signal combination 中文意思是什麼

signal combination 解釋
信號組合
  • 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...
  • combination : n 1 結合，合併，混合，聯合，配合，組合。2 合作；共謀，同謀；同黨。3 〈pl 〉〈英國〉連褲襯衣。4 【...
  1. This thesis studies the law of affecting de - noise result and the selection of the threshold and the wavelet function, the combination of wavelet and fft in the fault diagnosis of turbine - generator sets : by the de - noise anslysis of blocks and sin signals, concludes : to blocks signals, usually adopts soft threshold ; the law of affecting de - noise result is when use wavelet auto - de - noise, with the increasing of decomposed level, the de - noise result becomes worse while the level blow the 3, when the level above 3 and when uses wavelet packet, it is the other way round ; the best de - noise methods of the signal is that uses " dbl " wavelet function, three level, soft and " rigrsure " threshold

    本文研究了分解層數對消噪結果影響的規律和閾值、小波函數的選取，結合小波分析與fft分析診斷汽輪發電機組的故障。通過對brocks和sin兩信號的分析，得出：對blocks信號進行分析一般採用軟閾值；分解層數對消噪結果影響的規律為用小波自動降噪在分解層數小於3時，隨著分解層數的增加，消噪結果變好，反之，則變差，用小波包降噪時隨著分解層數的增加，消噪效果變好；適宜選用dbl小波軟rigrsure閾值自動消噪。
  2. It was important glucoprotein modulating cell functions by combination to idiosyncrasy receptor on cell membrane, which inducing process of cascade signal magnifying, then passing signals into nucleus to induce the modulation of the serial gene expression and viarous physiological reaction, and inhence immunity and antivirus

    人-干擾素（ hu - - ifn ）是人體因病毒感染或其它誘生劑作用等所產生的一類非特異性抗病毒物質，是調節細胞功能的一類重要的糖蛋白。
  3. Combination home signal aspect

    組合進站信號示象
  4. With practical engineering examples, this paper deals with the collection of surface wave signal along with seismic refraction exploration, the utilization of surface wave components to make analysis during data processing, the thickness division of overburden bed, strongly - weathered bed, intermediately - weathered bed and weakly - weathered bed in combination with the refraction data, and mutual reflection and interpretation of the burial condition of the bedrock surface

    筆者結合工程實例，介紹了在地震折射勘探中同時採集面波信號，在資料處理時利用面波組份進行分析，配合折射資料對測區覆蓋層、強風化層、中風化層及弱風化層厚度進行劃分，同時相互映證解釋基巖面的埋藏情況。
  5. The controllable ability of valve timing, duration, and lift in the haecvvs has been proved. the map of common rail pressure, duration of control signal and the peak lift, the map of common rail pressure, duration of control signal and valve event duration, the map of the combination ability of valve event duration and valve peak lift etc. have been obtained from the experiment

    在研究了電控可變氣門系統氣門正時、氣門開啟持續期、氣門升程的可控性的基礎上，整理了共軌壓力、控制信號持續時間與氣門峰值升程的map圖，共軌壓力、控制信號與氣門開啟持續期的map圖，氣門升程與氣門開啟持續期配合范圍map圖。
  6. The 32 - bit cpu core with enhanced multiply accumulate emac unit provides optimum performance and code density for the combination of control code and signal processing required for mp3 decode, file management, and system control. fs2401clqn is a single - chip mp3 audio decoder

    當用戶端的pc與存儲媒介之間透過usb 2 . 0介面做資料交換時，因僅需要cpu最低程度的參與，而大多是以硬體處理方式，所以可以達到高速傳輸的目的。
  7. Secondly, the paper researches blind estimation of signals parameters, including the carrier frequency, signal to noise ratio and symbol rate of digital modulations. thirdly, with the combination of parameters from early studies on the decision theory, a set of robust feature parameters are extracted from signal power spectrum and the power spectrum of the second and fourth power of signal. based on these parameters, the proposed scheme is able to recognize 12 types of common used modulations, namely ask 、 2fsk 、 msk 、 4fsk 、 psk 、 qpsk 、 / 4qpsk 、 8psk 、 am 、 dsb 、 ssb 、 fm

