key-phase signal 中文意思是什麼

key-phase signal 解釋
鍵相信號
  • key : n 1 鑰匙。2 要害，關口，要沖。3 關鍵，線索，秘訣；解法。4 （外國書的）直譯本，圖例，題解，圖解，...
  • phase : n 1 形勢，局面，狀態；階級。2 方面，側面。3 【天文學】（月等的）變相，盈虧；【物、天】相，周相，...
  • signal : n 1 信號，暗號；信號器。2 動機，導火線 （for）。3 預兆，徵象。adj 1 暗號的，作信號用的。2 顯著的...
  1. Oocyte maturation involves the activation of various signal trans - duction pathways that converge to activate maturation - promoting factor ( mpf ) ; this is a key activity that catalyses entry into m - phase of meiosis i and meiosis ii

    在爪蟾卵中有大量未被激活的cdc2 - cyclinb復合物，稱為pre - mpf ， pre - mpf在tyr15位脫磷酸變成活性mpf ，起到這個作用的磷酸酶是cdc25 ， cdc25的活性通過磷酸化和細胞位置進行調控。
  2. The major job is manufactured a transmitter, which has three upmixer channels. its function is to up convert the signals from c - band to ka - band. the input local oscillator is provided by a low frequency crystal oscillator which has a good performance of phase noise, through 512 times multiply to ka band. this sysetem is used in the laboratory as transmitter source of the fuze, for the multidimensional objects in practise, which lead to the complexity of the reflect signal, so the amplitude, frequency and the phase of the transmit signals both have a key role in dealing with the reflection signals. therefore, this system requires for both the coherence of the single channel ’ s amplitude, phase and multi channels

    本文的主要工作是應用戶要求製作一具有三發射通道的上變頻系統，可以將c波段的微波信號上變頻到ka波段的毫米波信號。系統的本振輸入基頻由一相位噪聲非常好的低頻率晶振提供，經過512次的倍頻放大至ka波段。本系統作為實驗室中引信的發射源，由於目標反射信號具有時變的多維性，反射信號變得極為復雜，在信號處理時，不僅信號幅值、頻率有決定意義而且相位關系也很有決定意義。
  3. 2. firstly this paper introduce the whole machine balancing principle and method for dual - rotor systems with little rotating speed difference firstly, then discuss key points such as picking up base signal, picking up " pai " signal, measuring rotor speed, capturing the value of wave crest and through, calculating the phase values of unbalanced weight, processing odd phases and finding each rotor ' s amplitude. on the foundation of above theories, using signal process technique and chip microprocessors technique, we developed a portable intellectual instrument, the first domestic device. which can balance dual - rotor system with little rotating speed difference quickly and accurately

    本文從不解拍整機動平衡原理出發，在詳細討論基準信號、拍振信號的提取；轉速的測量；拍峰、拍谷的捕捉：不平衡相位的求法、特殊相位角的處理；內、外轉子幅值的確定等關鍵問題的基礎上，應用信號處理技術和單片機技術研製成功國內第一臺性能穩定、操作簡單、成本低廉且平衡速度快，平衡精度高的便攜式微速差雙轉子現場整機智能動平衡儀。
  4. The work of this dissertation is focused on research of some key technics in signal design and processing of mcpc signal. the main content of the dissertation is summarized as follows : it gives a detailed description of the form of the mcpc waveform and its mathematical model, and analyses the formation and properties of phase coded sequence. it discusses the effect of signal parameters on autocorrelation, power spectra and ambiguity function in forms of single pulse and pulse train and compares different kinds of single pulse signals and pulse train signals

    本文圍繞著多載波相位編碼信號在信號設計與信號處理的若干關鍵問題進行了研究，主要做了以下工作:描述了多載波相位編碼信號（ multicarrierphasecoded ，簡稱mcpc ）的信號形式，給出了其數學模型，對其中相位編碼序列的構成方式與特性進行了分析;從單脈沖和脈沖串兩種信號形式入手，對多載頻相位編碼信號的參數在自相關函數、功率譜密度和模糊方程上的影響作了詳細地討論，對不同調制方式的單脈沖和脈沖串信號進行了比較。
  5. The purpose of this paper is to resolve some key technologies of the amplitude - modulation inductive displacement transducer signal processing circuit with nanometer resolution, such as the design of high stability signal generating circuit ; the technology of high precision digital phase - sensitive detection circuit ; the technology of digital filter and linearization, etc

    本文主要研究調幅式電感位移傳感器精密測量系統中涉及的高精度載波信號發生技術、高精度數字相敏檢波技術、數字濾波及線性擬和等關鍵技術，目的是進一步改善調幅式電感位移傳感器精密測量系統的測量精度，適應納米級測量的要求。
  6. The technical noduses of the harmony loading system, such as multi - channel signal synchroniza - tion, signal phase modulating and frequency excursion control are discussed. the key steps and actualization details are also provided

    同時，論文探討了協調加載控制系統的主要技術問題，如多餘力、多通道相位協調和頻率漂移的控制等，並給出了系統實現的細節。
  7. In this thesis, a kind of 2 - dimention signal acquisition method is presented which combines parallel pn code phase and carrier frequency acquisition, as a result the acquisition time is shortened greatly. besides, according to the fact that the detection of spread spectrum signals is always the key point in the receiving system

    在擴頻信號的捕獲過程中要求有較小的時延和較高的概率，本文介紹一種二維信號的捕獲方法，這種方法結合偽pn碼和載波頻率的獲取，捕獲時延將大幅度降低，實際上，擴頻信號的檢測是接收系統的關鍵。
  8. This paper also introduces two aspects, one is the use of single - chip computer - intel 16bit as key to realize signal collection, data processing and control of phase selection, the other is the communication of mcu and pc realized by universal serial bus ( usb )

    選相分合閘裝置的設計包括兩部分：一是下位機部分，主要以80c196kc單片機及其外圍電路為主，完成交流信號的採集、數據處理以及對交流電器分合閘的控制；另一部分是單片機與pc機的通訊部分。
分享友人
分享到 Line

分享到臉書