noise phase 中文意思是什麼
noise phase
解釋
噪波的狀態-
In this paper, the concept of acceleration ambiguity function ( aaf ) and acceleration resolution is put forward for the first time. using aaf, the effects of target ' s relative acceleration on several outputs of a linear - phase matched filter are analyzed, such as the output signal - noise - ratio loss, the doppler resolution, the constraint on optimal accumulative time ( opt ) and their tolerable limits
論文首次提出並研究了加速度模糊函數和加速度分辨力的有關概念，並以加速度模糊函數為分析工具，詳細討論了加速度對線性相位匹配濾波器的輸出信噪比的損失程度、對多卜勒頻率分辨能力的影響程度、對最優相參積累時間的約束關系以及線性相位匹配濾波器輸出受加速度影響的容限等問題。 -
If one wants to retrive the encryping datable or she must know the phase keys and wavelength keys simultaniously, otherwise, the reconstructed data will be white noise like
要想得到存儲信息必須同時知道相位匙和波長匙，否則得到的數據將是一白噪聲系列。 -
With the established rf front - end system simulation platform, adding the digital modulated baseband signal, this paper simulated the multifold digital modulated signal ’ s transmission, such as 2ask, qpsk, and 16qam. then researches of power compression and phase noise of local oscillation influence the bit error ratio for different modulated system. the designing is satisfied multifold functions request with the high - powered and integrated broadband rf front - end
隨后在建立的寬帶射頻前端通用模擬平臺上，加入基帶數字調制信號，對多種數字調制格式的信號在該通用平臺上的傳輸作了研究，模擬了2ask 、 qpsk和16qam等調制格式信號的發射與接收，研究了功率壓縮和本振相位噪聲對不同調制的誤碼率影響，實現了滿足多種功能要求的寬帶高性能綜合射頻前端的設計。 -
Compared with existing modulating method, torque ripple is greatly reduced by uniform modulating in one monocycle, increasing current slope of upcoming conducting phase instantaneously suppresses the torque ripple by 30 ’ during low speed with obviously lower initiating noise
採用單周期內各功率管均衡調制的方式，不僅消除了反向電流，而且與其他調制方式相比，可使轉矩脈動較小。 -
As an important target of frequency synthesizer design, phase noise determines system ’ s sensitivity and selectivity whose design is being the emphasis as well as nodus at all times
它作為頻率合成器的重要指標，決定了系統的靈敏度和選擇性能，一直是設計者的難點和重點。 -
Surface transverse wave has the 1. 6 high frequency than rayleigh type surface acoustic wave ( using the same technology the frequency of devices of stw has about 1. 6 high frequency than rayleigh type surface acoustic wave ). the paper introduces the theory, design parament, technology and result expeiment of surface acoustic wave ( includes rayleigh surface acoustic wave and surface transverse wave, simple stw ) with low insertion loss, high q and researches the high frequency, low phase noise oscillator with 1ghz stw resonator as frequency element. and describes measurement method and finally experimantal result of the low phase noise surface acoustic wave oscillator
本文研究了以低損耗、高q值聲表面波（其中包括聲表面瑞利波- - rayleighsurfaceacousticwave ，和聲表面橫波等）諧振器的工作原理、設計參數、製作工藝及其實驗結果，並且研究了以1ghzstw諧振器為頻控元件的高頻率、低相位噪聲聲表面波振蕩器，以及低相位噪聲聲表面波振蕩器的測試方法和最終的測試結果。 -
New designed auto tracing arc eliminating device based on this technique contents more technology, which has sample circuit, wide tuning scope, quick response and low noise. this paper firstly introduces neutral grounding histroy. by analyzing the syntony grounding theory, the transient and stable process of one - phase grounding fault, the threaten to secure run of power system and the importance of exact compensation for capacitive current are cognized
論文中首先介紹了中性點接地方式的發展過程，通過對諧振接地原理和單相接地故障的暫態、穩態分析，認識到接地故障對系統安全運行的危害，通過消弧線圈對接地電容電流的迅速準確補償是減小故障危害的最主要手段。 -
A novel bi - directional dc / dc converter was introduced in the dissertation, which based on refer much converter data. the soft switching, phase - shifted pwm and bi - directional dc / dc converter hang together, depress circuit switch ullage and noise effectively, which provide condition to increase switch frequency, efficiency and reduce size and weight for the converter ; at the same, the converter have the virtue of structure compact, voltage and current stress small etc such as ordinary hard switch converter
本文作者在查閱國內外大量雙向dc dc變換器資料的基礎上，採用一種新型雙向dc dc變換器的拓撲結構，把軟開關技術和移相控制pwm技術以及雙向dc dc變換器技術有機結合在一起，有效地降低了電路的開關損耗和開關噪聲，為變換器裝置提高開關頻率、效率以及降低尺寸及重量提供了良好的條件。 -
While simulating the resonant circuits, we finished a microstrip resonance, which has high q - factor and fits to design w - band low phase noise oscillators. select beam lead hyperabrupt junction varactor and gunn die made in china as vco ’ s frequency turning component and minus resistance
