快衰落的英文

• fast fading
• rapid fading
• short-term fading

• "快"英文翻译    fast; quick; rapid; swift; s ...
• "衰落"英文翻译    decline; be on the wane; go ...
• "短期快衰落" 英文翻译 :    short term rapid fading
• "快衰落余量" 英文翻译 :    fast fading margin
• "衰落" 英文翻译 :    decline; be on the wane; go downhill; fading; decay; decaying; lapse; erode 日趋衰落 fall into decay with each passing day; be on the decline; 日益衰落 be on the wane; 作为一个世界强国, 这个国家已经衰落。 the nation declined as a world power. 旧文化很快地衰落下去。 the old civilization was fast falling into decay
• "堕落,衰落" 英文翻译 :    decadence
• "径衰落" 英文翻译 :    multipath fading
• "抗衰落" 英文翻译 :    anti-fading◇抗衰落天线 anti-fading antenna; 抗衰落系统 anti-fading system
• "慢衰落" 英文翻译 :    long-term fading; slow fading
• "平衰落" 英文翻译 :    flat fading
• "强衰落" 英文翻译 :    deep fade
• "上衰落" 英文翻译 :    fading rise
• "声衰落" 英文翻译 :    sound fading
• "衰落，斜度" 英文翻译 :    fall
• "衰落比" 英文翻译 :    fading ratio
• "衰落机" 英文翻译 :    fading machine
• "衰落率" 英文翻译 :    fading rate
• "衰落期" 英文翻译 :    phase of decline; winter
• "衰落区" 英文翻译 :    declining region; decliningregion; fade area; fade zone; fading area; fading region; fadingarea
• "衰落中" 英文翻译 :    on the decline
• "褪色；衰落" 英文翻译 :    fade
• "下降，衰落" 英文翻译 :    decline
• "预衰落" 英文翻译 :    prefade
• "在衰落" 英文翻译 :    on the decline
• "瑞利衰落 雷利衰落" 英文翻译 :    rayleighfading

• Computer simulation results indicate that the hybrid stbc / v - blast mimo - ofdm system can combat multi - path fading and fast fading at the same time
  仿真结果和理论分析表明,后者能够同时有效对抗多径和快衰落移动信道环境。
• The simulation shows that under the fast fading channel circumstance , the wrls - svm channel estimation can acquire the high error performance
  仿真结果表明，在快衰落信道条件下，小波递归最小二乘支持向量机导频信道估计方法可以获得较好误码性能。
• Multibeam base - station smart antennas are discussed in this paper . we analyze the outage probability of mobile communication system suffering both fast fading and shadowing by means of statistical propagation model , and contrast the case that adopt multibeam smart antennas to the case that adopt omnicase . the results emulated by computer show that the outage probability of mobile communication system will diminish as the increasing of the number of beams using smart antennas no matter when suffering a single co - channel interfence or six ones
  研究了移动通信环境下的多波束智能天线，并基于统计传播的同信道干扰模型，分析了快衰落及慢衰落情况下未采用多波束智能天线与采用多波束智能天线时的中断率，并进行了比较.计算机仿真结果表明：采用多波束智能天线，不论在单个同信道小区还是多个同信道小区情况下，系统的中断率将随着波束数的增大而降低
• For power control of listening users , forward power control method are introduced based on full , multichannel , filtered report , and collision method etc . the full report method has redundancy report information , and its real - time performance is bad , multichannel report is introduced to improve the real - time performance , and filtered report is introduced to eliminate the redundancy information , finally the collision method introduced can not only get higher real - time performance but also diminish the redundancy information ; 2 . in order to meet the requirements of making the dynamic simulation of trunking group system , the ms ’ s random move equation is brought forward , the simulation of ms ’ s distribution is done and the integrated channel model are presented ; 3 . the smart predicative model of power control is introduced to overcome the delay and track the change of the complicated network , with this model , the power control ‘ s performance is greatly improved
  全汇报方法存在冗余的汇报信息,而且实时性较差,为了改善实时性提出了多信道的汇报方式,为了改善冗余汇报而提出了筛选法,最后介绍的碰撞法在减少冗余信息的同时又提高了实时性;二、为了集群功率控制动态仿真的需要,提出了移动台的随机运动方程,进行了有关移动台的分布仿真,建立了综合的信道模型;三、希望克服延时和跟踪复杂网络环境变化,提出了功率控制的智能预测模型,通过智能预测模型可以改善功率控制的性能,着重介绍了采用神经网络的方法实现智能预测的通用模型,从而跟踪复杂多变的无线环境,诸如慢衰落及快衰落(包括多径衰落、多普勒效应所引起的衰落)等网络特征,达到预测功率需求;四、采用二级正交码和智能天线(空分多址)的方法进行组内用户的识别,改进功率控制效果;五、话权用户的前向和反向功率控制方法;六、对引入gota的cdma系统提出了复合容量表示方法,并作容量分析,探讨有关gota系统的qos问题。
• Rapid fading and so on . then we introduce the qam schemes of modulation about the design of parameters and constellations of qam and show the result of 8qam and 16qam . afterward we switch to the study of adaptive project , above all , we find that we can alter the parameter of nakagami fading channels to other fadings , and then we study three different adaptive projects
  首先，阐述了移动通信中信道的衰落特性，分别分析信道的阴影衰落、慢衰落、快衰落几种模型；接着对qam的调制原理进行了分析，着重研究了这种调制方式的参数设置以及星座图的设计，文中示出了8qam和16qam的框图和波形情况。
• Combined with the data - selected schemes proposed , the computational complexity of this method can be lowered . the performance of the presented rls method is analyzed by simulations , and it is shown that this method is interesting for application . 4 time - selective channel signal model based on multipath - doppler diversity representation is given in multi - path fast fading channel , and rls space - time receiver algorithm based on time - varied constraint condition is presented and the computational complexity of this method is analyzed
  4 、针对多径快衰落信道下的ds - cdma系统，给出了基于多径-多谱勒观点描述的1百安电弓卜科东兔j忆学协士学位论文时间选择性信道的信号模型，提出了基于变约束条件下的递归最小二乘空时接收机算法并分析算法的运算量，最后通过仿真分析了所提出的方法的性能。
• At first , wireless channel and characteristic of radio propagation are investigated in order to learn them . then smart antenna , which will be adopted widely , is researched . finally , the space - time receiver technology under multipath slow fading channels and multipath fast fading channels is studied emphatically , this content is the core of this paper
  因此，本文首先研究了无线信道及其电波传播特性，以期对无线移动通信的无线信道有充分的认识；接着研究了必将广泛被采用的智能天线技术(它能引进空间分集，抗信道衰落，并提高系统容量) ；最后，基于对信道的认识并把智能天线技术结合，着重研究了在多径慢衰落信道与多径快衰落信道下的空时接收机技术，这部分内容是本文核心。