檢波效率 的英文怎麼說

中文拼音 [jiǎnbōxiàolǜ]
檢波效率 英文
detection efficiency
  • 檢 : Ⅰ動詞1 （查） check up; inspect; examine 2 （約束; 檢點） restrain oneself; be careful in one s c...
  • 波 : Ⅰ名詞1 （波浪） wave 2 [物理學] （振動傳播的過程） wave 3 （意外變化） an unexpected turn of even...
  • 效 : Ⅰ名詞（效果; 功用） effect; efficiency; result Ⅱ動詞1 （仿效） imitate; follow the example of 2 ...
  • 率 : 率名詞（比值） rate; ratio; proportion
  • 效率 : productiveness; efficiency; productivity; workpiece ratio
  1. On the demand of application and according to the soluhons menhoned above, a method of displacement waiting auto - sy ' nchronizing is put forward, which is based on match filters. at the end a complete and speeflc set of hardware circuits and software programs which haplements the scheme, is also presented in the ancle. the synchronization system was tested in the pool and in the shallow wate near m port, the result of the test shows that its performance is satisfactory

    論文著重介紹實現了跳頻通信系統同步的一般方法，並詳細分析和對比跳頻同步系統的捕獲方案，在此基礎上，提出了一個基於匹配濾波器的位移等待式自同步方案，設計、完成並給出了詳細硬體連線電路圖、軟體程序流程圖和部分程序清單，該自同步方法在實驗室水池實驗取得良好的效果，並在廈門港海域進行了現場實驗測試，具有較低的誤碼率和一定的檢測概率，結果令人滿意。
  2. The conclusion is : multiobjective programming and fuzzy programming are superior to the traditional markowitz model, compart : s the dynamic models with the static models, the former can reponse more soon to the wave of the stock price, so we can adjust period by period based on the dynamic models

    本文得出的結論是：多目標規劃及模糊規劃等方法優于傳統的馬柯維茨模型，在實證檢驗中表現出更高的投資效率，動態的模型與靜態的模型相比，能更快地對股價波動作出反應，可進行逐期調整。
  3. The initial vsd process uses two main characters, the average instantaneous energy and the average instantaneous zero crossing rate ( zcr ). to make the first recognition for the start and the end, the emphasis of which is to select the appropriate value of the threshold and the length of frame. in the final vsd process, the author compares several characters and confirms the new recognition character

    初步分段過程使用了能量和過零率這兩個主要特徵進行端點檢測，重點是合理選擇兩個重要參數? ?門限和統計幀長度的取值；在最終分段過程中，筆者首先通過比較幾種特徵的識別效果，選擇卡爾曼濾波參數作為再次分段的識別特徵，還提出了一種新的識別特徵? ?周期性緩變特徵，使用這兩個特徵分別在子語音段內進行端點檢測。
  4. In this article, considering the character of the one - dimensioned continuum and the cross - section, the varied quotiety of the strain can be presented as the mode function to identify the damage. and inversion of the elastic wave is presented to detect the injures when the area is the variable of the inversion, for the pip usually buried under the earth or enwrapped into the protection make the detection difficulty by the mode of vibrancy. the influence of the area must be considered if the exactness is the pre - requisition

    在論文中，考慮到壓力管道的一維性質，提出用應變模態改變變化率的方法對一維的結構進行損傷識別；同時考慮到在實際的工程和現場測試中，壓力管道大多深埋在地下或者有外在的保護膜，不宜進行模態的檢測，所以也考慮利用彈性波的方法對壓力管道的性質參數和截面性質進行反演識別，從而得到我們感興趣的東西，達到損傷識別；一般，在利用彈性波反射方法進行損傷檢測中，不考慮截面效應對彈性波的衰減影響，這就對損傷檢測造成一定的影響，本文考慮截面效應的影響，通過實驗來確定截面效應系數。
  5. By taking the miniature ceramic rod which is easily to machine high accuracy as sensitive structure, and by printing and polarizing six belt - shaped electrodes above it to constitute three pairs of electrodes, this paper designed package and the phase - sensitive detection circuit in the system so that it effectively reduced the sensitive structure size and improved its processing precision to realize the angular rate gyro microminiaturization

    首先採用易於加工成高精度的微型陶瓷棒作為敏感體，在其上印刷成六個帶狀電極並予以極化構成三副電極對，然後設計了封裝及相敏檢波電路，從而有效地減小了敏感結構的尺寸，提高了其加工精度，實現了角速率陀螺微型化。
  6. Chapter 4 designs and determines the parameters of the algorithm adopted in the instrument system. analyzes and compares the different effects to frequency estimation when using digital filters with different group delay ; determines the data length, a parameter of frequency estimation ; introduces the method of available judgment of sensing signal and determines the judgment threshold as well

