物理符號系統 的英文怎麼說

中文拼音 [wùlǐfúháoxìtǒng]
物理符號系統 英文
physical symbol system,
  • 物 : 名詞1 （東西） thing; matter; object 2 （指自己以外的人或與己相對的環境） other people; the outsi...
  • 理 : Ⅰ名詞1 （物質組織的條紋） texture; grain （in wood skin etc ） 2 （道理;事理） reason; logic; tru...
  • 符 : Ⅰ名詞1 （符節） tally （with two halves made of wood bamboo jade metal issued by a ruler to gener...
  • 號 : 號Ⅰ名1 （名稱） name 2 （別號; 字） assumed name; alternative name3 （商店） business house 4 （...
  • 系 : 系動詞（打結; 扣） tie; fasten; do up; button up
  • 統 : Ⅰ名詞1 （事物間連續的關系） interconnected system 2 （衣服等的筒狀部分） any tube shaped part of ...
  • 物理 : 1. （事物的內在規律） innate laws of things2. （物理學） physics
  • 符號 : 1 （記號; 標記） character; sign; symbol; mark; code; notation; expression; denotation; sentinel ...
  • 系統 : 1. （按一定關系組成的同類事物） system 2. （有條理的;有系統的） systematic
  1. The future wireless mobile communication systems are expected to provide ubiquitous, high - quality, and high - rate mobile multimedia transmission. however, hostile multipath fading radio conditions give rise to serious inter - symbol interference ( isi ) ; even worse, wireless channel are often time varying, which makes the system more vulnerable and more difficult to track the channel state. orthogonal frequency dvision multiplexing ( ofdm ), which is inherently resistant against isi, has invoked a popular research interest in recent years, and has been a promising candidate technology of the physical layer for future weideband high - date - rate wireless communications. notwithstanding, ofdm is much more vulnerable to errors of both time and frequency synchronization and to that of channel estimation, and how to obtain correct timing and channel estimation efficiently is highly critical to ofdm systems. the dissertation will focus on both of the aspects of ofdm systems mentioned above

    但是無線環境的多徑特性造成通信系統中嚴重的符號間干擾，同時無線通道的時變性使得通道特性跟蹤復雜。而正交頻分復用技術（ orthogonalfrequencydivisionmultiplexing ， ofdm ）正是一種解決符號間干擾的有效傳輸手段，因此ofdm技術作為未來寬帶高速率無線通信的物理層候選技術在當前引起了一股研究熱潮。但ofdm系統對定時同步誤差和通道估計誤差非常敏感，如何在ofdm系統中準確快速地實現符號同步和通道估計是至關重要的，本論文將重點針對這兩個問題進行討論。
  2. The whole part of the data acquisition is build in a computer as two data acquisition cards. they are front card and rear card. the front card composed of four modules. they are : coin circuit module, data flow controller module, sdram array module and system bus interface module. the rear card composed of four odules. they are : asynchronous serial port interface module, adc control odule, ecg signal process module and gate control data produce module

    數據採集模式實現部分的大部分工作是在前面板上完成的，後面板主要是一些外圍電路。前面板採集卡上從物理上來說主要有四塊電路:符合電路，數據流控制器電路， sdram陣列和系統總線介面電路組成。後面板採集卡從總體物理上主要有四塊電路組成: 485串列通信電路， adc控制電路，心電數據處理電路和門控信號產生電路。
  3. Fasteners. arc welding studs loading. symbol sa. dimensions and properties physical - chimical. drawn arc stud welding system

    緊固件.電弧焊接螺柱加載.符號sa .尺寸和物理化學特性.拉制電弧焊接螺柱系統
  4. Under the analogue environment, television signals are subject to interference by other signal sources such as power line, reflections from buildings, etc. the reception quality is therefore less than ideal

    模擬系統所傳送的電視訊號容易因被其他可影響訊號的事物例如：電線建築物的反射等干擾而失真，因此，所接收的畫面及聲音質素未能符合理想。
  5. What the practical problems is often gotten is a single variable time series which has a time interval of t, reflect by a lot of interactive physics factor, containing the mark of all variates participating in movement, traditional time series analysis is to analyse going from this array to the form directly it ' s time develops, one dimension analysis loses useful information, the characteristics of phase space reconstruction method is to construct one dimension scalar quantity to high dimension vector, prop the geometry space of the state, show all dynamical information of system in phase space. the characteristic that just constructs again according to the phase space in this text, analyse the time series of responding, use the relevant knowledge of symbol dynamics and reconstruct phase space, put forward a kind of relation degree analysis method of the systematic mathematics model which has theory basis, so reach the correction of calculation mathematics model, make it accord with the actual systematic state

