of HRR target was done with the GLRT detector similar to that of the mono-pulse spread targets.
该方法首先对各距离分辨单元在方位向进行非相参积累，然后利用类似单个脉冲下扩展目标的广义似然比检测器来实现高分辨率雷达的检测。
First, each range resolving unit was accumulated non-inherently in azimuth, and then the detection of HRR target was done with the GLRT detector similar to that of the mono-pulse spread targets.
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