穩態信號 的英文怎麼說
中文拼音 [wěntàixìnháo]
穩態信號
英文
steady state signal-
The method of detection on transient signal by the slice of cyclo - bispectrum in stationary random noise is proposed in this paper, simulation results are presented also
摘要提出一種在平穩隨機噪聲中檢測暫態信號的循環雙譜切片方法，同時給出模擬結果。The synchronous signal of mc1311 cmos camera is shaped by monostable trigger 74ls221
使用單穩態觸發器74ls221對送給mc1311cmos攝像機的同步信號進行整形。For micro - cavity semiconductor laser, station model is proposed in this paper and its steady - state and instantaneous characteristics when the coupling efficiency of spontaneous emission into a lasing mode is equal to 1 are analysised. for current noise, sp noise, noise, p noise, as well as current modulation, sp modulation, modulation and p modulation, using small - signal approximation, we derive the laser ' s corresponding transfer functions. and we calculate their signal - to - noise ratio ( snr ) gain in various parameters through frequency domain analysis in the premiss of large input snr
本文對于微腔半導體激光器，提出站模型，能夠較直觀簡潔地分析微腔半導體激光器的穩態和瞬態特性，利用此模型對具有重要實用價值的= 1的微腔半導體激光器進行了討論；對于電流i噪聲、自發發射壽命_ （ sp ）噪聲、自發發射因子噪聲、光子壽命_ p噪聲，以及電流調制、 _ （ sp ）調制、調制、 _ p調制，在小信號近似下，得到了相應的激光器的傳遞函數；在大信噪比的前提下，對激光器進行了頻域分析，分別計算了它們在不同參數下的信噪比增益，分析了其抗噪聲性能。The motion carriers such as the automobile, trains, war vessels, the plane and so on, are in flux by their position and azimuth, if want kepting satellitic message and taking over satellitic signal, must adopt the platform system of tenaclous tracking satellite antenna
汽車、火車、艦船、飛機等運動載體的位置和姿態不斷的在變化，要保持與衛星的通訊聯系和接收衛星視頻等信號，就必須採用衛星天線穩定跟蹤平臺系統。More and more people begin to attach importance to its potence gradually. according to the basic principle of vbi, this paper acquires related experience from the advanced technique for delivering of control signals during the period of vbi. it introduces a scheme using a single coaxial - cable to transmit video signals and control signals simultaneously, in which the key technique is the transmission of control signals in the vertical blanking interval of video signals
本文根據場消隱期傳輸技術的基本原理，通過借鑒國內外場消隱期傳輸信號的先進技術和相關經驗，提出一種新型的綜合數據傳輸業務的應用電視，闡述了其圖像信號和控制信號共纜傳輸的總體設計方案，並結合bch糾錯編解碼技術和systemview動態模擬軟體，實現和驗證了控制信號在場消隱期間的穩定可靠傳輸。Digital simulations reveal many valuable characteristics of the power system low frequency oscillation. the limit of conventional analysis and the appearance of new technique such as wams together with the advance of the nonlinear theory, require a new method for oscillation research of power grid, which can combine small and large disturbances analysis effectively
論文指出，由於傳統小信號穩定分析方法的局限性，及動態監測設備和非線性理論等新技術與理論的迅速發展，有必要研究新的振蕩分析方法，以更加有效地揭示互聯系統小擾動、大擾動后的振蕩機理，並研究相應的控制策略。Further investigated and analyzed composition structure and flow data that dsa ' s formation of image is systematic at first in this paper, carried on intact summing up to the data in the system, having given out the plan of design of high speed and large capacity data channel of digital formation of image system of x - ray ; deeper discussion of control way on sdram, give solution that many pieces of sdram works togetherses of realizing heavy capacity, designing of heavy capacity deposit board realize storing at a high speed to vision data by frame on the basis of this ; through further investigations of interface of pci bus, optimize back end state machine design and urge procedure making with lower, giving intact pci interface scheme that realize high speed dma data transmission and satisfy request of video transmitting ; further investigate the figure systematic design method of programmable logic devices, due to the difficult point of drifting about of enabled signal in fifo in common use and setting up and keeping of output signal, method has been proposed of improving stability of system making use of signal utilizing the phase locking ring in fpga to offer a lot of clocks to move thus realize coordinating the data between every module of system to transmit at a high speed by making use of fifo
本文首先對數字減影血管造影（ dsa ）成像系統的組成結構和數據流向進行了深入研究和分析，並對系統中的數據流向進行了完整的歸納和總結，給出了x線數字成像系統中的高速大容量數據通道的設計方案；在對sdram的控制方式做了深入探討后，給出了實現大容量多條sdram共同工作的解決方案，在此基礎上設計了大容量幀存板實現對圖象數據進行高速存儲；通過對pci總線介面的深入研究，優化後端狀態機設計和低層驅動程序開發，給出了完整的pci介面方案實現高速dma數據傳輸，完全可以滿足視頻傳輸要求；深入研究了基於大規模可編程器件的數字系統設計方法，針對通用fifo使能信號漂移、輸出數據難于建立和保持等設計難點，提出了利用fpga中的鎖相環提供多個時鐘相移的信號來提高系統穩定性的解決方案，從而實現利用fifo來協調系統各模塊之間的數據高速傳輸。This paper researches the non - direct - grounded system fault detection from software arithmetic view, whose main content is as follows : the paper analyses the system running characters before and after fault. and the paper analyses the fault transient signal and fault steady signal and all parts in fault steady signal after the single line - to - earth fault occurs, and discovers the fault laws and appearance of fault signal. the analyzing of the fault laws and fault phenomenon of non - direct - grounded system all above is the base of analyzing arithmetic
