编码

This paper focuses on the job of building a practical program of map geocoding based on analysis of satellite SAR image. Map geocoding is one of procedures in post-processing of satellite SAR image.

为了使地理编码的过程成为一个流程，一个可以产生数据产品的处理过程，本文在分析和研究星载SAR图象地理编码的基础上，把重点放在建立一个实用的地理编码程序的工作上。

First, the development survey of image coding technology is simply described. Especially, the current research status and limitations of MPEG-2 video coding algorithms and system implementation are analyzed; then, based on these, the main problems are discussed and investigated in detail, some application systems such as MPEG-2 player, MPEG-2 real-time coding system and MPEG-2 multiplexor and demultiplexor have been implemented. And the creative works are shown below.

本文首先简述了运动图象编码技术的发展概况，并着重论述当前MPEG-2视频编码算法与编、解码器系统实现的研究现状以及存在问题；然后针对其中的主要问题开展了详细讨论与研究，实现了MPEG-2软件回放器、MPEG-2实时编码系统和MPEG-2复用与解复用系统等多项实际应用系统，并取得了以下创造性成果。

Through discussing the basic principle of coding documents into numerical data, we developed a coding format and a series of coding rables.

本文根据我国自然灾害史料的特点，设计了一套由灾情发生时间、地点、灾情种类及严重程度、参考文献等要素组成的数字编码方案，详细给出了用于灾情描述的编码表，如大气圈异常、水圈响应、动植物响应、人类初级响应及政府响应等描述用语的编码表。

As the address of EEPROM, which was used for looking2up table, the information of octant and signals of magnetic encoder which were converted by A /D converterwere dealt by FPGA. And the frequencymultip lication formagnetic encoderwas comp leted. So the resolution and accuracy ofmagnetic encoderwere imp roved, 4096 multip le frequencies can be achieved in per cycle.

同时利用FPGA对卦限信息和磁编码器输出信号的A /D转换信息进行处理，作为EEPROM的地址信息进行硬件查表，实现对磁编码器信号的倍频处理，从而提高了磁编码器的分辨率和测量精度，可实现每个周期4 096份的倍频。

In this paper,a new coding scheme is proposed,which is named as prefix division coding scheme.

在对现有编码机制进行综述的前提下，提出一种新的XML文档编码机制——前缀整除编码机制。

The system chart of designing a weather radar with SZ phase code is listed, the principal and coding series of this kind of SZ phase code is illustrated.

首先给出了该方法应用到某气象雷达上所采用的系统框图；然后介绍了SZ相位编码的原理和编码序列以及基于这种编码给出了气象雷达解距离模糊算法的详细流程，并着重介绍了频谱重构的频域处理方法；最后给出了用该方法同时解出一次和二次气象回波的Matlab仿真，结果表明该方法对平均速度的估算较为准确。

In order to improve the efficiency, we present two new encoding/decoding schemes, whose performance is better than that of the classical algorithm when they are applied to quantize high-frequency WT coefficients.

为了提高熵编码的效率，本文在经典算法的基础上提出了两种新的编码方案，并应用于小波变换编码中，在性能上优于原算法。

Throughcalculation, we find that there are remarkable differences between coding and non-coding sequences, and vector from random sequences is closely related to that fromthe coding sequences.

通过计算，我们发现，编码区和非编码区所对应的4维向量有很大不同，并且随机序列与编码区对应的向量较为接近。

The typical Arithmetic Coding does not map a single source to a word, but maps the whole input symbol sequence to a section of 0,1 on the real number axis, the width of which is equal to the probably of the sequence. A representative binary fraction in the section is chosen as real output to get efficient compressed codes.

典型的算术编码不是将单个的信源符号映射成一个码字，而是将整个输入符号序列映射成为实数轴上0，1区间内的一个小区间，其长度等于该序列的概率；在该小区间内选择一个代表性的二进制小数，作为实际的编码输出，从而达到了高效编码的目的。

The algorithm deals with the points of the vertex chain code around a region,matches points in the same scan lines and uses scan lines to fill the region,and then the binary image will be reconstructed.

该算法对表示二值图像区域的顶点链编码点进行记录处理，配对被记录的顶点链编码点，然后运用水平扫描线来填充图像区域，从而将原图像根据顶点链编码完全恢复出来。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了