    第四章設計和確定了儀器系統軟體演算法的部分參數：分析和比較了不同群延遲特性的數字濾波器對頻率估計的影響；確定了影響頻率估計參數?數據長度的取值規律；給出了判斷傳感信號有效性的檢測方法並確定了檢測門限的取值規律。
  7. Z - tranformation augmented fasf algorithm proposed in the dissertation can reduce the search space of integer ambiguity effectively, improve the effiency and real - time processing ability of integer ambiguity resolution ; it is essential to analyse the reliability of integer ambiguity after it was fixed, the ratio test algorithm proposed in the dissertation can reduce the time to fix new integer ambiguity after wrong fixes are detected ; to reduce further the number of epochs required for ambiguity resolution, that the baseline length constraint information which acts as observables is used to do kalman filtering to speed up ambiguity resolution is proposed

    本文提出的z變換增強fasf演算法能有效的減小模糊值搜索空間，提高整周模糊值解算的速度和實時性；整周模糊值確定后，需要對整周模糊值的可靠性進行分析，本文提出的比率檢測演算法能有效的減少整周模糊值錯誤確定后整周模糊值二次解算所需要的時間；為了進一步減少整周模糊值解算所需的歷元數目，本文提出把基線長度先驗信息作為觀測量進行卡爾曼濾波輔助整周模糊值求解。
  8. The studying results show that the advanced spectral estimation is more predominant than dft algorithm and its corrected algorithms in the field of inter - harmonics measuring, especially for the inter - harmonics which is too close to harmonics. hence, it is effective and feasible to introduce the advanced spectral estimation into inter - harmonics measuring

    上述研究證明，在間諧波檢測領域，特別是對離諧波頻率較近的間諧波檢測中，現代譜估計理論有著許多dft演算法及其校正演算法不可比擬的優勢，將其引入電力系統間諧波檢測中是有效可行的。
  9. It can acquire the voltage on the test appliance and current in the circuit. and it can see these electrical signals as its input and calculates based on the data and gives the parameters and waveform that user needed. the parameters we can get through calculation include power factor, joule ' s integral, available value, maximal value, minimum value, time constant etc. recently, there are many scholar is studying the algorithm that calculate the parameter using test data, but many of them adopt the heuristic method, not using the test data directly

    本課題研製一套電器試驗參數高速採集系統，能夠檢測試驗迴路中試品上的電壓信號和迴路中的電流信號，並根據這些電信號的數值利用計算機進行在線計算，並給出用戶需要的各種電參數值和用戶需要的波形圖，通過計算得到的電器參數有功率因數、焦耳積分、有效值、最大最小值、時間常數等。
  10. The roughness of wyko and afm measuring are 0. 73nm and 0. 56nm in rms value respectively, in both primary and secondary mirrors, and will severity reduce the schwarzschlid optics throughput and the contrast of the image

    73urn ） sm ， wyko檢測結果）波紋度和高頻段的0 56urn （ ms ， afm撿測結果將嚴重影響schwarzschild微縮投影物鏡的成像對比度和傳輸效率。
  11. At the present time the prediction method of attracting pest with black light and recognizing and counting by man is generally adopted. there are some serious shortages such as bad recognition accuracy and low efficiency. it reduces seriously accuracy and timeliness of prediction and is disadvantage in guiding insect disease prevention

    目前普遍採用的黑光燈誘集害蟲、人工識別計數的測報方法，存在識別準確性差、效率低等嚴重缺陷，極大地降低了測報的準確度和時效性，不利於指導農田害蟲的防治工作，因此本文提出了基於機器視覺和小波分析的圖像識別技術，用於農田害蟲的自動檢測預報。
  12. This paper simulates the effect of voltage fluctuation inspection through the tool of matlab. and proves the filters ' s stability. in the part of self - checkout, pi ( proportional integral ) control arithmetic is put forward to check the gain k and the calculated results show the method ' s effectiveness. then many comparements toward pst are done in different realization methods such as different interpolation points classification number and sample frequency. though simulation and calculation we can see the designed flicermeter can meet our country ' s standands

    文中利用matlab對電壓波動的檢測效果進行了模擬；並對涉及到的濾波器的穩定性做了證明；在自校驗部分提出了將pi （比例、積分）演算法用於數字濾波器增益k值的確定，取得了不錯的效果；然後分別從取不同插值點、不同分級數和不同采樣頻率這幾個方面出發，對計算出的p _ （ st ）值進行了比較。
  13. Making use of the time series exhibitions of the fluctuation - rate datum, we make our study for the following two purposes : one is to observe whether the preannouncing companies " temporal - condition variance of the series of the return rate conforms to the demand of sta bility ; the other is to decide whether the preannouncing companies " stocks have asymmetrical - information adjustment, this is to say, to decide how the companies response to good or bad news

