校正窗 的英文怎麼說
中文拼音 [jiàozhēngchuāng]
校正窗
英文
correction window-
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。After analysising three existed methods for phase difference correction on discrete spectrum, it is recommended to correct the spectrum containing small noise in engineer practice by the first phase difference correcting method ( performing fft analysis on two continuous original sequence ) with harming window
綜合分析現有三種離散頻譜相位差校正方法，推薦在小噪聲工程實際中加hanning窗的第一種相位差法（采連續兩段信號作相同點數fft的相位差校正法）進行校正。Study shows that the basic principles of three existed methods for phase difference correction on discrete spectrum are identical, by which the twice fft analysis through time - domain shifting time series or changing window ' s length is performed, and the spectrum by making use of the phase difference of two corresponding peak lines are finally corrected
在研究時域平移的離散頻譜相位差校正方法和改變窗長離散頻譜相位差校正方法的基礎上，發現這幾種離散頻譜相位差校正法的基本原理是一致的，就是通過時移和加不同的對稱窗進行兩次fft分析，並利用離散頻譜對應峰值譜線的相位差以求得頻率和相位校正量。The window of china creditcard is my second family, i feel very warm in this family. i ' ll support the window of china creditcard forever ! !
哎。這是考完中考之後，第一次正兒八經的寫文章了。下學期我就要讀高中了，要住校，可能也沒有這么多時間在卡窗上泡了啊。One afternoon i had then been three weeks at lowood, as i was sitting with a slate in my hand, puzzling over a sum in long division, my eyes, raised in abstraction to the window, caught sight of a figure just passing : i recognised almost instinctively that gaunt outline ; and when, two minutes after, all the school, teachers included, rose en masse, it was not necessary for me to look up in order to ascertain whose entrance they thus greeted
一天下午那時我到羅沃德已經三星期了，我手裡拿了塊寫字板坐著，正為長除法中的一個總數發窘，眼睛獃獃地望著窗外，看到有一個人影閃過。我幾乎本能地認出了這瘦瘦的輪廓。因此兩分鐘后，整個學校的人，包括教師在內都全體起立時，我沒有必要抬起頭來后過究竟，便知道他們在迎接誰進屋了。The improved algorithm has three steps : 1 ) estimating the statics ; 2 ) selecting the best coherent time window from the common - receiver - point stack profile for the coherent computation and calculating the statics ; 3 ) correcting the value of " statics " by the underground structures corresponding to the formation of the p waves
演算法可以分3步進行：估算靜校正量；在共接收點疊加剖面上選擇一個最優相千時窗進行相干運算，求取靜校正量；根據縱波對應層位的地下構造對相於結果進行校正。The simulation result shows that the synthesized method is easily implemented with high precision, which is also applicable for all kinds of symmetrical window function and having high ability of anti - noise
模擬結果表明，該方法實現方便，校正精度高，適合各種對稱窗函數，抗噪聲能力強。Consequently, a synthesized method is presented in this thesis, which includes time - domain shifting, window - length changing and window - type changing ( the second time - domain sequence lags behind the first one with l points, performing n - point fft analysis on the first sequence and m - point fft analysis on the second one with different windows, and finally correcting peak lines )
利用這一原理提出通用的離散頻譜相位差校正方法：時域平移+改變窗長+改變窗函數，即第二段時域序列比第一段滯后l點，採用不同窗函數對這兩段時域分別作n點和m點的fft分析。Manual verification of proper network operation after a maintenance window is equally prone to human error, and waiting for trouble tickets to highlight configuration errors is not good operating practice
。維護窗口之後正確網路運行的手動校驗傾向於人為錯誤，而等待加重配置誤差的故障標簽並不是好的運行實踐。Later on, after elaborating the disadvantages of the old methods in detecting and recognizing moving objects, a series of corresponding approaches are proposed, such as grid scan, local tracking bug and dynamic window in object tracing to reduce the huge data needed to be processed, maximum and minimum for selecting a proper segmentation threshold and improved conversion from rgb model to hsv and so on to decrease the influence of inhomogeneous lighting and the color noise, a bilinear interpolation in each quadrant to eliminate the bad effect on the recognition precise because of the distortions of the camera. after that, much emphasis is given on application study in pattern recognition with a feed - forward neural network. both the basic bp algorithm and improved bp algorithm in the study process are described in detail, and the later is used to quicken convergence speed and improve validity of the network
然後，分析和闡明了傳統的運動目標檢測方法的不足，並在此基礎上結合研究中的實際實驗環境，提出了一系列解決方法，包括針對降低龐大數據量而提出的網格掃描、局部「跟蟲」追蹤和動態窗口掃描等目標檢測方法，針對實驗環境中光照不均和顏色干擾提出基於人機交互的最大最小值閾值選取方法和引入改進的rgb模型到hsv模型的轉換方法，為消除圖像畸變對識別精度的惡劣影響而採用的通過控制點進行雙線性插值進行畸變校正的方法；緊接著，概述了神經網路的發展歷史和幾種常用神經網路模型的特點，重點研究了前饋型神經網路在模式識別中的應用問題，詳細闡述了基本的bp演算法和學習過程中bp演算法的改進，從而使網路收斂速度更快，解決問題更有效，並在此基礎上，設計了一個基於bp神經網路的運動目標識別系統，給出了實驗結果。Secondly, this paper details the basic theory of fourier transform, and the problems which must be paid attention to in the practical application. the reasons of the error caused by the traditional electric signal detection methods based on the windowed dft are thoroughly analyzed. besides, many cosine windows are introduced
其次對傅立葉變換的基本理論、基本形式以及實際應用中應注意的問題進行了詳細的闡述，對傳統的基於加窗dft的諧波檢測方法的誤差原因及減少誤差的方法進行了分析，並介紹了各種不同的餘弦窗函數，進而簡要分析了幾種常見的頻譜校正方法。Assemble the dual lock fastener in alignment with 2. install the tailgate window glass in the same way the protrusion of the tailgate flange
與2校正成一直線后安裝上雙鎖扣;用同樣方法對正後擋板凸緣后安裝后擋板窗玻璃分享友人