order of zero point 中文意思是什麼
order of zero point
解釋
零點的階-
Summarize the common image pre - processing methods and point out their merits and faults. discuss the boundary effect of gaussian low - pass filtering ( glpf ). to improve it, the zero - order gaussian filtering for an open profile ( gfo ) is used
討論了高斯低通濾波的邊界效應，利用零階開環高斯濾波演算法，對高斯低通濾波進行了改進，使濾波圖像在圖像大小不改變的情況下，邊緣處的濾波效果得到明顯的改善。 -
High - frequency link power converters are receiving increasing attention. when the input frequency of ac - ac converter is quite high, such as 20khz or above, in order to make sure the converter switching action is restricted to the zero crossing point of the link voltage, the switching cycle becomes discrete pulse spectrums, however, the conventional pwm converters are ruled out because they would fail either to the efficiency or the low - distortion criteria
當交-交變頻器的輸入頻率非常高，通常為20khz時，為了在零電壓條件下實現逆變器開關管的通斷，變換器的開關時刻必須選擇在高頻交流電壓脈沖為零時，這意味著變換器開關時刻在時間軸上成為不連續的點，而常規的硬開關pwm變換器是將開關時刻選擇在任意時刻。 -
The first part of the paper is designing the testing project for grounding resistance and insulation resistance in a new way. using 16bits ad converter with programmable control amplifier replaced the way which used changing resistance to change measure range. lt is not only improved testing precision and develop the system expediently, but also reduced the area of the circuit boardwith the new way. in order to make the electric implement safety testing system have upstanding expansibility, the software and hardware of the system adopted the modularization design. adopted mcu atmegal28 as a master mcu which control mmi, realtime clock and communication with slaver mcu. atemga8 as the slaver mcu to realize testing function. so it is easy to add or reduce the testing project. the testing implement system has been developed successfully, and the comments for the system is that it has high precision, high expansibility and easy maintain. but considering the electric implement system should have intelligence and humanity abi lity. so this paper bring forward a scheme of electric equipment safety testing embedded system with speech control. after introduce the basic theory of speech recognition, the paper expatiate the characters of this system. the system is a noise conditon, not special people, small glossary, insulation word system. with these characters design the speech recognition as fellow. utilizing cross zero ratio and short energy to ensure jumping - off point and end point ; adopting mfcc as the character parameters of speech recognition ; the character parameters than be recognized by dtw. in order to ensure the credibility of this project, first realized by matlab in computer
在介紹了語音識別的基本原理后，闡述了本系統的特點：本系統是一個噪聲環境下非特定人、小詞匯量、孤立詞的語音識別系統。根據本系統的這些特點設計了如下語音識別方案：利用過零率和短時能量相結合的方式確定語音端點；採用mel頻率倒譜系數（ mfcc ）作為語音識別的特徵參數；得到的特徵參數最後通過動態時間規整（ dtw ）的模式識別方法進行識別。為了確保本系統實現方案的可靠性，首先通過計算機利用matlab軟體來模擬，在演算法模擬實現后又進一步增加環境的復雜性：加上較大的環境噪聲、突發性的噪聲等，再通過修改參數、修改參考模板、兩級識別等各種提高語音識別精度的方法來提廣東工業大學工學碩士學位論文高識別率。 -
In the wavefield - spread area, we uses the phase - shift operator as constraint in frequency - wavenumber field, while beyond the wavefield - spread data, we uses zero point at the ends of phase - shift operator as constraint to take discrete smooth interpolation so that the resulted operator satisfies two - order smooth and the length of this operator can be selected shorter in frequency - space field
通過離散光滑插值法，在頻率波數域中，以傳播區內的相移運算元為約束，在傳播區外的運算元兩端處以零點為約束，進行離散光滑插值，使得所得運算元具有二階光滑可導性，則其對應的頻率空間域中的運算元就可以取得很短。 -
On the singular point of meromorphic function of zero order in the unit circle
單位圓內零級亞純函數的奇異點 -
In order to realize biped steady dynamic walking, this paper adopted a trajectory of variable zmp ( zero moment point ), which was defined as a cosine curve
為了實現雙足穩定動步行，本文採用了餘弦可變zmp （ zeromomentpoint ）運動軌跡。 -
When the intensity of the laser field is weak, the velocity dependence of the average longitudinal force has the doppler shifted lorenztian resonance. at high intensities, there is a kink and change direction of the light pressure force near the point of zero velocity, the effects of the higher order harmonic light pressure forces become significant
當激光場強度比較弱時，作用在原子上的力為洛侖茲型，隨著激光強度的增加，依賴于速度的零階力在零速度附近方向發生了反轉，出現了扭結現象。 -
For example, if one - half of the order items that are specified in a case diagram have a cost value of zero, one - half the data will occur under a single point in the curve
例如，如果事例關系圖中指定的定單項有一半的cost值為零，那麼這一半數據將位於曲線上某點以下。 -
In the system, control unit accomplishes back - emf zero - crossing information reading and closed loop commutation. the system eliminates the pwm interferences and the commutating interferences by filtering with software algorithm. in order to make the bldc commutate exactly, the method of three - point estimation is used for phase locking in the system. the system also accomplishes several important objects, such as tmppt of photovoltaic arrays, unmanned supervision of the system, fault detection etc. the results of the experiment show that the device, which is made on the base of the principle above, can control the motor to complete the exact commutation
系統以motorola單片機jl3為核心，完成了系統外圍硬體電路和控制軟體設計，實現了直流無刷電機反電勢過零檢測，利用軟體濾波的方式消除了pwm波干擾及換相干擾；採用三點預估演算法，進行相位鎖定，以完成直流無刷電機準確換相；同時實現了光伏陣列工作點的tmppt跟蹤、系統無人監控和故障檢測等功能。
分享友人