white gauss noise 中文意思是什麼
white gauss noise
解釋
白高斯噪聲-
Applied research on rotated machine of fault diagnosis based on emd added gauss white noise
在旋轉機械故障診斷中的應用研究 -
In light of highly dependence among steps of fingerprint preprocessing, we analyzed the whole process of fingerprint preprocessing, proposed new approaches for image preliminary filtering and the design of orientation filter, and got satisfactory results of preprocessing on the fingerprint containing gauss white noise
由於指紋預處理的各個環節之間具有很強的相關性，本文對其全過程作了系統的分析，對其中的圖像初濾波和方向濾波器設計的問題提出了新的見解，並對含高斯白噪聲的指紋圖像取得了較好的預處理效果。 -
The output components of the de - spreading correlator are analyzed and the expressions for the pf and pd of the step acquisition are given under the condition of additive white gauss noise
並在接收端噪聲為加性白噪聲情況下，對解擴相關器輸出成分作了詳細的分析，推導出了步進搜索時的虛警概率和檢測概率的公式。 -
Some valuable conclusions are summarized by theoretical analysis and simulation experiments : from the side of signal processing, pulse jamming can be deleted by the method of time - domain sliding window accumulation and can be restored by interpolative prediction. ; gauss white nose can be attenuated while jamming disperse point - target by the method of time - frequency analysis in time - frequency domain. ; radio frequency noise jamming can be deleted by the method of average range frequency spectrum and notching in frequency domain
通過大量的理論分析和模擬實驗，得到了一批具有一定價值的結論：從信號處理的角度出發，對于脈沖式干擾，能夠運用時域滑動窗口積累的方法去掉，並且通過預測插值得到較好的恢復；對于高斯白噪聲干擾，在時頻變換域內應用時頻分析方法可減小其對分散點目標的干擾；對于射頻噪聲，通過平均距離頻頻法和頻域陷波的方法可以去掉；從改變合成孔徑雷達系統角度出發，類似雙基地雷達能夠避免各種干擾，對發射信號進行調幅，調相以及改變調頻斜率都是較好的抗干擾方法。 -
Abstract : all three types of transmultiplexer are explained from the view of filter banks. addtionally, an optimal algorithm for the analysis filter banks is proposed under the environment of additive white gauss noise ( awgn ). the analysis filter banks derived from the algorithm can match the spectrum characteristics of the input siganls
文摘:從濾波器組的角度出發，對多路復用通信方式進行了解釋，同時給出了高斯加性白噪聲情況下分析濾波器組的最優求解方法，通過該方法得到的分析濾波器組能夠較好地跟蹤輸入信號的譜特性。 -
In the thesis, from a new point of view, we investigate the application of non - linear dynamics into the turbo codes and mud area, namely, how the chaos dynamics can be applied in turbo codes development, and how the chaos and neural networks dynamics can be applied in mud. the main contribution of the thesis can be summarized as follows : 1. an iterative decoding algorithm based on map ( maximum a priority ) and soya ( soft output of viterbi algorithm ) in awgn ( additive white gauss noise ) channel is proposed, and the effectiveness of the algorithm is justified by simulation performed on awgn and rayleigh fading channels
為介紹本文作者的創新工作，在論文簡要講述3g 4g的發展過程及其關鍵技術，其中著重介紹turbo碼和多用戶檢測的發展過程、研究內容和基本原理之後詳細介紹了作者的如下貢獻和創新： 1 、根據turbo碼的迭代譯碼原理，系統地推導出awgn通道中turbo碼基於map和sova的迭代譯碼演算法，演算法的有效性由awgn通道和rayleigh衰落通道下的性能模擬得到證實。 -
It comes up with a new notion, d - solution, which is applied to the distance estimation, by virtue of hilbert space ; furthermore, the dissertation has gained a necessary condition which is identity of minimum mean - square value in linear function classes, so that d - solution extends minimum mean - square value within the domain of nonlinear function equation or equation system ; and, the dissertation studies in detail the classical moment estimation and maximal likelihood estimation on the parameters of ar ( p ), a series of theorems in the estimation section shows the moment estimators are consistent on the ground of large samples jikewise, those distribution functions of the estimated parameters accord to maximum likelihood estimation converge gauss distribution if the white noise is gaussan
