衰落与蜕变,decaying and changing
1)decaying and changing衰落与蜕变
英文短句/例句
1.The Decaying and Changing of Bai Ma Culture in Longnan District陇南白马民间美术文化的衰落与蜕变
2.Decline and Transformation --Reflections on the Status of Tujia Brocade Craftwork;衰落与蜕变——土家织锦工艺现状考察的思考
3.Empirical Study of Decline and Transformation of Zhuanghui Novel Style--On the Artistic Characteristics of the Contemporary Fictions by HUANG Xiao-pei,a Novelist from Guangdong;章回小说体式衰落与蜕变的实证——试论清末广东小说家黄小配近事小说的艺术特色
4.delayed disintegration延迟蜕变[衰变,分解]
5.To decompose, decay, or undergo a nuclear transformation.(核的)蜕变;衰变分解、衰变或经历原子核的突变
6.On the Innovation of Revenue System in the Former Period of Qing Dynasty and the Decline of Lijia System;论清代前期赋役制度的变革与里甲制度的衰落
7.Qinghai Mongolia Society"s Change and Decline at the Beginning of 18-20 Century18—20世纪初青海蒙古社会的变迁与衰落
8.The "normal" thing is for a particle to undergo decay and transmute itself into other lighter particles.粒子发生衰变,本身蜕变为其它较轻的粒子,这是“正常”的事。
9.Transformation and Disillusionment--Eliza s Growing up in Pygmalion;蜕变与觉醒——《卖花女》中伊莉莎的成长
10.Transmuting and Embedding: Small Farmers in the Process of Village Modernization蜕变与融入:乡村现代化进程中的小农
11.On the Dual Show of Personality Transformation and Society Change--Explaining Ye Mi s Novel Growing up like Escaping by Cunning Maneuvering;人格蜕变与社会转型的双重展示——解读叶弥的小说《成长如蜕》
12.Rise and Fall of the Post-photographic Museum:Technology and the Transformation of Art;后摄影博物馆的兴起与衰落:论艺术的技术与变革
13.The Modern Social Changes the Decline of Shanxi Merchants --An Economic Analysis on the Coalition between the Government and Merchants;近代以来的社会变迁与晋商的衰落——官商结合的经济学分析
14.Parametric Channel Estimation and Statistics Analysis for OFDM Systems in Time-Varying Multipath Fading Channels时变多径衰落信道中的OFDM系统—参数化信道估计与统计量分析
15.Structure and performance of noncoherent receivers for differential space-time modulation in correlated time-varying fading channels相关时变衰落信道中DSTM非相干接收机的结构与性能
16.Inoculation and transmutation--Relation among the biography of history,ancient novels and continuous stories;孕育与蜕变——史传与古代小说及续书之关系
17.Rise and Fall --On the Ups and Downs of New Liberalism;潮起潮落——谈新自由主义的兴起与衰落
18.Degeneration and Regeneration--Macroscopical Structure of Philippine Flood Myth;蜕变与再生——菲律宾洪水神话的宏观结构
相关短句/例句
Impact and Transform冲击与蜕变
3)Time-varying fading时变衰落
1.In this paper,a channel model including time-varying fading,multipath and additive noise for the shallow water acoustic channels is built,and one of the turbo coder/decoder is introduced.针对复杂多变、强多途和大起伏的浅海水声信道,本文建立了包括时变衰落、多途和加性干扰在内的信道仿真模型及Turbo码编/译码结构。
4)decay[英][d?"ke?][美][d?"ke]衰变(落)(林)
5)disintegrate[英][d?s"?nt?ɡre?t][美][d?s"?nt?"gret]蜕衰
6)degenerate[英][di"d?en?reit][美][d?"d??n?ret]v.衰退,堕落,蜕化 a.堕落的 n.堕落者
延伸阅读
衰落衰落fading接收信号电平的随机起伏,即接收信号幅度随时间的不规则变化。衰落对传输信号的质量和传输可靠度都有很大的影响,严重的衰落甚至会使传播中断。衰落主要由多径干涉和非正常衰减引起。①多径干涉。即多条射线的相互干涉,是最常见的也是最重要的衰落成因。多条射线的产生,可能是由于地面、大气不均匀层或天线附近的地形地物的反射,也可能是由于电离层多次反射、电离层中的寻常波和非常波或天波和地波的同时出现。多径干涉形成的衰落通常称为多径衰落或干涉型衰落。②非正常衰减。典型的例子有降水衰减和次折射引起的绕射衰减;后者是由于发射点和接收点之间的直射线弯曲而被地面阻挡所形成的。衰减发生时,接收信号电平低于正常值,从而形成衰落,称为衰减型衰落。其中,降水和次折射条件下的绕射所形成的衰落,分别称为降水衰落和绕射衰落。衰落通常分为快衰落和慢衰落两种。前者是指在足够短的时间间隔(如几秒、几分)内接收信号电平的快速变化。多径传输是引起快速衰落的主要原因。慢衰落是短期信号电平中值(如几分钟中值,日、月、年中值等)在较长时间间隔内的变化。传输媒质结构的变化是引起慢衰落的主要原因。由于衰落具有随机特性,需用统计方法如概率密度或分布函数描述。快衰落的幅度分布一般服从瑞利分布。在对流层散射传播中,慢衰落通常服从对数正态分布。