characteristic signal 中文意思是什麼

characteristic signal 解釋
特徵信號
  • characteristic : adj 有特性的；表示…特性的，…特有的。 Japan s characteristic art 日本特有的藝術。n 特性，特徵，性...
  • 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. Based on the characteristic of fractured signal, time series analysis can detect the distribution of fractures. because of excellent antinoise ability, in high - order statistics theory, the theory of time series analysis includes more information and resolves more problems than second - order statistics

    時間序列分析法具有很好的抗噪能力，主要採用了高階統計量的方法，它比以前廣泛應用的二階統計量的方法包含了更多的信息。
  2. Our previous studies showed existence of apoplast cam in the plant cell and cam had many extracellular functions. so it supposed cam may be one of important extracellular polypeptides and trigger the intracellular signal transduction by binding the receptor. in this study, radiolabelled ligand is used to investigate the binding characteristic of cam and a. thaliana protoplasts. and chemical crosslinking is employed to explore binding proteins in the membrane. at first, ( 35 ) ~ s - cam was produced using ( 35 ) ~ s - labeled amino acid mixture in e. coli. sds - page and autoradiograph indicated high - purified, high - specific radioactivity ( 35 ) ~ s - cam was obtained. electrophoresis of ( 35 ) ~ s - cam is the same as that of unlabeled cam with ca ~ ( 2 + ) or egta ; a quatitive of protoplasts was prepared by enzymolysis

    首先，用~ （ 35 ） s標記的氨基酸混合物喂養工程菌成功地制備了~ （ 35 ） s標記的擬南芥鈣調素（ ~ （ 35 ） s - cam ） ， ~ （ 35 ） s - cam純度高、放射活度高、 ca ~ （ 2 + ）與egta存在時的電泳行為與未標記cam相同，可作為一種高靈敏性的探針用於進行受體學分析實驗；用擬南芥種子誘導愈傷，通過酶解制備了大量原生質體。
  3. The encryption method is n ' t considered the characteristic of the video signal, regard the image data file as the general binary scale data file to encrypt

    一是用純密碼演算法加密技術，將圖像數據文件當作一般的二進制數據文件進行加密。
  4. The characteristic of power quality signal ' s deal by wavelet multi - resolution decomposition and time - domain analysis is studied then brings forward combine the tow methods and uses it to filter bed yawp, decomposition and feature extraction. 8 kinds of power quality are classified and characterization of sag is specially classified

    然後研究了小波多解析度分解和時域分析電能質量信號處理的特點，提出了應用兩種方法相結合的方法，對電能質量信號進行去噪、分解，通過大量的計算機模擬工作，對擾動信號進行了特徵提取。
  5. The thesis presents a expert system for identifies power quality disturbance signal, after compare the artificial neural network, nearest neighbors, fuzzy decision, and expert system. we bring forward the project flexible rule - based expert system, according to the characteristic inspection and measure system, and has a deep research on the problem of this system. this project for disturbance classifies has lower mistake ratio and facility maintenance

    採用專家系統的方法進行模式識別，在對神經網路、最近鄰法、模糊邏輯和專家系統及一些交叉方法等模式識別方法進行比較分析的基礎上，根據電能質量信號故障分析的特點，提出了採用規則基專家系統的方法，該模式識別方法具有便於擴展、修改和識別率高等特點。
  6. The other research purpose is to discover characteristic information and reliable methods of reflecting spinal cord damage. due to typical damage indicators, amplitude and latent period, have bugs such as limited information and weak stabilities, this project recommends applying time - frequency analysis to monitoring spinal cord function. through analysing and comparing typical signal with stft and cwt, it is proved indicators under time - frequency distribution can be better in reflecting signal changes, espcially the wavelet transformation

    針對目前ep監測中判定脊髓損傷的指標（波幅和潛伏期）存在信息量相對較小、穩定性較差的缺陷，本課題提出利用時頻分析技術對術中脊髓功能監護進行研究，通過短時傅立葉變換和小波變換分析和比較典型信號的時頻分佈，證明時頻特徵參數能更有效的提取信號的變化信息。
  7. Furthermore, in order to supplement multi - object tt & c capability of new generation space tt & c system, gmsk modulation is recommended by ccsds because of its preferable frequency speciality and miscode performance. the thesis analyzed characteristic and demodulation realized of gmsk signal. attempting to design a universal multi - mode demodulator of bpsk, qpsk and gmsk, the thesis studied