    為了進一步檢驗盈餘預告新規則實施效果，我們考慮從波動性入手對股票市場的穩定性進行系統分析。我們嘗試利用波動率數值的時間序列表現進行研究，力圖了解：預告公司股票日收益率序列的時變條件方差是否滿足穩定性要求。預告公司股票是否存在信息非對稱性調整現象，即對利好利空消息分別做出何種反應。
  14. From theoretical analysis, we know the existing demodulation methods have limitations as following : one is that the subtraction of the two signals frequencies will display as the result of demodulation when we demodulate two time - domain adding signals without modulating information ( fault information ) ; the other one is that aliasing phenomenon will occur as a result of getting absolute value, detection or square in the process of generalized demodulation analysis, such phenomenon will result in some superfluous frequency composition on the frequency spectrum, which will puzzle the detec tion of mechanical vibration. if the sampling frequency is selected from a suitable range, the aliasing phenomenon will be avoided ; the last one is that aliasing frequencies will be produced in zoom demodulation analysis because this algorithm cannot employ digital low - pass filtering to avert the folding frequencies of higher harmonics in the process of zoom sub - sampling

    現有的解調分析方法存在以下三種局限性：將不包括調制信息（故障信息）的兩時域相加信號，也以其頻率之差作為解調信號而解出；廣義檢波濾波解調分析中，由於取絕對值、檢波或平方過程可能產生混頻效應，在解調譜中表現為無法分析的頻率成分，並由此推導出避免這種混頻現象的采樣頻率的選取范圍，從根本上避免此類誤診斷的產生；幾種細化解調分析新演算法中，因為無法在細化分析的選抽時進行數字低通濾波，有可能會出現調制頻率的高次諧波成分發生頻率混疊而反折到低頻部分的現象。
  15. Contrast to such original place test method as static load method and drilling method, the method that applying transient rayleigh surface wave to inspect the compound foundation own many virtues as low cost, high efficiency, non - destruction, and it also can save much labour and effort. furthermore, it can implement the large - wide and comprehensive inspection and evaluation of compound foundation bearing capacity

    與靜載試驗、鉆孔法等原位測試方法相比，瞬態瑞雷波檢測復合地基技術具有成本顯著降低、效率高、無破損等特點，可節省大量的人力物力，從而可以實現復合地基承載力大范圍、全面的檢測和評價，打破以往只能局部抽檢的局面。
  16. It gives assistance to improve efficiency of the multiple frames accumulation. by analyzing the merits and demerits of several kinds of preprocessing, such as highpass filtering, median filtering, tophat transformation in mathematical morphology and wiener filtering, the local singularity filtering based on improved susan principle has been given, and it has a high power to raise the probability of target detection in single frame

    良好的預處理將提高后續的多幀積累的效率，對比常用的幾種預處理演算法，如高通濾波、中值濾波、數學形態學的tophat濾波、維納濾波等方法的優點和不足，提出了一種改進的susan濾波器? ?區域奇異性濾波，該濾波方法對于提高單幀檢測概率有很好的功效。
  17. This paper utilizes masking rate theory to analyze the variation of center zero - level energy, the influence of metallic mesh ’ s different parameters on infrared transmitting ; deduces the relational expression between infrared transmitting efficiency and metallic mesh ’ s parameters ; comes to the conclusion that we can improve infrared transmitting efficiency by increasing

    理論研究表明，金屬網柵的周期選擇在200 ~ 400 m之間，線寬不大於10 m ，是較為理想的網柵參數。最後，在實驗室里用1 ~ 20ghz的信號發生器、功率放大器和頻譜分析儀等雷達波檢測設備，對金屬網柵的屏蔽效率進行測試。
  18. Presented in this paper is the investigation of some problems existing in the far - field method widely used in hpm measurement. first, the errors are analyzed from the practical calculation of the directivity for the radiation of the te11 mode in the circular waveguide. secondly, the results obtained from simulation and experiments are compared with each other on the effective area of the receiving antenna of certain types, and the power capacity are calculated for these antenna

    首先，對圓波導te11主模輻射方向性系數實際計算中存在的誤差進行了分析;其次，對一些型號的接收喇叭有效面積進行了模擬和實測對比，並通過計算給出了這些型號的接收喇叭的功率容量;最後，實驗測定了微波脈寬對一些微波器件? ?同軸型檢波器、同軸型衰減器及微波電纜性能的影響。
  19. The surface - wave theory was firstly provided by rayleigh, which can be used in even medium and many other learners developed rayleigh ' s theory and provided another theory which can be used in layered medium

    瞬態面波法的理論基礎是英國學者瑞利提出的半無限彈性均勻介質中的瑞利面波理論及其後來發展起來的半無限彈性層狀介質中的頻散理論，因其具有同時可以大范圍檢測，精度好、效率高等優點，在無損檢測方面有很好的前景。
  20. This paper proposed an image retrieval method based on wavelet - compress and feedback which can improve the performance of a content - based image retrieval system

    摘要為提高圖像檢索系統的準確率和有效率，本文提出一種基於小波壓縮和用戶反饋的圖像檢索方案。
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