首先，藉助hilbert空間理論，提出了距離估計的d -解，給出了d -解的必要條件，這個條件在線性函數類里即是極小二乘估計法， d -解的必要條件滿足的方程實質上將極小二乘估計法推廣到多函數及非線性函數類。再而，詳細地研究了多元弱平穩序列自回歸模型ar （ p ）的參數經典的矩的替代估計和極大似然估計，獲得矩的替代估計的一致性的結果。對基於gauss白噪聲假設多元弱平穩序列自回歸模型的均值、白噪聲的協方差陣的極大似然估計都有依分佈收斂到多元正態分佈的統計性質。 -
At the same time, dvb - t system needs to be improved on the immunity against gauss white noise and the mode of channel coding
U盯隊』引i團「斯白噪聲和通道編碼等方面也存在明顯不足。 -
Distortion and gauss white noise distortion. the simulation of ideal system aims at absolutely clean channel, and the nonideal systems respectively set their channels as ricean channel ( multipath distortion channel ) and awgn ( gauss white noise distortion channel ). at the end of simulation, it use examining means of communication system as ber ( bit error rate ) analysis and eye diagrams analysis, then gives a summarize and a comment to the system
模擬中的系統結構、模塊和傳輸速率的選擇符合標準的dvb1規范en300744 ，理想系統的模擬是針對完全乾凈的通道，而非理想系統分別將通道設置為hcean通道哆徑干擾通道）和awgn （高斯白噪聲通道） ，模擬最後用通信系統的檢測手段進行誤碼率分析和眼圖分析，並對該系統作了總結和評價，加深對了dvb1系統的信號處理過程的理解，明確了目前面臨的問題。 -
3. the effect of measurement error is considered as gauss white noise. through theoretical analysis and numerical simulation, damage assessment results are also subject to gauss distribution. furthermore, results indicate that the mean keeps intact, but the standard deviation is linear to error level
3 、將測量誤差的影響考慮為正態分佈的高斯白噪聲，通過理論分析和數值模擬，說明用靈敏度分析法識別結構損傷時，損傷識別結果也服從高斯正態分佈，其平均值保持不變，而方差則與誤差水平成線性關系。 -
Based on the principles of dsss and sess, the mechanism of sess employing the ar filter is illuminated. it transfers the data source to dynamic gauss white noise. then quantizing and optimizing the noise, we can get the final spread sequence
它動態地把信源序列轉化成高斯白噪聲分佈的數據流，再通過量化、平衡編碼進行序列優化，以得到所需的擴頻碼。 -
Then on one hand, author makes researches of anti - jamming against pulse jamming 、 gauss white noise jamming and radio frequency noise jamming from the side of signal processing. author exercises much signal processing knowledge of time - domain sliding window accumulation 、 wavelet analysis 、 time - frequency analysis and linear prediction and carries out many simulation experiments. on the other hand, author proposes the anti - jamming methods of using a sar similar to double - base radar and modulating the amplitude 、 the phase of emission signal and changing the frequency modulation slope from the side of changing sar system model
作者首先提出了合成孔徑雷達抗干擾的定義、分類以及評價抗干擾方法好壞的主客觀標準；然後，一方面從信號處理的角度出發對脈沖式干擾、高斯白噪聲干擾以及射頻噪聲干擾進行了抗干擾研究，其中運用了時域滑動窗口積累，小波分析，時頻分析以及線性預測等信號處理知識，做了大量的模擬實驗；另一方面，本文基於改變合成孔徑雷達系統模式提出了利用類似雙基地雷達來抗干擾，以及對發射信號進行調幅、調相以及改變調頻斜率來抗干擾，同樣做了相應的模擬實驗。 -
Its power spectrum is similar to gauss white noise. the similar random correlativity is good
其類似白噪聲的功率譜，良好的類隨機相關特性，具有應用於擴頻通信的潛力。 -
Analysis shows that they can be considered as the stochastic process around some working state under the disturbance inpllt of gauss white noise
分析表明，它們可看作是在高斯白噪聲干擾輸入下的圍繞工作點附近來回波動的隨機過程。
分享友人