    本文分析了gmsk信號的特點及解調實現，試圖設計一種bpsk 、 qpsk 、 gmsk通用的多模式解調器，因而研究了調制識別技術，分析了以決策論為基礎的三種信號的調制識別方法，並提出了基於人工神經網路的調制識別方法。
  8. Based on an analysis of uhf ( ultra - high - frequency ) characteristic of pd ( partial discharge ) in power transformer, using mixing technique, a signal disposal cell has been devised for the sake of facilitating common data sampling card

    摘要在分析了電力變壓器局部放電的超高頻特性的基礎上，利用混頻技術，設計了局部放電超高頻信號的信號調理單元，方便普通數字採集卡採集。
  9. The catv charge and control system is mainly composed of the management software 、 the header data modulator and the terminal charge and control equipment. i am responsible for design catv charge and control equipment and test system. the header data modulator is used to encrypt the control single from computer and transmit it into the appointed frequency. the terminal charge and control equipment demodulate out the control single from data modulator and transmit it to the addressing control part, where the demodulated fsk single is received and well - handled by the cpu unit, decode the unauthorized signals and deliver it to the shut point, shut point make use of capability of wideband anf characteristic of shut, then the signal of illegal customer will be turn off and vice versa, the legal customer can receive the normal signal

    前端數據調制器完成對計算機輸出的控制信號加密處理，將指令碼載送到一指定頻率點。終端收費控制器解調出控制信號，送至單片機尋址控制部分。單片機尋址控制部分接收經fsk數據解調器送來的信號，送入cpu單元后，解出不授權信號，然後向關斷部分送入信號，關斷部分利用pin二極體的寬帶工作能力以及關斷特性，實現對非授權用戶或者非法用戶的信號關斷，使之不能正常收視，繳費用戶進行開通正常收視，達到控制用戶通道的管理。
  10. Due to the hardware characteristic ' s limitation, such as the poor speed of a / d, d / a conversion and dsp process, the most part of sr system adopt middle course. that is to say, by using the special digital converter or running relevant arithmetic, it converts the radio signal to intermediate frequency signal and completes the base - band signal process that is n ' t the veriest sr and is named " software defined radio ( sdr ) "

    由於受到硬體性能如a d 、 d a及dsp晶元處理速度的限制，目前的軟體無線電系統多採用折中的實現方案，增加專用的數字變頻器或者運行數字變頻演算法，將射頻信號變頻到中頻，然後再進行基帶信號處理，這樣的軟體無線電系統又被稱之為「軟體定義無線電」 ，它並不是真正意義上的軟體無線電。
  11. The apparatus, with the specialities such as miniature, automation, flexibility, and individual - computer managing has become the developing trendof the testing equipment today. based on analysis of the characteristic and the system structure of the visual instrument, the paper has studied the design idea of it, put forward the exploiting methods of the visual instrument based on the object - oriented technique, exoatiated on the technique kernel of design the visual instrument under windows environment, designed a typical visual instrument " vis - 1 signal - analyzing and wave - displaying system ", which integrates multi - function instruments such as general oscillograph and ulf oscillograph real - time signal recorder wave and frequency - pedigree analysis instrument. the system has more excellent functions and characteristics than traditional instruments

    本文研究了虛擬儀器系統的設計思想，在分析虛擬儀器系統的特點及其體系結構的基礎上，提出了基於面向對象技術的虛擬儀器系統開發方法；闡述了windows環境下實現虛擬儀器的技術要點；實現了一個典型的虛擬儀器系統「 vis ? 1信號示波分析系統」 ，該系統集普通示波器、超低頻示波器、存儲示波器、瞬態信號記錄儀、波形及頻譜分析儀等多種儀器功能於一身，並具有許多傳統儀器難以達到的優越功能和性能。
  12. The if digital receiver based on software radio technology adopts the structure of fpga plus dsp, which is more powerful than other systems in signal processing, and is able to complete iq demodulation accurately and acquire characteristic of the signal. the following four aspects is included :

