first signal 中文意思是什麼

first signal 解釋
第一信號
  • first : adj 1 最初的,最早的。2 最上等的,第一流的。3 基本的,概要的。4 高音(調)的。n 1 最初,第一;第...
  • 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. In this paper, the concept of acceleration ambiguity function ( aaf ) and acceleration resolution is put forward for the first time. using aaf, the effects of target ' s relative acceleration on several outputs of a linear - phase matched filter are analyzed, such as the output signal - noise - ratio loss, the doppler resolution, the constraint on optimal accumulative time ( opt ) and their tolerable limits

    論文首次提出並研究了加速度模糊函數和加速度分辨力的有關概念,並以加速度模糊函數為分析工具,詳細討論了加速度對線性相位匹配濾波器的輸出信噪比的損失程度、對多卜勒頻率分辨能力的影響程度、對最優相參積累時間的約束關系以及線性相位匹配濾波器輸出受加速度影響的容限等問題。
  2. It is the first time that the theory of wavelet has been applied in the signal processing of the codog power plant experiment rig and wavelet transform denoising was used, it may keep the aiguille and saltation parts, wipe off the noise and pick up the useful signal, it is benefit to analysis the result in experiment

    把小波分析理論應用於codog實驗臺信號處理中,用小波變換進行信號消噪,可以很好的保存有用信號中的尖峰和突變部分,將信號的噪聲部分去除,從中提取出於有用信息,更有利於實驗結果分析。
  3. 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。
  4. 1909 the sos distress signal was transmitted for the first time when the cunard liner slavonia was wrecked off the azores

    丘納德遠洋客輪"斯拉活尼亞號"在亞速爾群島附近遇難時發出sos呼救信號,這是世界上第一次應用呼救信號。
  5. That is, vibration caused by the first part of the command signal is canceled by vibration caused by the second part of the command. input shaping is implemented by convolving a sequence of impulses, an input shaper, with any desired command

    輸入成型通過把參考輸入信號和一系列脈沖進行卷積,得到成型輸入信號,而成型輸入信號作用於控制對象,其中這脈沖序列就是輸入成型器。
  6. This paper analyses the critical angle method that often use in focus detected. we receive two relations, the first relation between refractive index of the critical - angle prism and focus - error signal ; the second relation between numerical aperture of object lens and out - of - focus error signal

    本文針對伺服系統中常用的調焦方法-臨界角方法進行了分析,理論上得到臨界角棱鏡的折射率、物鏡的數值孔徑與離焦誤差信號的關系。
  7. In this article, double threshold, iteration is applied to improve segmentation algorithm based on signal energy, and short - time zero - crossing rate is proposed for the first time to determine the exact boundaries between different components of heart sound

    本文通過使用雙門限、迭代等方法,改進了基於信號能量的分段演算法,並首次引入短時過零率以更準確地定位分段邊界。
  8. There are two innovated points in this paper. the first is that we abandoned mechanical apparatus in deflexion, and this is good for signal ’ s disposal. the second is that we adopted nlc facility and this will largely lighten apt systerm ’ s size, weight and power consumption

    本論文的創新主要在於兩個方面: ( 1 )摒棄了機械式的偏轉控制,便於其後的信號處理。且該器件驅動電壓低(約3伏) ,功耗小(毫瓦級/平方厘米) 。
  9. Finally, this thesis discussed these following questions : first, the algorithm of used the error image for improving the purpose of the edge detection. secondly, we have transformed the solved question of the first and the second directional derivative to frequency domain and founded they have a single formulae in frequency domain. thirdly, we have described the singular signal and the noise by using the correlations of the neighbor data after wavelet transform

    最後,在傳統的邊緣檢測演算法和小波分析的邊緣檢測演算法之外,對以下幾個方面也進行了一些討論: 1 )利用誤差圖像來提高邊緣檢測效果的演算法; 2 )將求解任意方向的一階、二階方向導數的問題轉換到頻域中去求解,發現在頻域中它們具有簡單易用的公式,使得原來求解任意方向的一階、二階導數的比較困難的問題變得容易實現了。
  10. Down chiang minus shan wheel switch position exorbitance, elevator come down shih disapprove down chiang minus signal first yu down slow down signal

    下強減單輪開關位置過高,電梯下降時不可以下強減信號先於下減速信號。
  11. Down chiang minus shan wheel switch position exorbitance, elevator come down shih disapprove down chiang minus shan wheel signal first yu down slow down signal. please

    下強減單輪開關位置過高,電梯下降時不可以下強減單輪信號先於下減速信號。
  12. Based on the current signal from the proceeding stage, the first order - modulator designed could be simplified in the precondition of performance satisfaction, and it is good in accomplishing signal conversion and could be incorporated with the forestage bandgap circuit

    根據前級溫度傳感電路的電流信號,在滿足性能要求的前提下盡量簡化電路,設計出的一階-調制電路不但很好地完成了信號轉換,而且更符合一體化結構的要求。
  13. This thesis tries to update the cmdsr system to achieve the characters below : real - time, better robust, higher recognition rate, non - special - man. considering the disadvantages of traditional improved spectrum subtraction speech enhancement, this thesis proposes the theory of fuzzy spectrum subtraction based on the fuzzy theory and improved spectrum subtraction speech enhancement ; as for the difficulties of detecting the endpoint of speech signal, the thesis gives the table of initial and the improved parameters, with which we can confirm the endpoints of mandarin digit speech ; the thesis puts forward two - level digit real - time speech recognition system, the first level is based on discrete hidden markov model which is linear predictive coding cepstrum ( lpcc ) and difference linear predictive coding cepstrum ( dlpcc ), the second level is based on formant parameters ; as for the realization of hardware, the thesis depicts the realization of every part of cmdsr based on the tms320vc5402 in detail ; as for the development of software, the thesis gives the software design flow chart of cmdsr, simulates the basic theory with matlab language and gives the simulation results

