用偏振缠绕的光子对进行量子通讯和密集编码

研究如何利用两粒子形成的EPR-Bell态传输光子的量子态,并提出依赖于两光子缠绕的密集编码实验设想。     

BCH编码设计仿真及系统分析

BCH是纠错能力可控的纠错编码,是循环码的子类.介绍了BCH码的编码原理和设计方法,在特定信道和调制方式下对经过BCH编码的系统进行仿真,分析BCH码在特定信道下的编码增益,为实际应用提供理论依据.     

Adaptive early termination of fast mode decision in MVC based on inter-view correlation

Variable size motion estimation (ME) and disparity estimation (DE) are employed to select the best coding mode for each macroblock (MB) in the current joint multiview video model (JMVM).This technique achieves the highest possible coding efficiency,but it results in extremely large computation complexity which obstructs the multiview video coding (MVC) from practical application.This paper proposes an adaptive early termination of fast mode decision algorithm for MVC.It makes use of the coding information o...     

编码视角下的进城农民工子女学业成绩不良原因之探析

进城农民工子女在进入城市后面临着两种编码的转化,即从以限制编码为主的场域转换为以精密编码为主的场域.两种编码的差异性主要体现在:教学内容的设计与农民工子女的家庭文化特征不相匹配;教师教学的实际内容与农民工子女学习内化之间存在差距;学业评价的内容和标准与农民工子女生活境遇区隔明显.在学校中,教师应采用多样性教学策略和多元化评价方式;社区、学校和家庭要形成教育合力,使他们更好地适应城市生活,改变其惯习的生活方式,以提高他们的学业成绩.     

编码自动生成的一个实例

本文根据自治区对全疆中小学教师进行专业基础知识水平的测试的要求，给出了用visual foxpro 6．0数据库管理系统编制的实现考生准考证号的编排的程序段。     

多电平编码数字音频传输系统的设计与实现

多电平编码调制技术是新一代超高速光通信系统中广泛使用的编码调制技术,其硬件电路由集成电路实现,内部结构复杂,不易理解。为了满足综合实验教学的同时,使学生了解前沿技术,设计了多电平编码的数字音频传输系统。该系统可以实现双路音频信号的同时收发,模块化的设计思想使学生通过观察各阶段时域波形直观了解各模块功能。同时,可以通过自主设计替换各模块,改善系统性能。该系统已成功应用于本科生创新实验,实践表明,该系统为学生提供了易于创新和综合的实践环境,提高了学生的综合运用能力和创新能力。     

Optical encryption with cascaded fractional wavelet transforms

INTRODUCTION Recently, with the development of science andtechnology, more and more people become interestedin researching image encryption techniques. Manymethods have been proposed for optical image en-cryption. Random phase encoding methods and digi-tal holography techniques are effectively used inencrypting (Javidi and Nomura, 2000; Unnikrishnanet al., 2000a; Hennelly and Sheridan, 2003; Nishchalet al., 2004). Meantime some important properties oflight are used to realize encryptio…     

超等长训练法在投掷运动员爆发力训练中的运用

文章分析了超等长工作原理及其在投掷技术中的具体表现,指出了超等长练习应注意的问题。     

Pattern design on 3D triangular garment surfaces

This paper focuses on a pattern design method for a 3D triangular garment surface. Firstly, some definitions of 3D style lines are proposed for designing the boundaries of patterns as drawing straight lines or splines on the triangular surface. Additionally some commonly used style lines are automatically generated to enhance design efficiency. Secondly, after style lines are preprocessed, a searching method is presented for quickly obtaining the boundaries and patches of a pattern on the 3D trian- gular surface. Finally a new pattern design reuse method is introduced by encoding/decoding the style line information. After style lines are encoded, the pattern design information can be saved in a pattern template and when decoding this template on a new garment surface, it automates the pattern generation for made-to-measure apparel products.     

基于TMS320C6713的G.729算法的优化及实现的研究

通过研究 G.729语音编码算法的原理,分析其基本特征及 DSP 体系结构特点,提出了一些有效的优化措施。在 TI的 TMS320C6713 DSK 平台上实现了该算法的编解码实验,结果证明其输出语音仍然保持了较高的合成品质