查询词典 fast algorithm

In view of it, the algorithm based on the Fast Fourier Transform techniques with quadratic interpolation in the frequency domain is mainly presented. After that,the simulation is carried on and analyse the simulation curves deeply. It ndicates that this algorithm can not only enhance the frequency resolution, but only estimated frequency has high reliability and excellent stability. And it\'s feasible.

主要介绍一种基于FFT和在频域内二次插值的频偏估计算法，之后进行仿真、深入分析仿真曲线，结果表明该算法不仅可以提高频偏估计的精度，而且频偏估计值具有很高的可靠性和良好的稳定性，该算法是可行的。

And an exact maximum likelihood registration algorithm is presented based on three-dimensional plane. This method contains two sets of partially separable variables (the actual target positions and the sensor registration errors) and provides a two-step recursive optimization algorithm to ensure fast convergence. Described by expressions:(5.26)?(5.39). It resolves the problems on Multiple-platform.

同时本文还推导出了三维立体投影的极大似然配准算法，算法包括两组部分可分的变量：实际目标位置和传感器的配准误差，利用两步递归优化算法对收敛速度进行了优化处理，实现过程可参阅式5.26～5.39，此算法解决了不同平台内多传感器配准过程中所存在的问题。

Computer simulation results show that the algorithm is relatively simple genetic algorithm for for solving high precision, fast convergence and stable performance is good.

计算机仿真结果显示，该算法较简单遗传算法求解精度高，收敛速度快且稳定性能好。

The fast wavelet transforms algorithm based on FFT and the Atrous algorithm has high computational efficiency, is easy to be realized with hardware and to extract features, and the size of the wavelet coefficient matrix is the same to that of the original image.

基于FFT和多孔算法的小波快速变换算法，具有计算效率高、易于硬件实现，并且计算后的小波系数矩阵大小和原图像一样，易于提取特征。

This paper advances a Fast BP algorithm. It accords to the system error to adjust learning speed. By procasting cotton heliothis armigera, we made a compare to these two kinds BP algorithm's convergence speed.

本文在对BP网络现行算法研究的基础上，提出根据系统误差自适应调节学习率的快速BP算法，并以棉花棉铃虫预测为例，对两种算法的收敛速度进行了比较。

The experimental results show that the algorithm can expediently control the integral structures and local details of the fractal sets generated from complex dynamical systems when 12 perturbative and deformation parameters are interactively adjusted. The algorithm is simple, fast and easy to control.

实验结果表明，该算法通过扰动控制和变形控制共12个参数的引入，实现了对复动力系统分形集整体结构和局部细节的有效控制，且算法具有简单、快速和可控强的优点。

Based on this, this project firstly extensively studies, optimizes and ameliorates the key algorithm in coding -DCT and the movement estimation algorithm, so as to implement fast coding and the high compression ratio.

基于此，本课题首先对编码中的关键算法——DCT变换和运动估计算法进行重点研究、优化和改进，以实现快速的编码和高压缩比。

The wing-edge and wing-patch data structure and fast searching method which combines the index rectangle with compass based normal vector are designed to speed the triangulation algorithm. Application in visualization of oil geological data and griding of mechanical part, the algorithm is efficient, steady and broad-spectrum. It can provide Delaunay triangular mesh for scientific computing and engineering analysis.

算法中采用了翼边、翼面型数据结构和自行设计的索引矩形与基于法矢的指南针法相结合的快速查询法，在石油地质勘探数据场可视化和机械零件网格剖分中的应用表明本文三角化算法具有高效、稳定、适用范围广的特点，能够为科学计算和工程分析提供边界一致的Delaunay三角网格。

There are a lot of technological difficult points involved in NC machining graphic simulating, this thesis has mainly told about the line and arc interpolation algorithm, vertices of triangle mashes modeling, fast inquiry method for solid stock data, the algorithm of intersect the stock with the swept volume of a cutter, the cutter tool real-time removing display and so on.

图形仿真涉及到的技术难点比较多，论文主要对直线、圆弧的插补算法，工件的三角网格建模和显示技术，工件数据的存储和快速查询方法，刀具扫掠体和工件的求交算法，图形的快速局部消隐算法，刀具的动态显示等方面进行了详细的介绍。

Based on the Minimal Spanning Tree MST heuristic and the modified Prims algorithm, a fast constructive algorithm with the overall time complexity of O N2m is presented through the detailed analysis of the reliability and noise constraints.

通过对考虑可靠性及噪声的各项约束条件的分析，提出了一种时间复杂度为ON2m基于最小代价生成树MST和改进的Prim算法的快速构造算法。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。