此外，文中還對w頻段微帶結構直流偏置網路、微帶波導過渡等外圍電路進行了模擬優化，設計方法和結論對毫米波微帶電路設計具有通用的參考價值。 -
Row winding, winding engine adopting ac servo engine with berger lahr three phase mixed stepping can solve the resonance, big noise, high speed and small torque for traditional row winding hy normal stepping engine
1 、排線、繞線電機採用具有支流伺服電機運行特性的百格拉三相混合式步進。徹底解決傳統排繞用普通步進電機有共振區、噪聲大、高速扭矩小的缺點。 -
For phase space reconstruction of ship - radiated noise, using auto correlation function and mutual information to select the delay - time, and using false nearest neighbors method to select the embedding dimension
從自相關函數及互信息嫡兩個方面討論了相空間重構中延遲時間的選擇。 -
Thirdly, a unified colored - noise approximation is applied to calculate the steady state distributions of the dispersive optical bistability when the fluctuations in the amplitude and phase of the incident field are considered as colored noise
色散光學雙穩系統是本文研究的第三種光學模型。當入射光中的強度漲落和位相漲落分別看作色噪聲時，我們用統一色噪聲近似得到它們的定態強度分佈。 -
With linear time - invariant modeling of phase noise and definition of “ effective resistor ”, we analyze the critical parameters of the circuit and calculate the value of phase noise at the 1 / f ~ 2 region
引入「有效電阻」的概念對電路的各項關鍵參數在線性時不變模型下進行理論分析和推導，得到相位噪聲在1f2區域的理論值。 -
After analysising three existed methods for phase difference correction on discrete spectrum, it is recommended to correct the spectrum containing small noise in engineer practice by the first phase difference correcting method ( performing fft analysis on two continuous original sequence ) with harming window
綜合分析現有三種離散頻譜相位差校正方法，推薦在小噪聲工程實際中加hanning窗的第一種相位差法（采連續兩段信號作相同點數fft的相位差校正法）進行校正。 -
These circuits are optimized for both crystal drive level and phase noise
這樣的電路既可以降低抖動，又可以給晶體適當的激勵。 -
Methods of estimating baud rate, signal to noise ratio ( snr ) and reference phase are investigated. a modified euclidean algorithm is proposed to estimate baud rate of the burst packets. a cumulant based algorithm of estimating snr of star - qam is proposed which has better estimation performance in medium scope of snr
研究了自適應調制中波特率，信噪比和載波相位等參數的估計演算法；提出一種基於修改的歐幾里得演算法的波特率估計演算法，這種演算法可以對突發分組的波特率做出準確估計；提出一種星型qam信號的信噪比估計演算法，在中等信噪比條件下，具有較好估計性能。 -
Tpvm is a kind of random phase feeding method, which imports noise an d decreases the accuracy greatly. the effects of scpfm and sccpfm are better, especially the latter
二可能值法是一種隨機饋相法，引入了噪聲，反而使相控陣天線的波束指向精度大為降低。 -
The major job is manufactured a transmitter, which has three upmixer channels. its function is to up convert the signals from c - band to ka - band. the input local oscillator is provided by a low frequency crystal oscillator which has a good performance of phase noise, through 512 times multiply to ka band. this sysetem is used in the laboratory as transmitter source of the fuze, for the multidimensional objects in practise, which lead to the complexity of the reflect signal, so the amplitude, frequency and the phase of the transmit signals both have a key role in dealing with the reflection signals. therefore, this system requires for both the coherence of the single channel ’ s amplitude, phase and multi channels
本文的主要工作是應用戶要求製作一具有三發射通道的上變頻系統，可以將c波段的微波信號上變頻到ka波段的毫米波信號。系統的本振輸入基頻由一相位噪聲非常好的低頻率晶振提供，經過512次的倍頻放大至ka波段。本系統作為實驗室中引信的發射源，由於目標反射信號具有時變的多維性，反射信號變得極為復雜，在信號處理時，不僅信號幅值、頻率有決定意義而且相位關系也很有決定意義。 -
3 ) for weak noise interferogram or filtered interferogram, dyadic wavelet can be used to detect fringe edges. a gvf snake model was used to link discrete edges, the linked edges were kept well accordance with fringes of phase map. 4 ) phase unwrapping algorithm based on edge detection is suitable to well separated fringes, the unwrapped phase can be rewrapped to the original phase map
4 ）對于低噪聲情況下或濾波后的干涉條紋圖，在基於邊緣檢測的相位解纏過程中，利用snake模型可以高效準確的實現邊緣點的連接，所連接的邊緣線與干涉條紋很好的吻合，可將連線的精度控制在三個像元。 -
The soft switching, phase - shifted pwm and bi - directional dc - dc converter hang together, depress circuit switching loss and noise effectively, which provide condition to increase switch frequency, efficiency and reduce size and weight for the converter ; at the same time, it is proved the converter can achieve zvs in larger load variation, and the converter has the virtue of structure compact, voltage and current stress small such as ordinary hard switch converter
該變換器把軟開關技術和相移控制pwm技術以及雙向dc - dc變換器技術有機結合在一起，有效地降低了電路的開關損耗和開關噪聲，為變換器裝置提高開關頻率、效率以及降低尺寸及重量提供了良好的條件;同時，能拓寬零電壓開關的范圍，使變換器在較寬的負載變化范圍內都能實現軟開關。
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