白噪系數 的英文怎麼說

中文拼音 [báizàoxìshǔ]
白噪系數 英文
white noise coefficient
  • 白 : Ⅰ形容詞1 （似雪的顏色） white 2 （清楚; 明白; 弄明白） clear 3 （空的; 沒加他物的） pure; clear; ...
  • 噪 : 動詞1. （蟲或鳥叫） chirp 2. （大聲叫嚷） make noise; make an uproar; clamour
  • 系 : 系動詞（打結; 扣） tie; fasten; do up; button up
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 白噪 : white noise
  • 系數 : [數學] coefficient; ratio; modulus; quotient; factor
  1. 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。
  2. Thereafter, the applications of go sequences in single - cell s - cdma systems are discussed in this thesis. in additive white gaussion noise ( awgn ) channel, interference components in s - cdma systems accommodating more users than the spreading factor is analyzed based on the theoretical bound of the periodic correlation mean square property. then two interference - suppressed s - cdma system models of augmented capacity are proposed, along with the analysis and simulation results

    在加性白高斯噪聲（ awgn ）通道條件下，以序列集周期相關均方特性理論界為基礎，對序列個數大於系統擴頻因子的s - cdma系統干擾組成進行了分析，並基於截短wh序列提出了兩種高容量低干擾s - cdma系統模型，給出了分析和模擬結果。
  3. In this paper, after introduction of the code division multiple access ( cdma ) and orthogonal multicarrier ( mc ) technique, the system model of mc - cdma is analyzed and the bit error rate ( ber ) performance in downlink and uplink channel is shown in awgn channel by computer simulation

    本文在碼分多址技術和正交多載波技術原理基礎上，分析了高斯白噪聲通道中多載波碼分多址（ mc - cdma ）系統的數學模型，並且使用不同的擴展碼對下行通道和上行通道誤碼率性能分別作了計算機模擬分析。
  4. Doing the further research on the division frequency stack on the foundation of study of predecessor, at first the residual moveout correction is done to the seismic record, make the phase axle regularity, doing foundation for the same phase stack ; then carried on division scale processing by wavelet transform ; spectrum whitening is done to each scale, the high and low frequency band need to do prolongs, the middle frequency bands only increase the value of the frequency spectrum ; several kinds of methods that estimate the value of signal - noise ratio has been studied further, and summarize their advantage and disadvantage as well as the scope of application ; the seismic record after spectrum whitening is stacked by weighting with the value of the signal - noise ratio ; then estimate the value of signal - noise ratio which is each scale section after stacking, the scale that the signal - noise ratio is big is assigned big weighting, otherwise, the scale that signal - noise ratio value is small is assigned small weight ing, and carried on weighted reconstruct to each scale section

    本文在前人研究的基礎上，在分頻疊加方面做了進一步的研究。首先對地震記錄進行剩餘時差校正，校齊同相軸，為同相疊加做好基礎工作；然後對地震記錄用小波變換的方法進行分尺度處理；對各個尺度分別做譜白化，對于高、低頻段需要做頻帶延拓，中間頻段僅提升頻譜值；對于幾種信噪比定量估計的方法進行了深入的研究，並且總結了它們的優缺點以及適用范圍；對譜白化后的地震記錄用信噪比估計值作為加權系數進行加權疊加；對于各尺度的疊加剖面也進行信噪比估計，對于信噪比大的尺度給予大的加權系數，反之，信噪比值小的尺度給予小的加權系數，對各尺度疊加剖面進行加權重構。
  5. By virtue of the stochastic bifurcation theory, the transition of the atom movement at a crack tip in fatigue damage system is investigated. using the singular point theory of one - dimensional diffusion process and the stochastic averaging approach of energy envelope, a micro - model to describe the atom movement at the crack tip in homoclinic bifurcation fatigue damage system, which is in the presence of stochastic perturbation, is established. after the study on the characteristic of the diffusion exponent, the drift exponent and the character exponent of the fatigue damage diffusion process on singular boundary, the bifurcation behavior of a homoclinic bifurcation fatigue damage system, which is in the presence of parametric white noise, is examined