    接著，對信號功率譜、平方譜及四次方譜進行研究，針對通信中常用的調制方式，結合前人提出的基於決策理論中的特徵參數，設計了一組對信噪比和信號調制參數不敏感的分類特徵參數，利用上述參數完成了一種基於信號頻域的識別方法，可以對ask 、 2fsk 、 msk 、 4fsk 、 psk 、 qpsk 、 / 4qpsk 、 8psk 、 am 、 dsb 、 ssb和fm這12種常用調制方式進行識別。
  8. This control system adopts creditable plc for real control ; it sends many simulating signals collected by old sand temperature of inlet, suction opening temperature of double disk, inner sand temperature of double disk, current of mainframe and current of fan ; meanwhile, the operation signal and switching value signal outputted by material movement transducer is inputted to switching value module of plc ; it gets evidence of water feeding after cpu account ; the operation result of cpu is outputted by switching value of plc to control unlock combination of coarse, middle and thin water feeding electromagnetically operated valve and then gets different water feeding quantity

    該控制系統採用高可靠性的plc可編程序控制器進行實時控制，傳感器所採集的入口舊砂溫度雙盤抽風口溫度雙盤內砂溫主電機電流及鼓風機電流等模擬量信號直接輸入plc的模擬量採集模塊，同時加砂設備運轉信號及加砂設備物料移動檢測傳感器發出的開關量信號輸入plc的開關量模塊，由cpu獲取經運算而得到加水計算依據， cpu運算結果直接由plc的開關量輸出控制粗中細加水電磁閥的開啟組合，而得到不同的加水量。
  9. This paper is mainly considered : 1 ) how joint coded modulation transmitter is designed based on the iterative decoder. 2 ) the combination of ldpc code with bit - interleaved coded modulaton. 3 ) the optimization of two dimensional signal constellations in joint coded modulation with iterative decoder

    本文研究工作的重點在於: 1 ）迭代譯碼對聯合編碼調制方案設計的影響; 2 ）新的糾錯編碼和比特交織編碼調制的有機結合; 3 ）高階星座的最優化問題。
  10. Such organic combination of the determined signal analytical method for potential field analytical continuation with the stochastic signal analytical method for principal component analysis provides a new channel for the inversion of geophysical potential field

    這種將位場解析延拓的確定信號分析法與主成份分析的隨機信號分析法有機聯合，為解決地球物理位場反演問題提供了一種途徑。
  11. Based on netomac, a software package for power system simulation, the model and algorithm of pre - dispatch schedule in generation markets, excitation system parameter setting, and power system small signal stability anaylsis are studied in this thesis. the main work is as follows : a model of pre - dispatch schedule is proposed, whose target is to minimize the market purchasing price ( mpp ) in the whole pre - dispatch period. then according to the characteristics of pre - dispatch schedule, the model of pre - dispatch schedule is simplified to minimize the mpp in each pre - dispatch time, and a three - step algorithm of pre - dispatch schedule is designed : dealing with the optimal problem in the whole period of pre - dispatch with static planning method, solving the problem of combination of machines with pr1 method, resolving problem of optimal power flow ( opf ) with modified powell method

    本文基於netomac模擬軟體，以發電市場預調度計劃模型及演算法、勵磁系統參數整定和電力系統小擾動穩定性分析為研究內容，主要做了以下工作：建立了以整個預調度計劃周期內的市場購電價格最小為目標的發電市場預調度計劃模型，並根據預調度計劃問題狀態數多、變量多、混合整數、非解析的特點，將預調度計劃模型的目標函數簡化為各時段的市場清算電價最小，設計了三段式預調度演算法：用靜態規劃法求解整個預調度計劃周期內的優化問題；用優先級法求解機組組合問題；用改進的powell法求解最優潮流問題。
  12. That would be beneficial to hong kong s transport system. these applications include driver information systems to provide up - to - date traffic information and route guidance to drivers, automated tracking, dispatch and weigh - in - motion systems to improve the productivity of commercial and public transport fleets, and a combination of traffic signal control, speed control, lane control and ramp control systems to help alleviate congestion

