frequency region造句
例句與造句
- The rcs of targets coated with radar absorbing material ( ram ) in the high - frequency region have been further computed
接著，進(jìn)一步對(duì)涂覆雷達(dá)吸波材料的復(fù)雜目標(biāo)進(jìn)行了rcs計(jì)算。 - Dynamic and acoustic characteristics high frequency region for sandwich cylindrical cavity embedded with er fluid : experimental study
電流變夾層圓柱腔體的高頻聲振響應(yīng)特性的實(shí)驗(yàn)研究 - On the other hand , the phase will show a 2 n jumping not only in low frequency region but also in resonant , region
同時(shí)發(fā)現(xiàn)相位測(cè)量除了在低頻區(qū)會(huì)發(fā)生2 。跳變外，在共振區(qū)也可能發(fā)生2 。 - It multiplies a gene with liner phase relating to the number of pulse by the frequency region reference function of range compression
其方法是在距離脈沖壓縮的頻域參考函數(shù)上乘一個(gè)與脈沖數(shù)有關(guān)的線(xiàn)性相位因子。 - The method adopted in this paper could analyze rcs of complex radar targets in the high - frequency region rapidly and efficiently in practical application
實(shí)例證明了greco方法在高頻區(qū)實(shí)時(shí)求解復(fù)雜目標(biāo)的rcs的快速性和有效性。 - It's difficult to find frequency region in a sentence. 用frequency region造句挺難的
- Finally , we regroup the selected time - frequency regions and get the resynthesized speech . the results obtained indicate that the approach described here is efficient
最后將屬于同一聲源的小片段組合起來(lái)，就可以得到分離后的語(yǔ)音。 - On the basis of the equivalent circuit diagram the solid - solid and the composite - electrolyte interfaces , contributed their impedance in the relatively high and low frequency regions
第三部分是探討不同粒徑大小氧化釕奈米微粒復(fù)合電極在不同電位下之阻抗頻譜的變化，進(jìn)而由等效電路圖來(lái)解釋其涵蓋的物理意義。 - To choose wavelet function based on time - frequency region is put forward , time - frequency region composing of all of these wavelet functions can overlay wholly time - frequency region of non - linear function to approximate
本文提出了根據(jù)逼近函數(shù)的時(shí)頻空間區(qū)域來(lái)選擇小波基函數(shù)，使這些小波基函數(shù)共同構(gòu)成的時(shí)頻空間區(qū)域覆蓋完逼近函數(shù)的時(shí)頻空間區(qū)域。 - Wavelet - transform has the special ability to express the signal portion characters in time region and frequency region simultaneously . and the theories of signal decompose , character summarize and signal de - noise based on wavelet - transform have put into engineering region successfully
小波變換在時(shí)域和頻域同時(shí)具有良好的表征信號(hào)局部特征的能力，基于小波理論的信號(hào)分解，特征提取，消噪等技術(shù)成熟。 - Firstly , the voltage sample signals from ac exciter stator coil were de - noised and filtered by means of decomposition of the wavelet function . secondly , the character frequency region of the rotating rectifier fault was selected clearly with wavelet package decomposition and reconstruction
先對(duì)交流勵(lì)磁機(jī)定子磁極線(xiàn)圈電壓采樣信號(hào)進(jìn)行消噪濾波，再通過(guò)小波包分解和重構(gòu)進(jìn)行特征頻率提取，建立了表征旋轉(zhuǎn)整流器故障的特征向量。 - Wavelet theory has the special ability to express the signal local characters in the time and frequency region . in this paper , the signals of rotating rectifier normal or fault conditions have been analyzed by wavelet transform , and the eigenvector , which includes useful information , has been obtained
小波理論在時(shí)域和頻域同時(shí)具有良好的表征信號(hào)局部特征的能力，本文采用小波變換來(lái)對(duì)各種故障情況下的信號(hào)進(jìn)行分析，提取含有豐富的故障信息作為特征向量。 - At present greco is regarded as one of the most valuable methods of radar cross section ( rcs ) computation in the high - frequency region . depending on these conditions , several researches have been completed in this paper : firstly , calculating rcs of complex conducting targets has been accomplished by greco method . the high - frequency rcs of targets are obtained through physical optics ( po ) and incremental length diffraction coefficients ( ildc ) respectively
本論文做了以下研究工作：首先，實(shí)現(xiàn)了運(yùn)用greco方法計(jì)算了高頻區(qū)理想導(dǎo)體復(fù)雜目標(biāo)的雷達(dá)散射截面( rcs ) ，分別應(yīng)用了物理光學(xué)法( po )和增量長(zhǎng)度繞射系數(shù)法( ildc )計(jì)算了目標(biāo)的面元和棱邊的電磁散射，最后綜合面元與棱邊的散射效應(yīng)得到目標(biāo)的總rcs 。 - Image edge detection based on multiresolution wavelet transform makes up these shortages before . wavelet theory has good local inspect ability in time region and frequency region , and the character multiresolution . these are theory basis that wavelet transform is applied to cell image edge detection
小波變換是80年代后期發(fā)展起來(lái)的一種變換域信號(hào)處理方法，具有時(shí)域和頻域上良好的局部檢測(cè)能力和多分辨率分析的特點(diǎn)，從而被譽(yù)為“數(shù)學(xué)顯微鏡” ，這是我們將小波變換應(yīng)用于細(xì)胞圖像邊緣檢測(cè)的理論依據(jù)。 - The states of the art of dvd protection are described , and two protocol ( cprm and dtcp ) , which is proposed by w09 group , are introduced . a novel fragile watermarking approach and related tamper detection are proposed . taking still image as an example , the watermark are embedded in the discrete wavelet domain of an image , so tamper detection is possible in localized spatial and frequency regions
第7章探討了水印算法設(shè)計(jì)與水印應(yīng)用系統(tǒng)設(shè)計(jì)間的區(qū)別，指出水印系統(tǒng)的實(shí)用性不僅僅取決于技術(shù)上的完善，同時(shí)也需要具有完備的協(xié)議；提出了一種二維偽隨機(jī)序列的產(chǎn)生方法；討論了影響水印系統(tǒng)性能的主要因素及解決方法；舉例說(shuō)明了完整水印系統(tǒng)的設(shè)計(jì)過(guò)程并嘗試提出了一種完整水印系統(tǒng)協(xié)議。 - The research on the rf characteristics of the conductor - centered helical groove sws . ( a ) in the " cold " system , we found that the changing of depth of the groove has no distinct effects on the phase velocity at the lower frequency region ; but with the increasing of the frequency , the phase velocity and bandwidth are reduced slightly , the structure is more dispersive and the coupling impedance is enhanced
對(duì)具有中心導(dǎo)體軸的矩形螺旋槽慢波系統(tǒng)的高頻特性進(jìn)行了理論研究： ( 1 )在冷系統(tǒng)中的研究結(jié)果表明：頻率較低時(shí)，槽深的改變對(duì)相速的影響不是很大，隨著頻率的增大相速略有減小，同時(shí)帶寬也有所減小，色散變得稍強(qiáng)，耦合阻抗增大。
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