shortage in measurement 中文意思是什麼

shortage in measurement 解釋
缺尺
  • shortage : n 不足，缺少；不足額；〈美國〉缺點，缺陷。 owing to shortage of staff 由於人員的缺少。 a shortage...
  • in : adv 1 朝里，向內，在內。 A coat with a furry side in有皮裡子的外衣。 Come in please 請進來。 The ...
  • measurement : n. 1. 測量，計量，量度。2. 份量，尺寸，大小，寬度，厚度，深度（等）。3. 測量法。 measurement goods （按體積、容積計算的）體積貨物。
  1. 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。
  2. Namely, on the one hand, to evaluate the past, providing measurement criterion for road transportation development, knowing about the fact adaptability, in order to acquire experience, hunt for shortage and keep developing on and on ; on the other hand, to dominate the future, pr oviding fundamental rationale for drawing up road transportation develop planning

    以期一方面評價過去，為道路運輸發展評價提供衡量標準，了解實際運作中達到的適應程度，從而吸取經驗、尋找差距、不斷發展；另一方面控制未來，為道路運輸發展規劃的制定提供基礎性依據。
  3. The paper starts with the necessity and imminence of the research on accounting problems in waterway fixed assets, and analyzes the characteristic of the fixed assets in waterway transportation and the reason for shortage of the research, then brings forward the research purpose of the paper, which is to resolve the accounting problems on recognition, measurement, repairs and maintenance, depreciation of the waterway fixed assets, to provide a direction of the following research

    本文從水運固定資產會計問題研究的必要性、迫切性入手，對水運固定資產的特性以及以往研究的不足之處加以分析，進而提出本文的研究目的，即解決固定資產確認、計價、修理、折舊計提中的一些會計問題，為下文的研究提供一個方向性的指導。
  4. The measurement of deflection of a bridge is crucial constituent part in the monitoring of bridges. the majority of existing methods about bridge deflection measurement can not accomplish the real - time and long - range measurement. the ultrasonic method based on connected pipes still has shortage in precision and speed of measurement. to satify the need of deflection measurement of the dafosi bridge of changjiang river, an opto - electronic measurement method is to be used to improve on the method based on connected pipes. furthermore, we will design an automatic opto - electronic deflection measurement system based on connected pipes which can be practised in the long - span bridge

    大型橋梁的安全監測具有重要的現實意義，而撓度監測是橋梁監測的一個重要的組成部分。目前現有的許多撓度測量方法還不能實現實時遠程監測，已有的連通管式超聲波法還存在著精度較低，測速慢等不足。針對大佛寺長江大橋撓度測量的需要，在此採用精度較高的光電測量方法結合連通管的優點加以改進。
  5. The traditional signal processing methods that amplify, filter, rectify signal and count, which are used in vortex flowmeter now, has shortage in extracting real flow signal from noise. the methods that restrict measurement range or do n ' t measure small flow have to be adopted

    目前渦街流量計所採用的放大、濾波、整形、計數的處理方式，在從噪聲中提取流量信號方面存在較大的局限性，只能採用限制量程比、不測小流量等方法來抑制噪聲。
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