Research on Image Encryption and Decryption Based on Two-dimensional Continuous Model

An Image Encryption Algorithm Based on Mixed Chaotic Dynamic Systems

一种新的基于复合混沌模型的图像加密算法

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Research and Progress of Optical Image Encryption Using Random Phase Mask

随机相位编码光学图像加密研究进展

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Image encryption algorithm based on improved chaotic sequences of Liu system

基于改进的Liu混沌系统序列的图像加密算法

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Application of Digital Compressed Image Encryption Based on Chaotic Neural Network

混沌神经网络在数字压缩图像加密中的应用

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Research and Implementation of Image Encryption Algorithm Based on Transformation

一种基于变换的图象加密算法研究及实现

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Research of Computer Image Encryption Techniques Based on Chaotic Sequences Algorithm

基于混沌序列算法的计算机图像加密技术的研究

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Image Encryption Technology Based on a Class of Discrete Chaos System

基于一类离散混沌系统的图像加密技术

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WGS-84 geocentric geodetic coordinate system was adopted for GPS geodetic coordinate transformation based on Ozone algorithm.

基于Ozone算法的GPS大地坐标变换，采用WGS-84地心坐标系。

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GPS Handset Coordinate System Conversion Parameters Derivation

手持GPS坐标系统转换参数求解方法的探讨

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Transformation from GPS determined coordinate to local system

GPS测定坐标转换至地方坐标

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It constructs noise autocorrelation function with the use of noise autocorrelation in the high-frequency GPS coordinate time series, puts forward the Kalman filtering denoising model based on the fractal algorithm, and fulfills GPS subsidence deformation extract and the reference point coordinates settlement corrections. 3.

利用高频GPS坐标时间序列中噪声的自相关性构建了噪声自相关函数，提出基于分形算法的Kalman滤波消噪模型，实现GPS沉降变形的提取与基准点坐标的沉降改正。

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After the introduction of the system structure, the algorithm of computing mileage from the GPS coordinate was deduced. This algorithm interpolated the mileage of every video frame using the inputted mileages of the key video frames, and corrected the errors.

在论述了系统的体系结构后，推导了利用GPS坐标推算里程的算法，该算法通过录入关键帧对应的里程，内插出每帧的里程数，并对其进行修正。

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By using the simplified BURSA-WOLF spatial model formula for GPS coordinate transform in Quzhou district, the paper compared every model's influences on the transform accuracy, and educed some conclusions and advices that would benefit engineering application.

本文通过在衢州地区利用简化的BURSA-WOLF空间模型公式进行GPS坐标转换，比较各个模型对转换精度的影响，得出一些有利于工程应用的结论和建议。

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In view of morbid matrix of GPS coordinate transforming into local coordinate, the paper puts forward the separation regression method and introduces the principle, the transformation process and the transformation example of the separation regression method.

针对目前GPS坐标向地方坐标转换时易出现病态矩阵的问题，文章提出了分离回归法。并介绍了分离回归法的基本原理、转换过程及转换实例。

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The method optimally combines quick orientation based on tactical plat has solved. The application of new field is developed in GPS coordinate positioning.

该方法使快速的GPS定位技术与战术地图详细的数据得到了最佳结合，解决了战术地图快速定位问题，拓展GPS定位的应用范围。

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The paper illustrates that the three-dimensional coordinate transformation model should be used when the GPS coordinate transformation is made in large scope.

文中阐述了在大范围GPS坐标转换时，应采用三维坐标转换模型。

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Also the transformation algorithm between GPS coordinate and electronic map coordinate is given in local district, for example Xiamen.

这里还进一步以厦门地区为例，给出了局部区域内的GPS坐标和电子地图间的转换算法。

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The method of GPS coordinate positioning and display based on scan tactical plat is proposed in this paper.

主要研究在扫描的战术地图上进行GPS坐标定位、显示的方法。

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The GPS coordinate transformation and analyzing the coordinate precision based on simplified BURSA-WOLF formulas show different results.

利用简化的公式对某城市四等控制网的GPS观测成果进行坐标转换和精度分析，结果表明，两种公式具有不同的转换精度，适用不同的GPS测量及应用。

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Presented a predigested diversion arithmetic from GPS coordinate to real coordinate on map.

实现了GPS坐标向实际地图坐标的转换简化算法。

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