光编码器 optical encoder(5) op tical encoder(5) optics encoder(0) 目前没有对本词条修改信息

optical encoder     Under(user′s) data rate 2.5 Gbit/s,fiber Bragg grating based optical encoder and decoder are designed and fabricated employing one-coincidence sequence,which the number of wavelengths is seven and code length is four. The spectra of optical encoder and decoder are measured.     采用波长数为7和码长为4的单重合码,在数据速率2.5 Gbit/s时设计和制作了基于光纤布拉格光栅(FBG)的光编码/解码器,并测试了光编码器和光解码器的频谱图。 短句来源     Pulse generator generates 2.5 Gbit/s non-return zero(NRZ) pulse signal,which is used to externally modulate amplified spontaneous emission(ASE) broadband source,and then optical signal is fed into optical encoder to spread spectrum.     脉冲发生器产生2.5 Gbit/s的非归零(NRZ)脉冲信号,外调制放大自发辐射(ASE)宽带光源后,通过光环行器进入光编码器进行光信号的扩频编码。 短句来源     To implement the demonstration, each optical network unit is equipped with a fixed optical encoder and a fixed optical decoder, both of which are tuned to the control channel.     为了达到上述目的，每个网络单元需配有两套光编码器和光解码器，其中的固定光编码/解码器用来收发控制信息，并由此来协调数据信息的传输； 短句来源     In the transmiting port, optical encoder turns data bits into spread spectrum sequences, then, optical decoder retverts it to data bits with the theory of correlation decoding in the receiving port.     在发送端光编码器将数据比特转换成扩频序列,在接收端光解码器利用相关解码原理将扩频序列恢复为数据比特。 短句来源     Moreover,an OCDMA platform is constructed by using two optical encoder/decoder made practically,then be experimented and analyzed with the corresponding experimental results attached. The experiment validates that optical encoder/decoder can be accomplished by optical fiber delay.     在理论分析的基础上采用实际制作的光编码器搭建了两路的OCDMA实验平台,进行实验分析并得到相应的实验结果,表明利用并行光纤延迟线可以成功地实现OCD-MA编解码. 短句来源   op tical encoder     Under(user′s) data rate 2.5 Gbit/s,fiber Bragg grating based optical encoder and decoder are designed and fabricated employing one-coincidence sequence,which the number of wavelengths is seven and code length is four. The spectra of optical encoder and decoder are measured.     采用波长数为7和码长为4的单重合码,在数据速率2.5 Gbit/s时设计和制作了基于光纤布拉格光栅(FBG)的光编码/解码器,并测试了光编码器和光解码器的频谱图。 短句来源     Pulse generator generates 2.5 Gbit/s non-return zero(NRZ) pulse signal,which is used to externally modulate amplified spontaneous emission(ASE) broadband source,and then optical signal is fed into optical encoder to spread spectrum.     脉冲发生器产生2.5 Gbit/s的非归零(NRZ)脉冲信号,外调制放大自发辐射(ASE)宽带光源后,通过光环行器进入光编码器进行光信号的扩频编码。 短句来源     To implement the demonstration, each optical network unit is equipped with a fixed optical encoder and a fixed optical decoder, both of which are tuned to the control channel.     为了达到上述目的，每个网络单元需配有两套光编码器和光解码器，其中的固定光编码/解码器用来收发控制信息，并由此来协调数据信息的传输； 短句来源     In the transmiting port, optical encoder turns data bits into spread spectrum sequences, then, optical decoder retverts it to data bits with the theory of correlation decoding in the receiving port.     在发送端光编码器将数据比特转换成扩频序列,在接收端光解码器利用相关解码原理将扩频序列恢复为数据比特。 短句来源     Moreover,an OCDMA platform is constructed by using two optical encoder/decoder made practically,then be experimented and analyzed with the corresponding experimental results attached. The experiment validates that optical encoder/decoder can be accomplished by optical fiber delay.     在理论分析的基础上采用实际制作的光编码器搭建了两路的OCDMA实验平台,进行实验分析并得到相应的实验结果,表明利用并行光纤延迟线可以成功地实现OCD-MA编解码. 短句来源   “光编码器”译为未确定词的双语例句     By analyse and simulation,wo can see the syetem overcome thedisadvantage of tranditional OCDMA system and all the users use the sameencoders and decoders,so it simplified the implement of system.     通过对该系统的理论分析和仿真研究可以看出,该系统克服了传统光码分多址系统用户数少的缺点,能实现多种速率信息的传递,而且每个用户都采用相同的光编码器,简化了系统的复杂程度,而且较多的用户数和较好的系统误码性能也说明了系统的可行性和实用性。 短句来源     This paper presents a review of OCDMA system and its distinguishing features, analyses main techniques in the implementation of OCDMA system, and discusses several problems we now have to solve.     文中在介绍OCDMA系统及其特点的基础上，分析OCDMA系统实现中的关键技术，包括：扩频序列研究、信道干扰的消除以及光编码器／解码器的实现等，并探讨目前OCDMA研究所面临的问题及解决前景 短句来源     The strategies in the designing of encoder/decoder were compared and evaluated.     较为全面地论述和评价了几种主要的光编码器、光解码器的实现方案、技术特点和应用范围; 短句来源 查询“光编码器”译词为用户自定义的双语例句     我想查看译文中含有：的双语例句