本文針對小電流接地系統選線的問題，從軟體演算法的角度進行了研究，主要內容如下：對小電流接地系統故障前和故障后系統的運行特點進行了分析，並且對小電流接地系統發生單相接地故障后，故障暫態信號、故障穩態信號以及故障穩態信號的各種成分進行了深入的分析，找到了故障的規律以及其故障信號的表現形式，為對各種演算法的分析比較打下了基礎。A study on control of ac dc power systems based on coi information
基於慣量中心動態信號的交直流互聯系統穩定控制Since a pseudo - covariance matrix of the observed signals supply additional constraints if the sources are assumed to be independent and improper, it can be proved that the second order statistics is sufficient to separate the mixed complex - value signals for both stationary and non - stationary sources
假設源信號是獨立的且非常態，信號的偽協方差矩陣能增加約束條件，從而可證明二階統計量能夠完全分離復值混合信號，而且對信號是否平穩不作要求。In vibration test, the signal is always along with noise. if the noise belongs to white noise, fourier transform is very suit to identify and process it, after then remove it. but when there exists low energy impact signal, traditional band pass filter remove noise and the precise position of impact signal is blured
對于白噪聲，由於它是穩定信號，所以也可以使用fourier變換定位，以便在合適的頻段進行提取。但是對于低能量突變瞬態信號，在信噪比比較低的情況下，由於帶通濾波的平滑作用，瞬態信號的位置信息也變得很模糊了。Based on the different work states of engine, the engine vibration signal collected in it ' s steady work conditions is analysed by the technique of confrequency spectrum ; the signal related to the fast run - up state is processed by stft and wavelet analysis
根據發動機的工作特點，將振動信號分為穩態振動信號和過渡態振動信號。穩態信號採用傳統的傅立葉分析方法，過渡態信號採用了短時傅立葉變換和小波方法。Based on the analysis of stable and transient waveforms in the power system, the paper use the exponent - typed signal to describe the signals in the power system including the dc element, fundamental, harmonics, interharmonics, subharmonics and the attenuation of the dc element and the sine waveform
根據對電力系統暫、穩態信號波形的分析，本文用指數型信號來描述電力系統信號（包括直流分量、基波、諧波、間諧波、次諧波以及衰減直流分量、衰減正弦波等） 。The wavelet ' s characteristic of focus " varieties make wavelet better analyses ability in the time field and the frequency field. it is a perfect method of analyzing non - steady signal, and it is fit to analysis ultrasonic pulse echo signal
而小波的「變焦距」特性使得小波分析在時域和頻域中都具有良好的分析能力，是一種理想的分析非穩態信號的途徑，適于對超聲脈沖回波信號的分析。This paper analyses the steady and transient character of line fault when the neutral point connects to ground in different ways. from the angle of signal processing, the wavelet analysis theory and the artificial neural networks are introduced to fault location, in which the fault character is not the steady signal but the transient signal
本文在中性點不同接地方式下，研究和分析了線路零序故障特徵量的穩態和暫態特點，主要從信號處理的角度，提出將小波分析理論和人工神經網路原理運用到故障定位，將基於穩態信號的定位原理轉移到基於故障特徵量暫態信號的定位原理。Wavelet transform is a new signal - processing tool developed in resent years. its ability of multi - resolution time - frequency analysis not only suits for stationary signals, especially suits for dynamic signals characteristic of non - stationary and transient
小波變換是近十幾年來發展起來的一種新的信號處理工具，其多解析度的時頻分析特性，不僅適用於平穩信號的分析處理，尤其適用於非平穩的動態信號的分析處理。The discrete fourier transform algorithm can analyze time - domain ' s stationary disturbance signal effectively and confirm the signal ' s distributing in the frequency domain
而離散傅立葉變換則可有效地對穩態擾動進行分析，得出時域穩態信號在頻域中的分佈情況。In the case of white noise, we research the system stochastic differential equation and fokker - planck ( fpk ) equation detailedly. the mechanism of sr is re - explained by system response speed and a new method is introduced, i. e., psr theory and method. it is shown that the output signal - to - noise ratio ( snr ) obtained by adjusting systems parameters can exceed that by turning noise intensity, especially when the input noise intensity has already been beyond the resonance region or point
在白噪聲假設下，以系統隨機微分方程和其概率密度滿足的fpk方程為基礎，本文詳細地探討了非線性雙穩態信號處理系統輸出的數字特徵，引入了系統響應速度，重新解釋了隨機共振現象產生的機理；通過系統參數調節，而不是調諧噪聲來產生隨機共振現象，提出了參數調節隨機共振理論和方法。Realizing the application of the empirical mode decomposition in the instantaneous characters extraction of the non - linear and non - stationary signals. in the meanwhile, it has proved that it is feasible to realize the similar pattern matching of the stocks " forecasting, if the empirical mode decomposition and the forward propagation learning algorithm of multi layered neural networks with feed back connections are related
實現了經驗模態分解方法在非線性和非穩態信號瞬時特徵提取中的應用；同時利用實驗數據證明了經驗模態分解方法與多層反饋神經網路fp演算法相結合，來完成股票數據預測中的相似模式匹配的可行性。The new criterion obtain the singular signal fully and exactly as the jumping - off place, take advantage of wavelet disposing the transient singular or faint signal, scarcity of the analyzing principle based on steady signal is fetched up and enhance the anti - disturb capability, so that it has higher reliability and accuracy
新判據以更充分更準確的提取信號奇異性信息為出發點，利用小波對暫態突變信號或微弱變化信號處理上的優勢，彌補了以往傳統的基於穩態信號分析原理不足，增強了抗干擾能力，具有更高的可靠性和準確性。分享友人