An adaptive notch filter is presented to analyze integral and fractional harmonics of variable fundamental frequency.

摘要采用自適應(yīng)陷波濾波器實(shí)現(xiàn)基波頻率可變的多諧波(包含整數(shù)次諧波和非整數(shù)次間諧波)分析欧美a在线播。

For example, to take a guess at tall odd order harmonics, draw an imaginary curve from the fundamental to the F3 and F5, and it's almost guaranteed that the F7 and F9 are going to fall close to where that curve extends.

例如，要采取高奇次諧波猜測(cè)18禁无遮挡A片在线网站，借助根本性的F3和F5一個(gè)假想的曲線欧美A∨免费网站，這幾乎保證了F7和F9鍵將要下降接近如該曲線延伸。

When up to 31th harmonics are analyzed, the calculation time is only 1/82 of theat by the classical Gaussian elimination method.

對(duì)于一個(gè)周期值事先不知道樱桃视频ios视频看片，在一個(gè)周期內(nèi)有100個(gè)采樣點(diǎn)的非整周期采樣欧洲熟妇色XXXX欧美老妇继续搜索搜索，這個(gè)近似方法可使諧波分析的準(zhǔn)確度由一般的DFT的10〓量級(jí)提高到10〓量級(jí)；當(dāng)分析至31次諧波時(shí)女被男操到高潮视频网站，計(jì)算時(shí)間約為經(jīng)典高斯消去法的〓国产精品怕怕无码，將能滿足實(shí)際的工程需要。

Surrounded and lifted up by the storied past or the harmonics of hand-me-down fiddles, banjos, mandolins, hammered dulcimers and guitars, each hardtack generation has been inspired and nurtured by the melodic expression of an ancient mountain region – Appalachia.

包圍而且被傳說上有名者舉起越過或者現(xiàn)成小提琴久草视频6、班卓琴超碰在线人妻免费、曼陀林www4438、被槌打的德西馬琴和吉他的和聲學(xué)，每個(gè)硬面餅世代已經(jīng)被遠(yuǎn)古山區(qū)域－阿帕拉契山區(qū)的有旋律表達(dá)激發(fā)而且養(yǎng)育男人网。

Based on the analysis of harmonic detection technology at home and abroad on the status and development direction of the foundation, Power harmonics of the basic theory and the detection algorithm.

本文在分析了國(guó)內(nèi)外諧波檢測(cè)技術(shù)的現(xiàn)狀和發(fā)展方向的基礎(chǔ)上日韩午夜不卡免费毛片，研究了電力諧波的基礎(chǔ)理論和檢測(cè)算法。

In sphere approximate, GPS/Gravity-BVP is Neumann problem over exterior spherical domains. Then the natural boundary reduction, suggested by Feng and Yu, is applied to deal with the three dimensional problems. By expansion in spherical harmonics, the natural integral equations of harmonic problems over exterior spherical domains are obtained. Meanwhile, a numerical method for solving geodetic BVP is developed.

在球近似下將GPS-邊值問題轉(zhuǎn)化為Neumann外問題欧美激情性爱四射在线，用自然邊界元法進(jìn)行自然邊界歸化日韩成人国语在线视频播放网站，得到自然邊界積分方程，再求自然邊界積分方程的數(shù)值解久久免费看妇高潮A级毛片按撑，與其他邊界元方法相比欧美性爱蜜腚，自然邊界元法的計(jì)算量大大減小，并且具有很好的逼近性質(zhì)欧美黑又硬，能有效地處理奇異積分色色色色色色论坛，是求解GPS-邊值問題有效方法。

Results indicate that:(1) by using HANTS, the researchers could get the EVI/NDVI harmonic curves, the mean VIs and the amplitude of the harmonics which then were utilized in the identification of the cultivated land, and EVI appeared to be more precise, with the overall accuracies of 97.17% and 95.99% and Kappa coefficients of 0.7938 and 0.6518, respectively.(2) Multiple cropping index was extracted by counting the number of the curve's peak; and when the threshold of the peak value of the NDVI and EVI curves were set as 0.25 and 0.20, respectively, the fallow land could be well figured out.(3) From harmonic curves, some eigenvalues, such as time of the maximum growth rate, time of peak and the value of peak can be extracted, based on which the crop types can be primarily distinguished. And EVI still performed better than NDVI in this section.

結(jié)果顯示：（1）利用傅立葉諧波變換得到的EVI和NDVI時(shí)間譜曲線的諧波余項(xiàng)及諧波振幅對(duì)耕地進(jìn)行識(shí)別黄色网站地址一，從識(shí)別精度來看黄色视频在线免费，EVI要優(yōu)于NDVI，識(shí)別精度分別為97.17%和 95.99%国产乱弄免费视频观看，Kappa系數(shù)分別達(dá)到0.7938和0.6518亚洲欧美日韩一级特黄在线；（2）通過計(jì)算時(shí)間序列曲線的波峰數(shù)能夠提取耕地的復(fù)種指數(shù)，并且在EVI和NDVI曲線波峰閾值分別設(shè)為0.20和0.25時(shí)香港之色鬼强奸女交警，休耕地能較為準(zhǔn)確地被識(shí)別出來曰曰人人公开免费公开视频；（3）通過提取作物生長(zhǎng)期內(nèi)曲線的VI最大增長(zhǎng)速率時(shí)間點(diǎn)以及峰值時(shí)間點(diǎn)等信息，作物種類能被初步識(shí)別欧美性交操B，并且EVI較NDVI具有更強(qiáng)的識(shí)別能力免费在线观看三级毛片。

How to measure harmonic effectively is necessary for improvement and optimization. The surveillance equipment for power quality, which can analyze the harmonics become more and more important in the low-voltage system.

如何準(zhǔn)確有效的檢測(cè)諧波是改善和優(yōu)化電網(wǎng)電能質(zhì)量的前提，帶有諧波分析功能的電能質(zhì)量監(jiān)控裝置在低壓系統(tǒng)中呈現(xiàn)越來越重要的地位免费A片在线视频。

Keywords: Harmonics, active power filter, Fourier Algorithm, Harmonic analysis and measure, Harmonic prevention

諧波免费看黄se视频网站，有源濾波器濾波器，傅立葉變換国产日本黄色网站免费观看，諧波分析測(cè)量伊人狼人在线观看，諧波抑制

Because the harmonic is harmful to the electric net and electrical equipment, it is very important to measure the harmonic accurately and restrain it. Some methods for harmonics measurement are proposed in these years.

由于諧波對(duì)電網(wǎng)及用電設(shè)備有諸多危害，準(zhǔn)確測(cè)量諧波及抑制諧波就顯得尤為重要久久小视频黄色A片。