编码器

The method for encoding a position interpolator includes generating key data and key value data to be encoded by extracting, from a first animation path constituted by the position interpolator, a minimum number of break points, which can bring about an error of no greater than a predetermined allowable error limit between the first animation path and a second animation to be generated by the extracted break points, encoding the key data generated in step, and encoding the key value data generated in step.

用于对位置内插器进行编码的方法包括：通过从由位置内插器构成的第一动画路径中提取最小数量的断点，生成将被编码的密钥数据和密钥值数据，这些断点可以在第一动画路径和将由所提取的断点生成的第二动画路径之间引起不大于预定的可允许误差极限的误差；对在步骤中生成的密钥数据进行编码；以及对在步骤中生成的密钥值数据进行编码。

The biconditional markers can he placed at equal or unequal intervals according to train positioning precision, and they may encode the positions of the complete rail track or only a section between two balise devices.

二值标记可以根据列车定位精度的需要等间隔或不等间隔布置，既可以对整条轨道线路统一编码，也可以与既有应答器相结合应用，每段应答器之间的轨道线路采用相同的编码。

The project will develop a bandpass sigma-delta analog-to-digital converter for digital audio broadcasting system in three years. In the first year, we had finished the system simulation for IF receiver using conventional high speed ADC and bandpass sigma-delta ADC, respectively. We also had done the analysis and design of high-order bandpass sigma-delta modulator structure. In this year, we have developed a coefficient synthesis method for high order bandpass sigma-delta modulator using high order filter transfer functions (inverse Chebyshev bandreject filter function).

本计划将在三年内发展一个能应用在数位音讯广播系统的带通sigma-delta类比/数位转换器(analog-to-digital converter，ADC)，在第一年度中我们分别以传统高速类比/数位转换器及带通SD类比/数位转换器的接收系统为例，并结合编码正交多工器(Coded Orthogonal Frequency Division Multiplex，COFDM)的技术，建立一套DAB系统模拟的方法，同时并研究有关高阶带通SD类比/数位调变器的架构及电路，并已成功开发出一个由高阶滤波器合成的高阶带通调变器。

The circuit encoding, data serialized methods and construction in the fiber transmission system are briefly described. The multiplex/demultiplex of parallel data and their different encoding function were realized by choosing a serializer/deserializer circuit with parallel input.

简述了光纤传输中线路编码、数据串行化的方法和构成，通过选择一种大位宽的串行器/解串行器电路，实现并行数据的复用/解复用以及不同的编码功能。

For reducing boundary distortion area, the elevations of grid DEM are viewed as a discrete sequence under a generalized coordinate, so that the boundary problem of two-dimensional discrete wavelet transform is turned into the boundary problem of one-dimensional discrete wavelet transform, which not only greatly reduces the boundary distortion area, improves the precision of reconstructed DEM data near the boundary, but also decreases the number of zeros adding on the boundary for wavelet transform, and boosts the compression ratio. On the basis of analyzing the distribution characteristics of coefficients in low and high frequency bands, a mixed entropy coding plan is applied, and a high efficient quantizator called"self-adaptive hard threshold"is established, which is helpful for improving the precision of the reconstructed DEM data and for enhancing compression ratio.

为了减小小波变换山区格网DEM数据压缩中边界失真区域，将山区格网DEM高程值视为广义坐标下的离散随机序列，把二维离散小波变换中的边界问题转换为一维离散小波变换中的边界问题，不仅大大减少了小波变换边界失真区域，提高了重构DEM数据边界点的精度，而且减少了边界补零个数，提高了压缩比；通过对山区格网DEM数据小波变换低频区和高频区变换系数分布特点的分析，采取了霍夫曼—游程混合熵编码方案，设计了高效、低失真的"自适应硬阈值"量化器，即对低频区变换系数不进行量化，直接进行霍夫曼编码；对高频区变换系数则先用"自适应硬阈值"方法量化处理，再进行游程编码。

After convolutional encoding , the data is reordered by the interleaver. At the receiver , the data pass through deinterleaver for the purpose of dividing possible consecutive error bursts into inconsecutive code , so it can be corrected by convolutional decoding. Matrix interleaver with CPLD is designed , because it is convenient to program. Considering various matrix interleaver , an all - purpose matrix interleaver is designed. You can ap2 ply it to your own project only altering initial parameters.

交织编码在3G系统中已经大量使用，数据通过卷积编码后进行分组交织，在接收端完成反交织，将连续误码分散成非连续误码，从而使得误码在纠错允许的范围内得到纠正； CPLD 具有方便的在线编程功能，可以用来实现交织编码；考虑到矩阵交织器的多样性而设计的通用矩阵交织器，只须通过修改一些参数值即可实现不同的交织器，大大节省了设计时间。

through the analysis of the infrared emission coding, this paper presents a kind of design scheme of infrared remote controller based on the mcu at89s52.in this paper, the remote controller learns infrared code by pulse width measuring, saves code by index, outputs carrier wave by timer.

通过对红外遥控器发射编码的分析，提出了一种以单片机at89s52为核心的自学习型红外遥控器的设计和实现方案。在方案中采用测量脉冲宽度的方法来学习红外遥控编码，采用索引存储的方法来保存学习到的红外编码，采用单片机定时器来产生红外编码发射所需要的38khz红外载波。

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。

We initiated a genetic screen for Drosophila olfactory genes by means of SG18.1-Gal4/UAS system: The result validates our screen as an rapid, effective approach for recovering genes controlling glomerular map patterning; From a misexpression screen of 1,515 P{GS} lines, we identified 23 genes that, when forcibly expressed in the olfactory receptor neurons, disrupted the stereotyped anatomy of the Drosophila antennal lobes; These genes, which have not been shown previously to control olfactory map development, encode novel proteins as well as proteins with known roles in axonal outgrowth and cytoskeletal remodeling.

本文首次利用SG18.1-Gal4／UAS基因筛选系统对果蝇嗅觉基因进行了筛选和鉴定：结果表明，所采用的方法可以快速、有效地分离到果蝇嗅觉相关基因；从1515株果蝇P{GS}品系分离到86株突变体，其中40株有明显表型，从中鉴定了23个基因，这些基因在ORN强迫表达时可以损坏果蝇嗅叶的固有结构；在筛选中发现的一些调节嗅觉图谱发育的基因可以编码新蛋白或编码参与轴突生长和细胞骨架重塑的蛋白；为了便于研究，根据基因的功能和所编码蛋白的特点，我们对分离到的基因进行了分类，即参与轴突引导和突触产生、调节转录、调节细胞骨架和功能未确定或未知的基因；并通过对嗅觉感觉器的检测发现，除了调节转录的基因外，其他基因对触觉器的数量和分布影响不明显。

On the basis of imaging distance, SLM's physical microstructure and Fresnel diffracting condition, the holographic sampling, calculating and coding methods have been designed.

论文摘要：文章探讨了面向空间光调制器的三维全息编码方法，以数字微镜器件为空间光调制器，利用截面叠加合成全息图的方法，分析了成像距离与会聚透镜焦距等参数之间的关系，根据成像距离、SLM像素结构和Fresnel衍射条件，设计了全息抽样、计算和编码方法。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。