峰值信號 的英文怎麼說

中文拼音 [fēngzhíxìnháo]
峰值信號 英文
peak signal
  • 峰 : Ⅰ名詞1. （山的突出的尖頂） peak; summit 2. （形狀像山峰的事物） peak-like thing Ⅱ量詞（用於駱駝）
  • 號 : 號Ⅰ名1 （名稱） name 2 （別號; 字） assumed name; alternative name3 （商店） business house 4 （...
  1. According to the research of physiological and biochemical indicators or index, components of soluble proteins, substrate protein of phosphorylation and the activity of protein kinase in low - temperature stress in the leaves of brassica oleracea l., we tried to find the law of the physiological and biochemical response of brassica oleracea l. leaf to low temperature. at the same time, discussion on the signal transduction can also provide further evidences for revealing the mechanism of low - temperature stress. the results are showed as follows : malondialdehyde ( mda ), superoxide dismutase ( sod ), ascorbate peroxidase ( asp ) and peroxidase ( pod ) activities were changed greatly after 0 ~ 30min ' s treating with low temperature

    本文以甘藍葉片為材料，通過對低溫5脅迫下甘藍生理生化指標、可溶性蛋白組分以及磷酸化底物蛋白、蛋白激酶活性的研究，以期找出甘藍葉片對低溫脅迫的生理生化響應規律，為甘藍露地越冬栽培防範寒害提供理論指導，同時對低溫脅迫下甘藍逆境信號傳導進行了探討，從而為徹底弄清低溫脅迫機理提供進一步的證據，研究的主要結果如下：丙二醛含量（ mda ） 、超氧化物歧化酶（ sod ） 、抗壞血酸過氧化物酶（ asp ）和過氧化物酶（ pod ）活性在低溫處理0 30min發生顯著變化，低溫處理3min后，甘藍葉片內mda含量基本沒有變化，處理5min時出現第一個峰值，達到對照的104 . 10 ， 10min出現低谷，僅為對照的86 . 27 ，隨后再次上升， 30min時超過第一峰值，為對照的113 . 93 。
  2. By using the processing method of sliding time window, the problem of the periodicity range ambiguity is solved. meanwhile, the problem of range ambiguity which is produced because the range of target is biger than the maximum range of radar is also solved by using this method. then, the pulse width parameter which is the most important in the parameters of fmicw is analyzed. the stricter restrict is given to ensure the range spectrum has only one beat frequency after signal processing. at last this thesis introduces the different signal processing methods of fmpcw and fmicw

    同時利用該方法解決了fmpcw信號的由於目標距離超過雷達的最大單值測距范圍而引起的距離模糊問題。然後對fmicw波形參數中最為重要的脈沖寬度進行了分析，給出了更為嚴格的約束條件，保證了信號處理后距離譜峰值的唯一性。最後，分別介紹了fmpcw和fmicw信號的不同處理方式，並對兩者不同的時域濾波性能進行了比較，並對二者的差異進行了分析。
  3. Due to existing signal processing technology ’ s shortage such aslow measurement, narrow measurement range precision and other poor performance, we introduced a high - precise signal processing technology : firstly, to get power spectrum with hanning windowed welch modified periodogram, search its peak value frequency ; secondly, to apply zooming analysis via goertzel algorithm ; at last, to get a highly precise doppler frequency with energy centrobaric rectifying algorithm 。 the simulating result indicated that this technology introduced could get accurate doppler frequency 。 depending on above discussed technology, we designed a signal processing scheme, and developed a signal processing system. the running result showed high performance, verified the feasibility and reliability of the highly precise signal processing technology introduced. in a word, the technology improved ldv ’ s performance such as measurement precision, measurement range, dynamic response time 。 and it will have a wide application foreground

    針對存在的缺點，本文提出了一種應用於激光多普勒測速的高精度信號處理技術，即首先利用加hanning窗的welch修正周期圖演算法得到信號功率譜，搜索其譜峰值頻率，接著利用goertzel頻譜細化演算法對搜索的譜峰進行細化分析，再引入能量重心頻譜校正演算法對細化后的譜峰進行校正分析，從而將離散頻譜分析演算法、頻譜細化演算法和頻譜校正演算法三者有機結合起來，充分發揮各自的優點:通過加hanning窗的welch修正周期圖演算法快速得到功率譜及峰值頻率，通過goertzel演算法獲得分析頻帶的高解析度頻譜，然後通過能量重心校正演算法對細化后的頻譜進行高精度校正，這樣不僅保證了演算法的高效性，而且大大提高了分析的精度。
  4. From the simulation results, we can see that, for the presented cmos preamplifier - latch comparator, its transfer delay time is 231ps, and the power dissipation is 118. 6 w

    時，其回饋噪聲對輸入信號和電阻串參考電壓產生的毛刺峰值分別是6 . 35mv ， 1 . 57mv ;各級子adc的總功耗為5 . 57mw 。
  5. The measuring device cooperating with displacement sensors and prepositive device can monitor vibration signals including peek - peek value and average value etc. besides, it can auto - detect the distance that the sensor installed with and alarm if the interval exceeds the alarm value

    該測量儀與位移傳感器及前置器配合使用，能夠在線監測包括振動峰峰值和平均值等振動信號量，同時測量儀可以自動檢測傳感器安裝距離，在危險的情況下可以根據事先設定好的報警值進行報警。
  6. 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。
  7. In hardware, we choose anti - disturbance photoelectric isolative sensor, take rc filter to resolve high - frequency for anti - disturbance. in software, we adopt arithmetic of recursion mean value to collective signal values to resolve low - frequency ac and pinnacle pulse disturbance

    在硬體方面，選用抗干擾能力強的光電隔離電量傳感器，並採取rc濾波抗干擾措施解決中高頻干擾問題；在軟體方面，對採集到的信號量採取遞推平均值演算法，解決低頻交流和尖峰脈沖干擾問題。
  8. Peaking in the frequency spectrum due to repetition of signals by multiple reflection is not confined to water layers.

