像是一种常用的改善方位分辨率的方法。
Synthetic aperture imaging is usually used to improve azimuth resolution.
一般非综合孔径雷达的方位分辨率受天线波束宽度的限制。
Angular resolution of a real aperture radar is limited by the beam width of the radar antenna.
导出了距离分辨率、方位分辨率和辐射分辨率的定量关系式;
The expressions of range resolution, the azimuth resolution, and the radiometric resolution have been derived.
矢量水听器阵可用常规方法进行波束形成,但其方位分辨率有限。
The beamforming in a vector sensor array can be realized by using the conventional method, but its resolution is limited.
对多普勒中心频率影响大,对多普勒调频斜率及方位分辨率影响小。
Doppler centric frequency is influenced much greater than Doppler FM rate and azimuth resolution is.
进一步推导出了适用于前视双基地SAR的距离和方位分辨率公式。
It then further deduces the range and the azimuth resolution formula which can be applied to BFSAR.
拖曳线列阵的方位分辨率是一项重要性能指标,而它被拖曳线列阵的阵列孔径所限制。
The direction-of-arrival resolution of the towed linear array is an important performance index, which is restricted by the array aperture of the towed linear array.
在机载sar实时成像处理器中,方位预滤波比的选取对最终获得的方位分辨率有决定性的影响。
In an airborne SAR real time imager, the selection of azimuth pre filter ratio has a decisive effect on the final azimuth resolution.
在过去十几年里,为了增加拖曳线列阵系统的空间增益、提高方位分辨率,各种合成孔径技术应运而生。
Various synthetic aperture techniques have been investigated during the past decades to increase array spatial gain and improve bearing resolution for towed line array system.
对影响雷达方位分辨率的因素进行了分析,提出用于目标回波图像模拟的雷达波束数字化模型和相应目标散射模型。
This paper analyzes the factors affecting radar bearing resolution, provides digital beam model and target scattering model to simulate target echoes image.
在合成孔径雷达(SAR) 中,雷达与目标之间相对运动的精确知识是相干处理回波形成高方位分辨率图像的基础。
The problems about the detection of moving objects and observation by the synthetic aperture radars(SAR) are described in this paper.
合成孔径技术相对于常规声纳技术的突出优势在于,它只利用小孔径的物理声阵,就可以得到与径向距离和频率都无关的高方位分辨率。
The very strong property of the synthetic array sonar is the ability to acquire a high azimuth resolution from a physically small array.
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.
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.
而对于较高分辨率的普通数码相机的标定任务是测定内方位元素及物镜畸变系数。
And the demarcating task of high-resolution general digital camera is to measure the interior position elements and the optical lens distortion coefficient.
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.
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.
它通过发射线性调频(lfm)的脉冲压缩信号实现距离上的高分辨率,利用脉冲之间的多普勒信息获得方位上的高分辨率。
It obtains its high resolution in range by transmitting LFM signal and that in aspect by utilizing the Doppler information among the pulsed echoed signal.
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.
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.
应用推荐