orthogonal code
英
美 [ɔːˈθɒgənəl koʊd]
正交码
双语例句
- The Construction of Optical Orthogonal Code and the Investigation of Optical Encoder/ Decoder; Each encoder has a fixed light source opposite a light detector.
光正交码的构造以及光编解码器的研究每个编码器有一个固定光源，对面有光线侦测器。 - Simulation results indicate that the optical orthogonal code block constructed by this method has fairly large code capacity and good relativity, and has a certain practical applicability.
结果表明，此方法构造的光正交码码组具有较大的码容量和良好的相关特性，有一定的实用性。 - Design and Optimization of Hyper-chaotic Orthogonal Polyphase Code Signal
超混沌正交多相码信号的设计与优选 - Self-orthogonal block code
自正交块码，自正交分组码 - By connecting part points array with Steiner system, the parameter correspondence between optical orthogonal code and Steiner system has been established.
分析了部分点阵与Steiner系统的关联；建立了Steiner系统参数与OOC码字参数的对应关系。 - The theory of the multi-length optical orthogonal code ( multi-length OOC) is introduced. A construction algorithm for the incomplete optimized OOC based on the multi-length OOC theory is presented.
文章在复合长度光正交码（Multi-length-OOC）的理论研究基础上，提出了一种基于Multilength-OOC理论的不完全优化光正交码构造算法； - Analyzes the performance of unipolar OCDMA system using optical orthogonal code ( OOC) considering the dispersion and nonlinearity effect of the transmission medium.
分析了基于光正交码（OOC）的光码分多址系统的性能。 - Performance Analysis of a TPC Coded Dual M-ary Orthogonal Code Spread Spectrum System
基于TPC编码的双多进制正交码扩频系统性能分析 - An M ary Orthogonal Code Spread SpectrumSystem ( OCSS) Based on DSP
基于DSP的多进制正交码扩频系统 - Finally, a multiple access protocol that is PRMA++ is improved and developed. The orthogonal code is used for reservation slot, hence, the packet collisions are prevented while several packets apply for reservation slot simultaneously.
最后，论文对已有的PRMA++协议进行了改进，即在预约时隙采用正交码，这样当有几个分组同时申请预约时隙时可避免发生碰撞。 - Implement of Extracting Circuit for Soft-information in M-ary Orthogonal Code Spread-spectrum System
多进制正交扩频系统中软信息提取电路的实现 - An Improved Tunable Optical Orthogonal Code Encoder/ Decoder
一种改进的可调光正交码编/解码器 - The definitions of strict-optimal and quasi-optimal(ν, k, 1) optical orthogonal codes are introduced. The relationship between optimal optical orthogonal code and cyclic difference family is given.
介绍了严格最佳和准最佳（，νk，1）光正交码的定义，阐述了它们与（，νk，1）循环差集族的关系。 - The scheme of FBGs-based OCDMA spectral-amplitude-coding ( SAC) for OCDMA system with optical orthogonal code is discussed;
讨论了基于FBG的谱幅编解码spectral-amplitude-coding（SAC）系统的原理； - The definitions of complementary code, complete complementary code and orthogonal complementary code are introduced.
本文给出了互补码、完全互补码和正交互补码的定义。 - The performance representation indicating the effects of correlation of orthogonal code modulation sequences on MAI suppression in nonsynchronous CDMA system has been derived.
本文推导非同步CDMA系统多址干扰表达式，计算正交码调制码组相关性对多址干扰的影响。 - Anti-MAI Performance Analysis and Improvement of Orthogonal Code Modulation in DS CDMA System
DS-CDMA系统正交码调制的抗多址干扰性能及其改进 - In this paper, a necessary and sufficient condition for ( v, k, 1)& Optical Orthogonal Code existence is discussed by making use of combinatorial results and method. And some conclusions are obtained.
在讨论（v，k，1）光正交码存在性的几个条件的基础上，利用组合学的知识及方法解决（v，k，1）光正交码的存在性，并给出一些结果。 - Performance of the orthogonal code CDMA system with synchronization errors
含同步误差的正交码CDMA系统性能分析 - A Digital Image Watermark Algorithm Taking Use of the Orthogonal Code Spread Spectrum Technology
一种利用正交码扩频技术的数字图像水印算法 - Optical orthogonal code ( OOC) is one sort of the spread spectrum sequences used in fiber CDMA systems.
光正交码是适用于光纤CDMA系统的扩频序列。 - The simulation results show that bipolar coding is superior to unipolar coding on MUI suppression, and the complementary code, orthogonal code is better than the shift code.
仿真结果表明，双极性编码抑制多用户干扰的性能优于单极性编码，且互补码、正交码方案优于移位码。 - Finally, four orthogonal pulses with high NESP values are derived based on Walsh orthogonal code and SDP arithmetic.
最后，基于Walsh正交码和SDP算法还得到了四个频谱利用率都比较高的正交脉冲。 - We first define the complementary code, complete complementary code and orthogonal complementary code according to the difference on the correlation function of the sequence.
本文按序列相关函数特性的不同，分别对互补码、完全互补码及正交互补码给出了定义。 - Based on that, designed an orthogonal code that are based on BIBD block and combined their respective strengths.
在此基础上，综合这两种编码各自的优势设计了一种基于BIBD区组的正交码。 - Based on principles of Spread Spectrum Communication, using orthogonal code mudulation technique in orthogonal frequency division multiplexing system, we use orthogonal codes to hide watermark information. The experiment results show that it is very practical.
基于扩频码原理，利用码分多址通信系统中采用的正交码调制技术，用正交码编码调制待隐藏的水印信息，并通过实验证明基于扩频码的DCT域数字水印算法有良好的实用性。 - By utilizing the orthogonal code construction of space-time coding, this algorithm holds low computational complexity.
该算法利用了空时块编码的正交码字结构，具有计算复杂度低、易于实现等特点。 - In this paper, the three key technologies are studied. First, several types of traditional prime code ( PC), optical orthogonal code ( OOC) are constructed and analysed, and presents the improved method to get a new code.
本文以此三项关键技术为研究内容，完成的主要工作有：第一，在对几种传统一维素数码、光正交码构造算法的实现及码字性能分析基础上，提出改进方法，得到新型码字。 - Genetic algorithm, to make the peak of side-lobe, integrated side-lobe of auto-correlation and cross-correlation as low as possible, is used to search orthogonal phase-coded signal. Polynomial fitting approach is carried out with non-linear FM signal, then orthogonal code is obtained by phase quantization.
遗传算法采用直接搜索使信号的自相关峰值、积分旁瓣电平和互相关主副比尽可能低；基于多项式拟合是通过对非线性调频信号进行相位量化得到的。 - The extended orthogonal space-time code and quasi-orthogonal space-time code are involved in the frequency-selective fading cooperative systems.
研究了在频率选择性衰落信道下，将扩展正交空时码、准正交空时码应用到协同通信系统中，并通过有限反馈提升分集性能。