    採用隨機分叉理論，探討疲勞損傷系統裂尖粒子運動性質突變.利用一維擴散過程的奇點理論，並結合能量包絡的隨機平均法，建立了隨機擾動的疲勞損傷同宿分叉系統裂尖粒子運動模型，通過研究奇異邊界的擴散指數、漂移指數以及特徵指數特性，考查疲勞損傷裂尖粒子運動的同宿分叉系統受參激白噪聲影響的分叉行為
  6. The white gaussian noise was successfully separated from noise signal in low - field pulse nmr system and its parameters were estimated by using this method

    採用該方法從實際低場脈沖核磁共振系統噪聲信號中分離出高斯白噪聲並對其進行了參數估計。
  7. In the point of - information theory ; - the - baseband binary pulse amplitude modulated ( pam ) signal transmission, via turning the nonlinear receiver ' s parameters, is studied over an additive white gaussian noise ( awgn ) channel. it is demonstrated that the channel capacity of binary communication systems, for a given signal added noise, can be maximized by optimal designed receivers. this new form of sr is referred to as psr in a broad sense

    本文研究並設計了含有雙穩態隨機共振系統作為一個接收裝置的基帶數字通信系統，在加性高斯白噪聲通道中，通過研究這個非線性接收器的性能，發現了數字信號傳輸中存在的參數調節隨機共振現象?通道容量隨著系統響應速度的增加具有一個共振峰值，並對這種非線性現象發生的基本機理進行了解釋。
  8. The real - time accurate parameters are then transferred to the stochastic optimal controller by the self - learning system to control the attitude of satellites

    學習系統將干擾白噪聲參數的精確估計值傳送至隨機最優控制器以獲得精度優良的控制效果，通過模擬研究表明了方法的有效性。
  9. 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。
  10. Secondly, combining the unified colored noise approximation and the functional analysis, the steady state distribution function is derived when both multiplicative colored noise and additive white noise are included in a bistable system with colored coupling between two kinds of noise. through the two - state theory, the expression of signal - to - noise ratio ( snr ) is obtained. the phenomenon of stochastic resonance is investigated

    其次，我們綜合運用統一色噪聲近似和泛函近似的方法，推導了含有乘性色噪聲和加性白噪聲，並且兩種噪聲之間的耦合為色噪聲的雙穩非線性系統的定態分佈摘要不同類型的色噪聲對非線性光學系統的影響函數，然後通過雙態理論求出系統信噪比的解析表達式，對系統的隨機共振現象進行分析。
  11. Last, based on the mc - cdma system model above mentioned, the matlab simulation is done. by the simulation of the ber performances from white gaussian noise, peak power clipping and combating multipath interference are analyzed, and some conclusions are obtained that mc - cdma is superior to ofdm

    最後，在上述給出的mc - cdma模型中，通過matlab模擬分析了在mc - cdma與ofdm兩種系統中由高斯白噪聲、削波噪聲以及多徑干擾所造成的誤碼率分佈曲線，得出mc - cdma系統在無線數據傳輸方面較ofdm系統更具有優良的特性，並給出了比較具體的性能分析。
  12. After a great amount of detailed computer simulations and concise qualitative and quantitative theoretical analysis, the turbo codes " parameters and fpga specific hardware implementation architecture suitable for being integrated into dtv systems are determined. furthermore, the codec is completely designed with verilog hdl, ending with an occupation of less than a 600 - thousand - gate fpga chip. at this lowest hardware cost, a white noise snr threshold of 1. 8db at a net stream rate of 6mbps is achieved, which exceeds all other existent dtv systems " performance

    經過大量詳細的計算機軟體模擬和簡明扼要的定性與定量的理論分析，最終確定了數字電視系統中適合採用的turbo碼參數及針對fpga特殊構架的硬體實現結構，並用verilog硬體描述語言完成了turbo碼編譯碼器的完整設計，以佔用不到一片60萬門fpga晶元的較少的硬體資源取得了在6mbps凈碼率下1 . 8db的白噪聲信噪比門限這一遠遠超過現有任何數字電視系統的性能。
  13. 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。
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