    該中頻數字接收機以軟體無線電思想為核心，採用dsp + fpga的硬體結構，在信號處理能力方面比以往的系統有了很大的提高，能夠精確的完成信號正交解調和抽取濾波和特徵信息的提取。
  13. Because of its invariability, poles is the most effective characteristic signal of the radar target in resonance region

    極點是諧振區表徵雷達目標的有效特徵，其具有不變性。
  14. Adopting the method of time domain and frequency range, the breakdown characteristic signal is analyzed, and the information of the abnormal state of valve clearance is obtained

    並採用時域，頻域的分析方法對故障特徵信號進行分析，從而得到氣門間隙異常狀態的信息。
  15. The corrosion current and impressed against - corrosion current of a ship modulated by shaft ' s rotation will generate an extremely low frequency electric field ( elfe ) which becomes a kind of important characteristic signal in sea water

    摘要艦船的腐蝕和防腐電流經螺旋槳轉動的調制后在海水中會?生極低頻電場，成?一種重要的特徵信號源。
  16. After the high - g arrayed micro - accelerometer was designed and fabricated successfully, this paper analyzed the characteristic signal of accelerometer in order to supply the theory sustain for the application of sensor

    本文在鉆地引信用高g陣列式微加速度計的成功研製基礎上，首先對加速度計試驗信號進行特徵分析，為傳感器應用提供理論依據。
  17. By the result of these experiments, acoustic emission ( ae ) was chosen to use in the research. at the same time, we analyse the phenomenon of acoustic emission at the base of theory, the characteristic signal of acoustic emission which comes from the faulty bearing at the angle of application, and the expression of the characteristic signal. contrast was also made on the data achieved separately from vibrational signal and ae signal, and it is proved that ae is feasible and available to the diagnosis to the fault of the rolling bearing

    主要工作有如下幾方面：對本段前期實驗室階段採用的振動法幅值域無量綱處理進行了分析，並研製了現場所使用的滾動軸承故障檢測裝置，將無量綱參數診斷法應用於段修現場，且做了大量試驗；對于現場試驗中所出現的問題進行了分析，提出將聲發射的方法用於軸承的在線故障診斷；從理論上分析了聲發射現象，從應用的角度分析故障軸承的聲發射信號的特徵以及聲發射信號特徵的表示方法，並在實驗室中，採用振動法和聲發射法實時檢測的實驗數據進行了對比和分析，證明了使用聲發射法對軸承故障檢測的可行性和有效性。
  18. The balanced multiwavelet was studied. for low - pass matrix filter p ( ), the orthogonal matrix r was selected to ensure the constant signal as a characteristic signal of balanced low - pass matrix filter rtp ( ) r, the corresponding balanced high - pass matrix filter is q ( ) r or rtq ( ) ) r which maintain the orthogonality and symmetry or orthogonality only respectively. as an application, the optfr - multiwavelet constructed by jiang was balanced and applied to image denoising and fusion

    研究了多小波的平衡處理，對低通濾波器p （ ）一般選擇平衡器為正交矩陣r ，使得常數信號成為平衡后的低通濾波器r ~ tp （ ） r的特徵信號，若要保持矩陣濾波器的正交性和對稱性，可選擇平衡后的高通濾波器為q （ ） r ；若只保持多小波的正交性，可選擇高通濾波器為r ~ tq （ ） r 。
  19. Secondly, the wavelet transform of ae signals collected in experiment is carried out with db6 wavelet and scale 3 on the basis of the signal ' s frequency analysis. the high frequency d, signal is ae characteristic signal. and by choosing the level ' s wavelet coefficient as its input, the wavelet - neural networks can be trained with the data of ae experiment, and the ae signals can be effectively recognized

    然後，在實驗與對實驗所採集數據頻譜分析基礎上，根據對小波分析用於信號處理可行性研究，本文選擇db6母小波、尺度j = 3對實驗所採集數據信號進行小波變換，變換后其高頻成分d _ 1信號即為聲發射特徵信號。
  20. Therefore it is deserved to development and widely used in many field. the peripheral control circuit is one important part of ring laser gyro. and its life, control characteristic, signal stability and relative error are one important factor which affect life and precision of mdrlg.

    激光陀螺控制電路作為激光陀螺的重要組成部分，其壽命、控制特性以及信號的穩定性和相對誤差是影響激光陀螺壽命和精度的一個重要因素。
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