编码的

Blend various advantages of the coding project of the parameter audio frequencies in the meantime, carried on adjustment on the coder structure, have to a certain signal more the mold piece of coding result, if wave structure analytical transformation short time of the mold piece, double the composition examine and double the transformation short time mold piece etc. is an options to bring into coder, from user while coding according to small together source voice document of small together characteristics, decide whether use and how use, but these vivid constitutions can through a code flow in define several good to mark ratio in advance tell a decoding machine especially, constituting decoding machine is little with complications to without direct influence.

同时融合多种参数音频编码方案的优点，在编码器结构上进行了调整，将只对某类信号有较好编码效果的模块，如谐波结构分析模块、双变换短时成分检测与双变换短时模块等，作为选项纳入到编码器中，由使用者在编码时根据小同源声文件的小同特点，来决定是否使用和如何使用，而这些灵活的设置都可以通过码流中预先定义好的几个标示比特位来告知解码器，对解码器本身的构成与复杂度少没有直接的影响。

Correlative numerical simulation was implemented,and the results show that the combination of RS and TCM codes can enhance optical PPM communication performance assuringly.

模拟研究了在不同空间光信道条件下，传统RS码的符号正确传输率和误码率，并对网格编码调制的编码增益、RS码与网格编码调制级联时的编码增益进行了仿真研究，证实了本方案的有效性。

Well, it could be that you have a huge collection of ISBN numbers, and that there are so many of them that for weird reasons some have the wrong check digit perhaps the numbers were scanned from a printed list and the OCR got the numbers wrong, perhaps the numbers were manually captured...

因为你可能有数量巨大的 ISBN 的编码，而其中又有大量的编码不知道什么原因，校验码是错的（可能是编码是从一个打印出来的列表里头扫描并 OCR 出来的，编码就错了，也可能是编码被手工捕获的。。。

ABSTRACT This dissertation presents the author′s research contributions to joint source-channel coding theory and the joint coding theorem...

本文介绍了作者在信源—信道联合编码研究方面所作的主要工作，包括联合编码理论和联合编码算法两部分内容。

Firstly, the research studies the coding rule of the PDF417 barcode and designs related computer code algorithm, with making it programmed, and completes the coding part of the system software. Next, the coding and decoding principle of Reed-Solomon error-correcting code is briefly introduced. According to thecoding and decoding principle in galois field GF(929), to analyze and study its practical application with emphasis in this topic. Then, the PDF417 barcode decoding process is analyzed and studied detailed according to the barcode coding principle, with the corresponding realization method designed, improving the design in theory aspect by using material example, at the same time programming the design method to complete the decoding part of the system. Finally, validated the system program in the practical application of image information aspect, by using the nonrepeatability and the randomicity characteristic of Julia mark shape artwork.

本课题首先研究PDF417条码的编码规则并设计相关的计算机编码算法使其程序化，完成系统软件的编码部分；其次，简要介绍Reed—Solomon错误控制码的编码与译码原理，在伽罗瓦域GF(929)内根据其编译码的原理重点分析与研究其在本课题中的实际应用；然后根据条码的编码原则对PDF417条码的译码过程进行详细的分析与研究，并设计出相应的实现方法，利用具体实例对设计方法进行理论方面的实践同时将设计方法程序化完成系统软件的译码部分；最后利用Julia集分形图形的不可重复性和随机性的特点对系统软件在图像信息方面的实际应用进行了验证。

On the basis of introducing the channel and system model of wireless optical communication,average bit error rate of uncoded and RS coded system with channel side information were analyzed,and compared with Turbo coded system from the following two aspects:received optical power and Log-amplitude fluctuation variance.

在介绍无线光通信信道及系统模型的基础上，推导了无线光通信未编码系统和RS编码系统在已知信道边信息条件下的平均误码率，从接收光功率和对数振幅起伏方差方面对RS码编码系统和Turbo编码系统的性能进行比较。

Targets are extracted from the images according to their size, shape, intensity, etc. An improved method to identify every coded target is proposed. The gray scale centroid algorithm is applied to get subpixel locations of both uncoded and coded targets.

该算法首先根据标记点的尺寸、形状、灰度变化及位置分布等特征提取目标；然后利用非编码元与编码元的不同形状与灰度特征，提出一种改进的编码元自动身份识别方法，同时实现非编码元与编码元的分类；最后采用质心法进行标记点的精确定位，达到亚像素精度。

The bar code subsystem generates the data of bar code/clearance code in batch and produce labels, the resource seller glues the labels on the resource and puts into the resource collector, retains the clearance encoding label, the measuring subsystem scans the bar code on the resource and weighs valuation, and produces bar code/purchase price data, and the data of bar code/clearance code and the data of bar code/purchase price is induced into the defraying subsystem, and the purchase price of resource is transferred to the seller presetting account by the defraying subsystem according to the clearance encoding.

条码子系统批量生成条码/结算编码数据并制作标签，资源交售人在资源上粘贴条码标签并投入资源收集容器，留存结算编码标签，计量子系统扫描每个资源的条码并称量计价，生成条码/价款数据，然后将条码/结算编码数据和条码/价款数据导入支付子系统，支付子系统凭借结算编码将其对应的资源价款转入交售人预先开设的账户。

Firstly , this article introduced the encoding and decoding principle of two kinds of coding technology, space time code uses the difference space time grouping code, the Turbo code uses two recursions systems convolution code the encoder parallel cascade, the decoding uses the SOVA algorithm.

本文先介绍两种编码技术的编解码原理，其中空时编码采用差分空时分组码，Turbo编码采用两个递归系统卷积码编码器的并行级联，译码采用SOVA算法。

After the detailed analysis of EBCOT architecture in JPEG2000, the coding information of each bit plane and the corresponding passes can be obtained simultaneously. Therefore, bit plane-parallel and pass-parallel coding is proposed, and its VLSI architecture is shown in details.

通过分析JPEG2000和国内外提出的EBCOT编码结构，指出不仅每一个比特平面，而且对应的编码过程的编码信息可以同时获得，从而给出了比特平面与编码过程全并行处理的块编码方法，并且详细说明了实现的VLSI结构。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。