    這些應用項目包括為駕駛者提供最新的交通資訊及路線指引的駕駛資訊系統；可增加商業及公共運輸車隊生產力的系統、功能包括自動追蹤、發送及途中磅重等；以及結合交通燈號控制、速度管制、行車線控制、斜道車流管制等系統，以紓緩擠塞。
  13. These applications include driver information systems to provide up - to - date traffic information and route guidance to drivers, automated tracking, dispatch and weigh - in - motion systems to improve the productivity of commercial and public transport fleets, and a combination of traffic signal control, speed control, lane control and ramp control systems to help alleviate congestion

    這些應用項目包括為駕駛者提供最新的交通資訊及路線指引的駕駛資訊系統可增加商業及公共運輸車隊生產力的系統功能包括自動追蹤發送及途中磅重等以及結合交通燈號控制速度管制行車線控制斜道車流管制等系統，以紓緩擠塞。
  14. This paper designed a programmable base band signal generator of variable bandwidth based on the combination of fpga and dss using large - seale integrated circuits

    利用大規模的集成電路技術，基於fpga和dss相結合，設計一種帶寬可轉換的，具有可編程的基帶信號產生器。
  15. In morse and similar codes, the short sound or signal used in combination with the dash and silent intervals to represent letters, numbers, or punctuation

    在莫爾斯或其它電碼中的點短音或符號與長劃及無音間隔結合起來表示字母、數字或標點
  16. A new and particularly application friendly product is a sensor - measure - ment amplifier combination, which provides a ready to fit measuring unit with standard signal output

    新型的利於應用的產品是傳感測量放大器結合的產品，它提供了標準信號輸出的待安裝測量單元
  17. Combination test signal

    組合測試信號
  18. According to the analyzing on the questions such as the parameters of moire stripe signal influence on photoelectric rotary encoder interpolation errors, lissajou chart ' s characteristics and applications in interpolation errors measurement, we developed a dynamic measurement method about the parameters of moire stripe signal and interpolation errors evaluation. with the combination of hardware and software, a dynamic measurement system of interpolation errors of photoelectric rotary encoder is designed

    通過分析莫爾條紋信號的各種信號質量指標對光電軸角編碼器細分誤差的影響， lissajou圖特性及其在細分誤差測量中的應用，研究出光電軸角編碼器光電信號參數測量及細分誤差評估的動態測試方法，並針對這一方法通過硬體及軟體技術的結合，設計出一套光電軸角編碼器細分誤差的檢測系統。
  19. In mimo systems, the signal can be sent and received through multiple antennas or antenna arrays. the combination of ofdm and mimo can effectively alleviate the problem of multi - path propagation, increase system capacity, and obtain more robust system capability, so they are considered as the main stream techniques of the future wireless communication system

    Ofdm技術固有的抗通道多徑和頻率選擇性衰落特性以及mimo在提高系統頻譜利用率，改善無線通信系統性能等方面的巨大作用，使得這兩種技術的融合成為了下一代移動通信系統的必然選擇。
  20. There are difficulties in noisy speech recognition, especially low signal - to - noise rations are more difficult. this paper describes briefly six methods for speaker - dependent noisy speech recognition isolated words. they are lpc prediction error method, one - side auto - correlation sequence lpc, acoustic front end processing, canonical correlation based on compensation method, combination of features method and increase of poles method. the experimental results show that all the six techniques can improve effectively noisy speech recognition, and the best noisy speech recognition rate is above 80 % when snr 0db

    它們是：線性預測誤差法，單邊自相關線性預測法，語音前端聲學處理法，正則相關分析的譜變換補償方法，特徵綜合法和同模極點增加法。實驗結果表明，這6種方法都有效地提高了噪聲環境中語音識別率，其中較好的方法在強噪聲環境中信噪比為0db的語音識別率達到80 %以上，為信噪比較低的噪聲環境中自動語音識別展現了美好前景。
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