    實際問題中常常得到的是一個時間間隔為t的單變量的時間序列，它是許多物理因子相互作用的綜合反映，蘊藏著參與運動的全部變量的痕跡，傳統的時序分析是直接從這個序列去形式地分析它的時間演變，一維分析必然喪失許多有用信息，相空間重構方法的特點是把一維標量數據構造成高維矢量，支起狀態的幾何空間，在相空間中展示系統全部動力信息。本文正是根據相空間重構的特點，對響應時間序列進行分析，利用符號動力學、重構相空間等方法，提出一種有理論依據的系統數學模型關聯度分析方法，從而達到修正計算數學模型，使其更符合實際系統狀態的目的。
  6. Abstract : this paper discussed the meanings of landscapes in four aspects : ( 1 ) landscapes as visual perceptual objects, where landscapes and the observers are spatially separate, but landscapes are expressions of the observers ' ideology and attitudes toward nature and cities ; ( 2 ) landscapes as living places, where man live and experience to orient in and identify with the places ; ( 3 ) landscapes as systems, which are to be analysized and understood scientifically and objectively ; ( 4 ) landscapes as symbols, which tells the story and history of human beings

    摘要：本文從四個層面探討了景觀的含義： （ 1 ）景觀作為視覺審美的對象，在空間上與人物我分離，景觀所指表達了人與自然的關系、人對土地、人對城市的態度，也反映了人的理想和慾望； （ 2 ）景觀作為生活其中的棲息地，是體驗的空間，人在空間中的定位和對場所的認同，使景觀與人物我一體； （ 3 ）景觀作為系統，物我徹底分離，使景觀成為科學客觀的解讀對象； （ 4 ）景觀作為符號，是人類歷史與理想，人與自然、人與人相互作用與關系在大地上的烙印。
  7. This paper, based on the analysis of the inner structure of advertising works, holds that advertising works are a collective body composed of a multi - layer structure of matter, language and meaning and an information system of them, thus presenting some views on the concept of advertising works structures and research meanings

    從符號學的觀點來看，廣告作品是一種多層次結構構成的符號集合體，具體來講，廣告作品是一種由物質（理）層、語言層和意義層三個層次構成的符號集合體，是物質（理） 、語言和意義組成的信息系統。
  8. Physical symbol system

    物理符號系統
  9. Furthermore, this paper exploringly studies an 802. 1 la high - speed wlan with the 54mbps data rate, and presents a sort of time synchronization and frequency offset estimation method based on the frequency domain auto - correlation of the unique preamble training sequence of 802. 11 plcp frame ; the method have the high time precision, the wide frequency estimat ion range and short convergence process ; and moreover, it can applied to other frame communication system

    另外本文還對最高傳輸速率為54mbps的802 . 11a高速無線局域網系統進行了探索性研究，討論了ofdm調制技術在無線局域網中的應用；結合802 . 11a物理層數據幀結構特點，提出了一種基於前導訓練符號序列的頻域自相關時間和頻率同步方法，此方法具有定時精度高、頻偏估計范圍寬和同步建立迅速等特點，也適合於其它幀通信應用場合。
  10. The author mainly takes charge of hardware design of the system. in the design, takes the methods of designing signal amplifier and signal acquisition on different circuit boards. this design method deals with analog signals and digital signals separately which satisfies the request of digital instruments design, and resolves the problem of cross - interference between analog signals and digital signals, so the anti - interference ability of the system is greatly improved

    作者主要負責進行該系統硬體設計，在硬體電路設計中，採取將生物信號放大器和生物信號數據採集板分開設計的方法，這種將模擬信號與數字信號分開處理的硬體實現方案符合數字化儀器的設計要求，解決了不同性質信號間的相互干擾問題，使系統的抗干擾性能大為提高。
  11. In section 2, we study the fixed point, stable set and unstable set of this system. for given parameters a trapping region is found with the property that any interval of unstable set will be expand under the map, so we get the conclusion that the system has infinitely many homoclinic orbits. as a consequence of the previous conclusion, we discuss the attractor of the system

    在本文中，我們討論了一個分段線性模型，它是物理學中用來模擬r - l - diode電路行為的數學方程，通過研究，我們得到該系統的一些拓撲性質以及符號動力學中的一些結論，主要內容如下：在第二節中，我們對給定的參數值，通過數值計算研究了該系統的不動點，不動點附近的穩定集與不穩定集，發現該系統中存在一個捕捉區域：該區域中的不穩定流形總體上是擴張的。
  12. Physical symbolic system hypothesis

    物理符號系統假設
  13. When the workings of biomolecular machines inside cells that process dna and rna are compared to turing ' s machine, striking similarities emerge : both systems process information stored in a string of symbols taken from a fixed alphabet, and both operate by moving step by step along those strings, modifying or adding symbols according to a given set of rules

    當我們拿細胞內處理dna和rna信息的生物分子機器和塗林機器相比較，就可觀察到兩者間相似之處：兩個系統處理的信息，都儲存在一串可用字母代表的符號中；兩系統在運作時，都是沿著符號串，根據一套既定的規則逐步修改或添加符號。
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