OFDM and dynamic spectrum optimization technology in the PLC are researched in this paper.
本文主要研究了配电网电力线通信中的正交频分复用技术和动态频谱优化技术。
The thesis mainly focuses on spectrum sensing and dynamic spectrum access of cognitive radio system.
频谱感知能力是认知无线电通信的一个重要前提，也是其核心功能之一。
A new approach called dynamic spectrum access (DSA) promises to alleviate the problem of spectrum shortage.
新兴的动态频谱接入(DSA)技术可以解决频谱稀缺问题。
The singular value decomposition least squares(SVDLS)method was improved for the various dynamic spectrum analysis.
本文改进了处理动态光谱的奇异值分解最小二乘法（SVDLS）。
The main contents of this thesis is spectrum allocation of dynamic spectrum management in the cognitive radio system.
本论文研究的主要内容是认知无线电系统中动态频谱管理的频谱分配问题。
This thesis introduces a database supporting Dynamic spectrum management as well as data processing and query method.
本文介绍的便非一类收持动态频谱管理的数据库、以及数据处放和查询方式。
Dynamic spectrum allocation optimizes the allocation of uncertain spectrum for binary interference model and accumulative interference model.
动态频谱分配针对二进制干扰模型和累积干扰模型进行不确定频谱资源的优化分配。
The bit swap and power reallocation algorithm can be an important part of dynamic spectrum optimizations of high speed power-line communications.
比特交换和功率调整算法可以作为带宽优化算法的重要组成部分，应用于电力线高速数据通信之中。
BP artificial neural network was used to establish the calibration model of subjects' total cholesterol, glucose and hemoglobin values against dynamic spectrum data.
利用BP神经网络对此样本的总胆固醇、血糖、血红蛋白进行了建模和预测。
This thesis comes from the National High-Technology Research and Development Program ("863"Program):The evaluation and testing of Dynamic Spectrum Sharing technology.
本论文来源于“863”计划重点课题——“动态频谱资源共享技术评估与测试”。
By the research of dynamic spectrum allocation algorithm based on graph coloring theory, this paper proposes an improved maximum utility spectrum allocation algorithm.
研究基于图着色理论的频谱分配算法，提出一种改进的最大效用频谱分配算法。
In this paper, dynamic spectrum access and opportunistic spectrum access have been studied, which are the two methods of spectrum usage in the authorized spectrum band.
研究了授权频段的两种频谱利用方法：动态频谱接入和基于动态频谱接入模型之一的机会频谱接入。
In our scheme, unlicensed users are allowed to adaptively select available spectrum, adopt dynamic spectrum access technology, improving spectrum utilization effectively.
该方案允许未授权用户自适应地选取可用带宽，实现了动态频谱接入，有效地提高了频谱利用率。
Research and discussion on the noise and vibration of the compressor is conducted through dynamic spectrum analysis of the compressor parts and noise and vibration test on the bench.
通过对压缩机的部件进行动力学频谱分析，结合所做的台架振动、噪声试验、研究和探讨了压缩机的振动和噪声问题。
Cognitive radio can effectively improve the utilization of spectrum through dynamic spectrum access technology, in which the channel selection affects directly the performance of the system.
认知无线电可以通过动态频谱接入技术来有效的提高频谱的利用率，而在动态频谱接入中信道选择策略的优劣直接影响着系统的性能。
In the paper, an analytic method is described in which a microcomputer is used to analyze dynamic spectrum of display device, and a hardware design of microcomputer interface is discussed specially.
本文提出了一种应用微机对显示器件的动态光谱进行分析的方法，着重于微机接口的硬件设计。
Space on the radio spectrum is the most valuable raw material in mobile telecoms, India's most dynamic industry.
在印度最有活力的实业——移动电信中无线电频谱的空间是最有价值的原材料。
The auto power spectrum curves of the dry parallel reactor are obtained from the prototype dynamic test.
通过干式空心并联电抗器的现场原型动力试验，得到该电抗器各方向的自功率谱曲线。
The dynamic response RMS under random excitation spectrum is estimated.
对随机激励谱下的动力学响应RMS也进行了估算。
The correlated information can be picked up in the frequency spectrum charts of dynamic resistance curves.
动态电阻曲线频谱图中也同样可以提取出与熔核直径相关的信息。
The series spectrum analyzer in measuring speed, dynamic range, accuracy and resolution power, have established performance standards for similar priced products.
该系列在测量速度、动态范围、精度和功率分辨能力上，都为类似价位的产品建立了性能标准。
The scatter spectrum of radio waves by a dusty plasma has been studed with the dynamic factor which was derived from the kinetic theory.
用等离子体动力论导出的动力形状因子研究尘埃等离子体的散射功率谱。
The relaxation spectrum of aqueous gelatin during its phase change from sol to gel was studied by dynamic light scattering technique (DLS, also known as PCS or QELS).
本文用动态光散射技术(DLS，又称为PCS或QELS)和粘滞测量技术，研究了明胶从溶胶到凝胶相变过程中的弛豫性质。
Dynamic protein phosphorylation is a key cellular signaling mechanism by which a broad spectrum of cellular processes is regulated.
动态的蛋白磷酸化是一种关键的细胞信号机制，参与调节广泛的细胞过程。
Using a simplified model of light interference, we discussed the physical essence of the spatial coherence demand on a photon correlation spectrum measurement system in dynamic light scattering.
利用光干涉的简化模型讨论了动态光散射中光子相关谱测量系统的空间相干性要求的物理本质。
By using seismic response spectrum and time history analysis method, the structure dynamic characteristics and deformation properties of the main building and connected structure were analyzed.
本文采用地震反应谱分析和时程分析方法，分析了主体和高位连接体结构的动力特性及结构变形特点。
By using seismic response spectrum and time history analysis method, the structure dynamic characteristics and deformation properties of main - building and connected structure are analyzed.
本文采用地震反应谱分析和时程分析方法，分析了主体和高位连接体结构的动力特性，结构变形特点。
A disc muffler is designed in the light of the spectrum characteristics and using a dynamic optimal design.
针对其频谱特性，采用动态优化设计方法，设计一种圆盘式消声器。
A disc muffler is designed in the light of the spectrum characteristics and using a dynamic optimal design.
针对其频谱特性，采用动态优化设计方法，设计一种圆盘式消声器。
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