1. What's Geosciences 3. Reviews 3D Models 4. Objects of 3D Geosciences Modeling 5. Data Sources of 3DGM 6. Forelands of 3DGM 7. Principles of GTP Model 8. Applications of GTP-based Geomo3D
针对恶劣测量条件下宽频带低信噪比调频连续波雷达信号距离模糊问题,建立了固态料面调频连续波雷达信号模型,并提出了以先验信息为辅助,包含信号频域预处理、频带截取及频带能量加权的距离反演方法.实际数据处理结果显示:经过预处理的信号频谱平均信噪比由原来的-5.55 d B提高到8.32 d B;采用包络线截频带法和最小二乘截频带法进行距离反演后拟合料线与实际料线间的料形相似度由0.46分别提高到0.71和0.79
1. Information Processing Definition of Information processing All operations exerted to the information itself for its better utilization Information processing is necessary because most of the information in its original form may not be good for use. Thus information processing is the basis of later operations Two categories of information processing: 1)Shallow Level of Information Processing 2)Deeper level of Information Processing
3-1 Measures of Random Syntactic Information Shannon Theory of Information Key point: 1. Information is something that can be used to remove uncertainty. 2. The amount of information can then be measured by the amount of uncertainty it removed. 3. In the cases of communications, only waveform is concerned while meaning and value are ignored. 4. Uncertainty and thus information are statistic in nature and statistical mathematics is enough