专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

4. 发明专利

JPS58179368A Evaluating simulator of synthetic aperture radar restoring picture 失效
标题翻译：评估合成孔径雷达恢复图像的模拟器
公开(公告)号：JPS58179368A
公开(公告)日：1983-10-20
申请号：JP6107482
申请日：1982-04-14
申请人： Hitachi Ltd
发明人： SETO YOUICHI , HAYASHI TAKANARI , HONMA KOUICHI , FURUMURA FUMINOBU , YAMAGAKE NOBUTAKE , KUBO YUTAKA
IPC分类号： G01S13/90 , G01S7/295 , G01S7/40
CPC分类号： G01S7/4021
摘要： PURPOSE:To improve the picture quality of a restoring picture, and to quantitatively determining and evaluating the correcting accuracy of a geometrical distortion, by quantitatively determining the influence exerted on the restoring picture by a flying body parameter and a system parameter, by using test data or real data. CONSTITUTION:Test data is generated by delivering actual orbit and attitude data, etc. to a test data generating device 1 from a flying body parameter setting device 8 (data base), and simulating a simple surface pattern (for instance, one point). If necessary, a quantization factor is varied by use of a converter 3 of a quantization factor. The test data is restored by a data restoring device 4. A restored picture is compared with an original surface test pattern by a restoring picture evaluating device 6, by which a speckle noise and a picture element flow in the range direction and the azimuth direction are detected. A correcting parameter value corresponding to said noise and quantity of the picture element flow is set by a system parameter device 9.
摘要翻译：目的：为了提高恢复图像的图像质量，通过使用测试数据定量确定对飞行体参数和系统参数对恢复图像的影响，定量地确定和评估几何失真的校正精度或实际数据。构成：通过从飞行体参数设定装置8（数据库）向实验数据生成装置1传送实际的轨道和姿势数据等，并模拟简单的表面图案（例如，一点）而产生测试数据。如果需要，通过使用量化因子的转换器3来改变量化因子。测试数据由数据恢复装置4恢复。通过恢复图像评估装置6将恢复的图像与原始表面测试图案进行比较，通过该恢复图像评估装置6，在范围方向和方位方向上流过斑纹噪声和图像元素检测到。与图像元素流的所述噪声和量对应的校正参数值由系统参数设备9设置。

IPRDB

热门服务

关于我们

友情链接

联系方式