动态频率选择,dynamic frequency selection
1)dynamic frequency selection动态频率选择
1.To avoid the frequency interference and to improve the performance of communication system, adynamic frequency selection module is designed for maintaining channel balance.本文详细介绍了目前宽带无线局域网采用的"动态频率选择"关键技术,设计了一种动态频率选择的模块结构,并提出了一种实际工程中使用的链路检测算法,对其检测性能进行了仿真。
2.Thedynamic frequency selection (DFS) is an impelling means to solve the question of real-time optimization in channel assignment.动态频率选择(DFS)是解决频道实时优化的有力手段,本文针对无线局域网/无线个域网(WLAN/WPAN)等小区域无线多媒体通信系统,首次把模拟退火算法应用到DFS中,针对WLAN/WPAN的情况,给出其处理过程的完整描述,并以HiperLAN/2系统为例进行了仿真。
英文短句/例句
1.Dynamic Frequency Selection in WLAN宽带无线局域网中的动态频率选择策略
2.Frequency selection anti-jamming technique频率选择抗干扰技术
3.Calling a registered frequency when the Automatic Frequency Selection function is not used . This example calls a frequency channel 01.不使用自动频率选择功能时，调出已登记的频率。该例调出01频道的频率。
4.A miniaturized frequency selective surface with excellent center frequency stability高频率稳定性的小型化频率选择表面
5.Weighted realized volatility and its long memory and optimal frequency;赋权已实现波动及其长记忆性,最优频率选择
6.Selection of Vibration Frequency in UO_2 Fuel Microsphere Production With External Gelation溶胶-凝胶法制造UO_2燃料微球振动频率选择
7.Multi-Band Frequency Selective Surfaces Based on SRR Metamaterials基于SRR结构的多频带频率选择表面
8.Dynamic Selection of Postponable Investment Projects with Uncertain Interest-rate;利率不确定性下可推迟投资项目的动态选择
9.A PLL Frequency Synthesizer with High Multiple-Frequency一种多倍频选择的高倍频锁相环频率合成器
10.It pointed selection principle of stepping motor, and divisions of starting and running frequency range.指出了步进电机的选择原则、动和运行频率区段的划分。
11.Research on Statistical Properties for Frequency-nonselective Channels in Mobile Fading Channels;移动衰落信道中非频率选择性信道统计特性的分析与研究
12.Reality Option of Exchange Rate Cooperation in East Asia:An Analysis based on Exchange Rate Dynamics东亚汇率合作的现实选择——基于汇率动态性的考察
13.The superficial layers are often frequency selective to transmission.表层传播一般都有频率选择性。
14.The Performance Analysis of STBC-OFDM System over Frequency-Selective Fading Channels;频率选择性信道下STBC-OFDM系统性能研究
15.FDTD Method Applied to Analyzing Frequency Selective Surfaces;基于FDTD方法的频率选择表面特性分析
16.Three Frequency Selective Filters and Their Applications in China;三种频率选择滤波及其在中国的应用
17.The Influence of Frequency Extension on Software Antenna Algorithm Selection;频率扩展对软件天线算法选择的影响
18.The Analysis and Design of 10/15GHz Double-Screen Frequency Selective Surface10/15GHz双屏频率选择表面的分析与设计
相关短句/例句
dynamic frequency selection (DFS)动态频率选择
1.In this paper, we discussed the problem of frequency interference in high-density wireless LAN environment, proposed a solution based on the algorithm of Dynamic Frequency Selection (DFS) and researched the implementation of the algorithm with SNMP-based network management technology.11b的MAC协议的详细分析，引入了目前广泛应用于其他无线接入网络的动态频率选择的解决方案，并结合基于SNMP的网络管理技术探讨了该算法的实现方法。
3)distributed dynamic frequency selection分布式动态频率选择
1.A game theoretic solution fordistributed dynamic frequency selection and power control policy in cognitive radio networks was proposed.采用博弈理论对认知无线电网络中的分布式动态频率选择和功率分配策略进行建模分析,通过建立合作来协调认知节点间的行为,从而提高分布式决策算法的性能,并建立了一个模块化的通用仿真平台。
4)frequency selection频率选择
1.Analysis onfrequency selection of HF communication among the formation编队内部短波通信频率选择分析
2.By using the special reconstruction principle and the superiority in decreasing sampling frequency,the application of periodically nonuniform sampling infrequency selection is also presented.介绍了用滤波器组重构多阶采样信号的原理 ,并且利用多阶采样特殊的重构原理以及在降低采样率上的优势 ,介绍了多阶采样在频率选择上的应用。
5)dynamic selection动态选择
1.Research on web servicedynamic selection based on user policy;基于用户策略的Web服务动态选择方法研究
2.Research on Pretreatment Algorithm for Dynamic Selection of Materialized Views;实体化视图动态选择预处理算法的研究
3.The splicing/decomposible encoding scheme proposed by Xu et al is applied to the construction ofdynamic selection and mutation operators that were built respectively on the levels of genotype and phonotype of population.基于新的编码与判据 ,分别在种群层次与基因层次发展了动态变异与动态选择操作 ,进而提出了一类自适应遗传算法 。
6)dynamic choice动态选择
1.Power of enterprise developmentdynamic choice of enterprise ecology niche;企业发展的动力——生态位的动态选择
2.Study ondynamic choice model for ATIS;ATIS环境下动态选择模型的研究
3.Based on questionnaire,this article adopts cooperative game model to analyzedynamic choice of coal enterprises\" inter-regional entry modes.以调查问卷为依据,用构建的合作博弈模型分析了煤炭企业跨区域进入模式动态选择问题。
延伸阅读
动态频率扫描动态频率扫描超声学检查技术之一。通过多频探头和可变带通滤波器的结合，不用更换探头，就能自动转换工作频率，在近场使用高频率，在远场使用低频率的技术。具有高分辨力和高灵敏度这两个互相排斥的特点，可把各个单频探头的图像质量最佳之处取出并组合一体。采用超低杂波、宽带放大器及超声波发射、接收效率均佳的多层探头，从而做到分辨力高，穿透性强，图像清晰，杂波少。
