该文引入了基于提升法自适应离散小波变换,探讨了空间域提升结构中预测算子和更新算子的设计,根据预测误差最小原则使伯恩斯坦预测算子自适应匹配特定的数据序列,最后由数值仿真验证了该算法的性能,对于硬域值法小波系数去噪,自实应提升小波变换同一般的小波变换相比,去噪后的信噪比效率相近,提升方法的优点在于其设计上的灵活性和计算简单,易实现自适应变换。
This paper describes a new method of small moving target detection and analyzes the performance of this algorithm. The method is based on multi-level threshold decision-making and sliding trajectory c
Through the analysis of BOM and in comparison with other storage forms, a tree-structure storage model has been proposed. It use two tables to record parent components and child components respectivel
A new method is put forward combining computer vision with computer aided geometric design (CAGD) to resolve the problem of free-form surface reconstruction. The surface is first subdivided into N-sid
从做好平、战时弹药供应保障、军援军贸工作和提高自动化管理水平三个方面的需要,论述了在弹药包装上制作条码标志的必要性。介绍了二维条码的特点,从八个方面分析了弹药条码标志的要求和采用PDF417二维条码技术的可行性。
The results from interpretation of the aerophotos and in-situ seismogeological researches show that there are some obvious late-Quaternary activities along the Moxi-Mianning segment of the Xianshuihe-
Based on the fitting on paleoearthquake data of intra-plate regions in the northern part of China and giving a statistical model of time interdependence, the potential damage earthquakes in a definite
By using 126 earthquake focal mechanism solutions (M S≥4.7) during the period of 1963～1998, modern tectonic stress field in North China is inverted by means of the step by step convergence. The inver