English translation for "慢衰落"
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- long-term fading
slow fading
Related Translations:
衰落功率谱: fading power spectrum 慢动: slow motionslug 2 slog 慢游: swimming for calming down 慢边界层: slow boundary layer
- Example Sentences:
| 1. | Two simulation algorithms of realization channel characteristic are analyzed emphatically : shaping of slow fading with correlation and generation of frequency - selected multipath fading
重点分析了实现信道特性仿真的两种算法：慢衰落的相关性整形和频率选择性多径衰落。 | | 2. | 3 . finally , through the computer simulations , paper compares ber performance of various space - time detection algorithms for the slow flat rayleigh fading mimo
3 .通过计算机仿真,分析和比较了在平坦慢衰落mimo信道下各种空时检测算法的误码性能,仿真实验结果证明了该双向blast检测算法的优良检测性能和稳定性。 | | 3. | Finally , the application of mud in the frequency - flat slowly fading multi - path channel is introduced , and to enhance the system efficiency the joint use of the rake receiver and mud is applied in the frequency - selective slowly fading multi - path channel
最后，在讨论了平坦慢衰落信道的基础上，将rake分集技术和多用户检测技术相结合应用于多径的频率选择性慢衰落信道，以达到改良系统的性能的目的。 | | 4. | 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 | | 5. | 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。 | | 6. | 3 a novel recursive least - square ( rls ) blind space - time receiver algorithm based on the constrained condition , which can completely avoid the matrix inversion introduced into by constraints ( comparing with the normal rls ) , is proposed for multi - path slow fading cdma channels . the computational complexity of this method is not only lower than that of the normal rls , but also lower than that of both lms and ls blind space - time receiver methods that are realized based on the rosen ' s gradient projection . and the speed of convergence of the presented rls blind space - time receiver algorithm is better than that of both lms and ls blind space - time receiver methods
3 、针对多径慢衰落信道下ds - cdma盲空时接收机中线性约束二次规划问题提出一种新的递归最小二乘算法，该算法完全避免因约束而引进的矩阵求逆运算(相对于常规的递归最小二乘算法) ，不但运算量比常规的要低，而且比基于rosen梯度投影实现的最小均方( lms )与最小二乘盲空时接收机算法还低，且收敛速度比基于rosen梯度投影实现的最小均方( lms )与最小二乘盲空时多用户检测都好，将提出的新的递归最小二乘算法与提出的数据选择方案结合起来可以进一步降低其运算量，具有很大的实用价值，最后通过仿真实验进一步分析了其性能。 | | 7. | 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。 | | 8. | Contributions in this paper mainly sh ow four points : 1 the structure characteristic of the received ds - cdma signal is analyzed in the presence of multi - path slow fading effect case for wireless mobile communication . according to this characteristic , four data - selected schemes based on chip - matched filter are presented from the perspective of energy and structure of signal . and the impact of these schemes on multiple - access interference ( mai ) and inter - symbol interference ( isi ) is analyzed
本文的主要贡献在于四个方面： 1 、针对无线移动通信系统中广泛存在多径慢衰落效应的情况，分析了ds - cdma系统中接收信号本身的结构特征，根据这个特征，在匹配滤波的基础上，从能量与信号结构的角度提出了四种不同的数据采用方案，并分析了不同数据方案对多址干扰与码间干扰的影响。 | | 9. | This paper can be mainly summarized in to three aspects as follows : 1 . firstly , the paper analyzes the system model of mimo , derive the formulas of channel capacity for the slow flat rayleigh fading channel , analyzes two improtant facts affected the system capacity , and then via the computer simulation we compare the channel capacity between the tranditonal wireless system and mimo system
本文主要做了以下几个方面的工作: 1 .分析了mimo系统的信道模型,理论推导了慢衰落平坦瑞利信道下mimo系统的信道容量公式,简要分析了影响系统容量的两个重要因素并且通过计算机仿真比较了传统无线系统与mimo系统之间的信道容量。 | | 10. | 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。 |
- Similar Words：
- "慢释继电器" English translation, "慢试验" English translation, "慢收缩" English translation, "慢收缩纤维" English translation, "慢手慢脚" English translation, "慢双相波" English translation, "慢水流沉积物" English translation, "慢说" English translation, "慢说是你连他都不会" English translation, "慢死" English translation
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