    針對傳統的「改進譜相減法語音增強」參數設定單一、環境適應能力差的缺點,提出了一種利用模糊理論和「改進的譜相減法」結合的「模糊譜相減法語音增強」 ;針對語音信號端點檢測困難的特點,通過matlab模擬試驗,給出了能夠準確確定數碼語音端點的初始和改進參數表;提出了利用基於線性預測編碼倒譜參數和差分線性預測編碼倒譜參數相結合的離散隱含馬爾可夫模型進行第一級識別、利用共振峰參數進行第二級識別的兩級漢語數碼語音識別系統,在保證系統實時性的同時,實現連接漢語數碼語音識別系統識別率的提高;在硬體實現上,詳細闡述了基於tms320vc5402的連接漢語數碼語音識別系統各部分硬體設計;在軟體開發上,給出了連接漢語數碼語音識別的軟體設計各部分的流程圖,並對各部分進行了matlab模擬,並給出了模擬結果。
  14. He stood watch day and night with a lance provided with a lighted slowmatch in his hand, and he had orders to blow up everything - kiosk, guards, women, gold, and ali tepelini himself - at the first signal given by my father

    他的任務是晝夜看守一支槍,槍尖上拴著一支燃燒的火繩,他已接到命令,只要我父親發出一個信號,他就把一切都炸掉水寨衛兵女人金洋和阿里鐵貝林本人。
  15. The first signal did not include the color yellow for caution, but that was later added within a few years

    起初他們選擇綠色作為「注意」信號,明亮作為通行的信號,結果遭到慘敗。
  16. In the system, the low voltage power line is the first signal tunnel without any other relay equipments between customer terminal and substation collector, public telephone line serves as the second signal tunnel between substation and management center computer. as a breakthrough of conventional concept of electricity meter, this thesis initiate a new concept, namely, intelligent power customer terminal ( shortly, customer terminal ), which is developed with spread spectrum plc communication functional and possesses many advanced functions, such as, in addition to electric energy acquisition, guarding against electricity pilfering, preventing wrong connection, protecting malfunction, remote communication ( for example, remote power supply or halt, remote configuration of electricity meter, remote load control, etc ), and so on

    本文首先系統地總結了目前國內外低壓電力網數據傳輸技術的研究現狀和存在的問題,在此基礎上,從理論上論證了在低壓電網上應用擴頻載波數據通信技術的可行性和優越性,並重點論述了擴頻載波技術抗電力線噪聲干擾的機埋;本文提出了一個新穎的基於低壓電力線擴頻載波通信技術的集中遠抄系統的總體方案,即由用戶終端、集中器和電能管理系統所組成的網路系統,其中,用戶終端到配變集中器用低壓電力線作為通道,中間無需其他硬體中繼設備,集中器到電能管理系統用公用電話網作為通道。
  17. Effective activation of antigen - specific t cells not only requires the first signal transduction through t - cell receptor ( tcr ) binding with peptide - mhc complex on the antigen presenting cell ( apc ), but also needs the second signal, termed costimulation. costimulation critical to the degree and consequence of t cell activation is provided by interaction between soluble factors or cell - surface molecules on the t cell and on the apc

    而t細胞的活化除需要t細胞受體( tcr )與抗原呈遞細胞( antigenpresentingcell , apc )表面的抗原肽- mhc復合物結合所形成的第一信號外,還需要t細胞和apc表面的其它膜分子結合所提供的共刺激信號(亦稱第二信號或輔助刺激信號, costimulatorysignal )的參與。
  18. A signal processing method comprises receiving a first signal for wireless communication, obtaining an approximate of a non - channel function in the first signal, separating the approximate of the non - channel function from the first signal to obtain a second signal that includes a time - varying channel function, and processing the second signal to obtain a user signal

    本發明提供一個信號處理方法,包括接收第一個無線信號;估計第一個信號中的脈沖成形失真;從第一個信號中分離出該脈沖成形失真以獲得第二個信號;以及處理第二個信號以獲得一個用戶信號。
  19. The lna is one of the most important and broad components in microwave communication system receiver, and is used to amplify the low level signal. as the first signal processing block after the antenna, the lna determines the noise figure and input voltage swr and greatly impacts the dynamic range

    低噪聲放大器( lna )廣泛應用於微波接收系統中,是重要器件之一,主要用來放大低電平信號,由於是自天線下來第一個進行信號處理的器件, lna決定了整個系統的噪聲性能和電壓駐波比vswr ,並對動態范圍有著較大的影響。
  20. Two tropical cyclones affected hong kong and the first signal of the year was hoisted on august 9, the latest date for hoisting this signal in post - war years

    年內首個熱帶氣旋警告信號於八月九日懸掛,是香港自戰后以來最遲懸掛熱帶氣旋警告信號的一年。
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