    多次反射波引起的信號重復在頻譜中造成的峰值增多，並不僅僅局限於水層。
  9. The method and implementation of measuring the peak of bioelectrical signals

    生物電信號峰值測量方法與實現
  10. On the basis of relationship of the peak phases of the genes rhythms in different light regimes, it can be concluded that : ( 1 ) circadian expression of the clock gene varied with the appearence of light, namely the light signal, but not the light regime

    通過比較中樞與外周、全黑暗與不同光照-黑暗交替制中基因表達的峰值相位，發現： clock的晝夜節律性表達特徵與光照是否存在（即光信號）相關，但不受ld光制影響。
  11. So the likelihood function of the differential phase peaks can be formed as means to identify m - ary psk

    於是可利用相位突變峰值的似然函數來識別信號為哪一種進制的psk信號。
  12. Based on the detection principle of pyroelectric sensing elements, this paper presents a symmetrical peak detection method of continuous double plus - minus pulse signals to eliminate external interference in fixed position heat source

    根據熱釋電敏感元件的探測原理，本文提出一種對正負脈沖信號和連續正負脈沖信號進行對稱峰值檢測的方法。
  13. It can automatically match rotational speed generator, electromagnetic rotational speed sensor and electromagnetic turbine flowmeter. moreover it can adapted measured signal that is 1v ~ 300v voltage and 1hz ~ 2500hz frequency

    能自動匹配測速發電機、電磁式測速傳感器和電磁渦輪流量計，適應電壓峰峰值從1伏以下至300多伏、頻率從1hz以下至2500hz以上的被測信號。
  14. The paper has introduced a new means on the automatic focus that take advantage of the video peak to change the position of the focusing lens to achieve a clear picture

    摘要介紹了一種新型的自動調焦的方法，它利用電視跟蹤系統視頻信號的峰值變化控制調焦鏡組，來調整由於目標距離、溫度等變化引起的成像焦面變化，得到清晰圖像，完成電視自動調焦。
  15. Firstly, introduce the design of sonar display, trace - to - trace correlation and gray scale display, develop a new method of gray scale based on signal noise ratio. and next, discuss array signal processing and image processing in order to improve the display. finally, develop a software of sonar display simulator based on object oriented programming, with which the sonar display console is simulated and the performance of sonar signal is tested

    本文工作圍繞如何提高聲納顯示效果，介紹了聲納顯示屏幕的設計方案，論述了「跡跡相關」技術、灰度顯示技術在聲納顯示中的應用，提出了基於信噪比的灰度級別劃分方法；結合陣列信號處理、圖象處理技術，本文引入了子帶峰值能量檢測演算法、圖象邊緣檢測演算法，進一步提高了聲納檢測性能；基於面向對象的程序設計方法，設計了聲納顯示平臺軟體，為模擬聲納顯示、檢驗聲納信號顯示性能提供了模擬環境。
  16. The pulse width trigger circuit, trigger delay circuit are discussed. and a new kind of peak detection module which is implemented by verilog hdl in fpga and greatly enhances the performance of catching glitch is discussed in the dissertation. the waveform recorder function accomplished in the scopemeter can test, monitor slow analog signals and record the characteristic value of signals continuously for a long time

    本文討論了脈寬觸發電路和觸發釋抑電路的實現，採用veriloghdl在fpga中實現了一種峰值檢測模塊，提高了示波表的毛刺捕捉能力，設計的波形記錄（ recorder ）功能模塊能夠對輸入的模擬信號進行長時間連續不斷的采樣量化，並記錄波形數據和及時送顯示。
  17. At the beginning of this thesis, the principle of fiber fabry - perot strain sensor is presented briefly, and the influence on the results of the peak - to - peak algorithm, brought by the spectrum distribution of light source, wavelength quantification or the noise in the output of the fabry - perot sensor is investigated. the limitation of the peak - to - peak algorithm is pointed out

    論文首先闡述了光纖法珀應變傳感器的測量原理，分析了實際光源光譜的非均勻分佈、波長量化和傳感器輸出信號中的噪聲等對波長域的條紋峰值解調演算法的應變測量結果的影響，深入分析了條紋峰值解調演算法的局限性。
  18. Our item choiced msp430f149, a sort of singlechip as controller, designed our hardware electrocircuit to get the pulse wave singnal, and used msp430f149 to continuously search and calculate the peak - peak value of the pulse wave, and compute oxygen saturaction. in our study, in order to hurdle the dirft of baseline caused by the physiological difference of human bodies. we designed one circuit which can automatically regulate of the baseline of signal

    本文以msp430f149晶元為控制器，設計硬體電路提取脈搏波信號，連續檢測脈搏波峰?峰值，計算氧飽合度。本課題採用了基線自動調節電路，以克服不同人體生理差異引起的基線漂移；設計了直流截取電路和可控積分放大電路，以滿足臨床連續監測的特殊需要，解決信號飽和問題。
  19. 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。
  20. The pulse - peek sampling and adc module is able to catch a single and very narrow pulse in order to sample its peek value without being influenced by other pulses or noise. the pulse - peek sampling and adc module can also adapt itself to different rising edge of pulses, so it can scale different types of explorers made by our research institute

    X射線探測器定標分析系統的前端脈沖峰值採集及其轉換電路能夠實現單個快速脈沖的捕捉及對不同脈沖上升沿陡緩的適應，它對不同傳感器的放大信號特徵都有很好的適應性，對脈沖峰值采樣的結果具有很高的精度。
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