衰落周期 的英文怎麼說

中文拼音 [shuāilàzhōuqī]
衰落周期 英文
duration fading
  • 衰 : 衰動詞（衰弱） decline; wane
  • 落 : 落名詞[方言] （北方對蓮花落的俗稱） a kind of folk song
  • 周 : Ⅰ名詞1 （圈子; 周圍） circumference; periphery; circuit 2 （星期） week 3 [電學] （周波的簡稱） c...
  • 期 : 期名詞[書面語]1. （一周年） a full year; anniversary 2. （一整月） a full month
  • 衰落 : decline; be on the wane; go downhill; fading; decay; decaying; lapse; erode
  1. In this thesis, first, we present the theory of sess system, the generation of the sess spreading code and its characteristics and the acquisition theory of conventional spread spectrum communication system. an efficient acquisition scheme based on periodically transmitting the synchronization head, which is composed of binary chaotic codes, using the matched filter and automatic decision threshold - level control based on a so - called constant false alarm criterion for sess system is present. the acquisition model of sess system is built and simulated in the awgn channel, the raleigh fading channel and imulti - address interfere condition

    本文首先概述了自編碼擴頻通信的原理、自編碼擴頻序列的產生方法及其特性和擴頻通信系統編碼同步的理論，然後針對自編碼擴頻通信系統提出了擴頻序列捕獲方案:周期性地加入混沌序列同步碼，並採用恆虛警率匹配濾波器捕獲法;在加性白高斯噪聲通道、瑞利衰落通道和多址干擾情況下進行了模擬，分析了各種捕獲性能:在選擇性能最優的混沌序列、適當的序列長度、虛警概率及門限值的情況下，可以獲得較短的捕獲時間和較大的捕獲概率。
  2. Business cycle, stocks, properties prices boom and bust, market, default risk simulation, control

    通貨膨脹，緊縮，景氣衰退復甦周期，股，房市價格暴起暴落操作模擬分析宏觀調控
  3. Space - time coding technique is a coding technique which is applied in mimo system. it correlates to multiple antennae and signals transmitted in different periods in temporal and spatial domains, which enable the receiver can overcome fading over mimo channel and reduce error code transmitted

    空時編碼是一種用於mimo系統的編碼技術，該編碼在多根發射天線和各個時間周期的發射信號之間能夠產生空域或時域的相關性，這種空時相關性可以使接收機克服mimo通道衰落和減少發射誤碼。
  4. First, this part discusses the characteristics of nation constructure of the combination of religion and politics in previous qin period. second, we discusses the development and declination of nation constructure of the combination of religion and politics. according to this background, we describe the five kinds of primary functional space transformation of city form in previous qin period and analyze the relations among them

    5先秦城市空間格局的變遷本部分首先探討了上古時期祭政合一的國家結構的特點，以及商周時期祭政合一的國家結構的發展與衰落，並以此為背景，就先秦城市中的五個基本的功能空間在城市中的變遷軌跡及其相互關系的演變作了初步的梳理。
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