periodic signal 中文意思是什麼
periodic signal
解釋
周期信號-
Eeg is a kind of complicated non - periodic bioelectricity signal and its research is still an important field for modern science
腦電是極為復雜的非周期生物電信號，對腦電的研究始終是現代科學的一大熱點。 -
The method can be used in the measurement of periodic and nonperiodic signal. according to the high accuracy and fixed gate - time measurement method, based on the multiple period synchronization method, the high speed, high accuracy and continuous frequency measurement is accomplished
將其再與一種從多周期同步法發展而來的高精度、定閘門法相結合，從而實現了高速、高精度、連續頻率測量，這非常適合非頻率量的頻率傳感信號的測量。 -
Error analysis for synchronous sampling of periodic signal
周期信號同步采樣誤差分析 -
Sampling theorem to periodic non - continuous signal from cavitation of piezoelectric pump
抽樣定理在周期性非連續信號的壓電泵氣穴現象中的應用方法 -
( 3 ) economic periodic fluctuation early warning signal system is built. on the basis of it, the early warning limits of all the indexes are determined
（ 3 ）建立了經濟周期波動預警信號系統，在此基礎上確定了各指標的預警界限。 -
The statistic of wavelet transform coefficient algorithm can solve the periodic noise, high - energy noise and some non - gauss noise simply and effectively ; bi - spectrum can acquire more information from the original signal than power - spectrum, detect more information except from range and restrain the gauss noise. short - time speech signal can be considered as stationary and with periodic non - gauss signal, so we can make use of bi - spectrum to obtain the speech character and separate the speech and noise and detect morse telegraph signal ; complex number spectrum variance algorithm is put forward based on the deeply observing speech data, it is a new algorithm, experiment show that it is simple, effective
統計演算法在解決周期信號、高能噪聲和高斯信號方面有獨特之處，能簡單有效提取以上噪聲的特徵;雙譜能夠提供比功率譜更多的有用信息，有效地檢測信號幅度之外的其它信息，並能有效抑制高斯噪聲，短時語音信號一般認為是平穩且有一定的周期性的非高斯信號，因而可以利用雙譜來提取語音信號特性並實現信噪分離;復數譜方差演算法是在對語音信號進行深入觀察和分析的基礎上而提出來的一種全新的語音特徵提取方法，此方法簡單而有效的提取了語音、噪聲的特徵以及檢測莫爾斯信號，基於實驗表明，該演算法取得了很好的效果。 -
In the second chapter, equivalent circuit of the eddy current sensor is firstly analyzed. based on that, the carrier signal generating circuit that is realized by the lc periodic circuit is introduced, thus, the carrier signal of standard frequency is obtained through the trimming capacity. subsequently, the disc type rotational armature generator and the rotational coupling transformer are separately leaded in to realize the power supplies of the carrier signal generating circuit and output of the measuring signal
在傳感器設計一章中，首先對渦流傳感器進行等效電路分析，在此基礎上分析了由電感、電容諧振電路構成的載波信號發生電路，並通過微調電容獲得了標準頻率的載波信號；接下來提出了採用盤式旋轉電樞發電機解決載波信號發生電路電源供給問題的方案，同時通過旋轉耦合變壓器的引入，使得測量信號輸出問題很好地解決；本章最後給出的一組實驗曲線充分說明了這一方案的可實現性。 -
The weak dynamic periodic measurement signal detection based on chaotic oscillators
基於混沌振子探測微弱動態周期測量信號 -
By studying the vibration signal characteristics in periodic loading machine system, vibration signal model including state equation and observed equation was constructed
通過研究周期性負載機械繫統振動信號的特點，構造了包括狀態方程和觀測方程的振動信號模型。 -
In order to analyze the rotation noise further, a new method for measuring the amplitude and phase of each harmonic component of periodic signal mixtures is established based on the morlet transform and fourier transform in theory, which will provide scientific warranty for reducing noise of disk mill
為了進一步分析爪式粉碎機的旋轉噪聲，理論上利用morlet小波變換結合fourier變換對旋轉噪聲各次諧波成分的振幅和初相位的提取，作了初步探討。 -
The stochastic resonance phenomenon in a bistable system under the simultaneous action of multiplicative and additive noise and periodic signal is studied by using the theory of signal - to - noise ( snr ) ratio in the adiabatic limit
利用隨機共振理論，我們研究了在乘性和加性噪聲以及周期性驅動力共同作用下的雙穩系統的隨機共振現象。 -
In this paper, eliminating the periodic narrowband noise with wavelet packet has been put forward. the periodic narrowband noise eliminating method has been proposed that has the optimal wavelet packet base. the instances show that this approach can eliminate the periodic noise of pd signal, and its dose not need set the external parameters
通過分析周期性干擾和局部放電信號的小波包分解特性，採用了最優小波包基來剔除周期性干擾，實例證明能夠很好的剔除局部放電信號中的周期性干擾，並且不需要外部參數設定。 -
Property change of unstable fixed point in controlling spatiotemporal chaos via periodic signal
在外加周期信號控制時空混沌中不動點性質的變化 -
In this paper, the chaotic motion of a planar 2r robot is controlled successfully based on the method of periodic signal perturbations for the first time
摘要本文通過外加周期信號擾動系統參數的方法以平面2r機器人為例首次對機器人機構中的混沌運動進行了成功的控制。 -
The simulation results show the feasibility of this method which provides a new and simple way through hardware linear multiplication for frequency multiplication of periodic signal with unequal periods
該方法採用硬體線性細分，為解決非等周期信號的倍頻問題提供了一種簡便易行的方案。 -
When there is a weak periodic signal is included in a bistable system, the effects of noise on the stochastic resonance in the system is investigated if both multiplicative and additive noise are white noise while the coupling between the two noise terms is colored noise
當雙穩系統中包含有一個微弱的周期性信號，而乘性噪聲和加性噪聲都是白噪聲，只有兩種噪聲之間的禍合為色噪聲時，我們研究了系統的噪聲對隨機共振的影響。 -
It is found that two main eof modes of turbulent heat fluxes mainly describe the flux variations in two trade wind regions. the mtm spectrum of the first time series of expansion coefficient shows a periodic signal at about two - to - three months and two - to - three years quasi - periodic signal ( at the 95 % level )
熱帶大西洋的增暖事件中，東風減弱，西風加強，赤道冷舌區海洋的潛熱和感熱損失隨sst的增暖而增大， itcz區海洋的潛熱和感熱損失則伴隨著風速的減小而減小。 -
For ac discrete digital signal, the zero - calculating method is applied to calculate the true zero in the periodic signal. for the measurement of ac and dc voltage spectrum, the faster fourier transform ( fft ) is used. to measure dc voltage ripple spectrum and frequency modulation of ac voltage, the digital filter is used
其中對于交變的離散數字量，採用零點撿出技術計算周波信號的真實過零點；對于交直流電壓頻譜，採用快速傅立葉變換進行頻譜分析；對于直流電壓脈動和頻率調制，採用數字濾波器進行濾波后再做分析處理。 -
Pay attention to the periodic maintenance of oilpressu - re signal device on cryogenic refrigerator
應重視低溫製冷機油壓安全訊號裝置的定期維護 -
The periodic function is separated into the digital quantity. it has the high stability signal sweep frequency using the phase - lock link to carry on to the digital quantity reading, through d / a transformation, the appropriate filter may obtain the high stability signal output
摘要將周期函數離散成為分離的數字量，利用鎖相環產生高穩定度的信號掃描頻率對數字量進行讀取，經過d / a變換及恰當的濾波可以獲得高穩定度的信號輸出。
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