为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法，我们为您准备了出自英文原文的大量英语例句，供您参考。   optical encoder The airfoil instantaneous angle of attack data provided by an optical encoder was recorded via a FIFO data buffer into a microcomputer. 例句来源       The airfoil instantaneous angle of attack data provided by an optical encoder was recorded via a FIFO data buffer into a microcomputer. 例句来源       Using an optical encoder, digital recorder and a data-logging computer on an arm weightlifting machine, F=m and F=ma were significantly different between 25% and 94%, contrary to published reports, but not at 100% of strength. 例句来源       Tests were performed on a modified Monark cycle ergometer (Varberg, Sweden) equipped with force transducers on the friction belt and an optical encoder for velocity measurement. 例句来源       The displacement was calculated by the acceleration data being integrated twice and was compared with the results obtained simultaneously by an accurate mechanical displacement sensor based on an optical encoder. 例句来源       更多

A low temperature photoluminescence (PL) measurement facility connected with an IBM-PC microcomputer is set up for PL measurement of solid state materials especially for Ⅲ-Ⅴ and ,Ⅱ-Ⅴ semiconductor compounds. It is named as PL-PC and as shown in Fig.1. The system is interfaced with a data acquisition system (DAS) , the series 500 of Keithley Company of the United States. Convenient control and efficient data processes are demonstrated in PL-PC experiments.There are many special functions in this PL-PC system...             低温光致发光微计算机测试系统(PL-PC)是应用IBM-PC微计算机和先进的具有软件的数据采集系统(Keithley DAS Series 500)等配接到低温光致发光测量设备上,对固体材料的光致发光进行测试.特别是对Ⅲ-V族,Ⅱ-Ⅵ族半导体化合物的测试显著提高了效率和精度。实现了理想的测量控制、数据采集、数据处理和管理。对数据采集采用光编码器等作直接同步控制,采集精度从10?-0.04?可调,采集灵敏度<1mV,对测试结果(数据、谱线、计算结果、测试条件等)可以显示、记录、打印、存储等多种方式任选输出,全部过程在程序控制下进行。应用程序使用BASIC和Soft 500写成,采用“菜单”方式,模块结构,使用方便,灵活、稳定、可靠. 文摘来源          There has been an increasing interest in the research of Optical Code Division Multiple Access (OCDMA) since the mid. 90s. This paper presents a review of OCDMA system and its distinguishing features, analyses main techniques in the implementation of OCDMA system, and discusses several problems we now have to solve.             从９０年代开始，国外对光码分多址（ＯＣＤＭＡ）的研究和应用的兴趣日益高涨，而在国内目前还未见有此方面实质性进展的报道。文中在介绍ＯＣＤＭＡ系统及其特点的基础上，分析ＯＣＤＭＡ系统实现中的关键技术，包括：扩频序列研究、信道干扰的消除以及光编码器／解码器的实现等，并探讨目前ＯＣＤＭＡ研究所面临的问题及解决前景 文摘来源          A novel multipriority reservation protocol for plastic optical fiber access network based on OCDMA technology is proposed. In conventional OCDMA system only allows finite units to transmit and access simultaneously according to the number of channels restricted by BER. To resolve this problem a novel multipriority reservation protocol also is proposed in this paper. By using the reservation scheme and a distributed arbitration algorithm, channel collision and destination conflict can be avoided. The protoco...             提出一种基于光码分多址 (OCDMA)技术的塑料光纤接入网的多优先级控制协议 由于受传输误码率的限制 ,常规的光码分多址系统只允许有限个用户传输数据或接入网络 ,为了解决用有限的码字来实现多于码字数目的多媒体工作站间的信息通信 ,这种多优先级的控制协议通过使用预约和随机分配算法可以有效地解决信道冲突和目的地址的冲突问题 ,该协议可以支持多媒体信息传输中各类信息不同的时间延迟要求 另外 ,在该接入网中 ,每个光网络单元均设有两套光编码器和光解码器 ,一套用于控制信道 ,另一套用于各个数据信道 利用本文提出的协议对塑料光纤接入网的网络吞吐量和平均延时时间进行了数值分析和仿真实验 ,结果证明了这种多优先级控制协议的有效性和高效性 文摘来源   << 更多相关文摘

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