chaotic noise 中文意思是什麼

chaotic noise 解釋
混沌噪聲
  • chaotic : adj. 渾沌的；混亂的。adv. -ically
  • noise : n 1 聲音，聲響。2 叫喊；嘈雜聲，噪音；喧鬧聲；吵鬧，騷動，騷擾。3 〈古語〉謠言，風聲。4 〈美國〉...
  1. The circuit is used in high resolution resistance measuring. the coupled chaotic circuit array composed of this circuit is researched by computer simulation and circuit experiment. results show that, it is feasible to improve the stability of orders of chaotic systems and reduce noise in measuring by coupling

    最後，對以這種單電源驅動的混沌電路為基本單元所構成的耦合混沌陣列在提高系統輸出的穩定性和抑制噪聲作用方面，進行了計算機模擬研究和實際的電路實驗研究，結果顯示通過耦合的方式，可以將信號檢測的精度提高近一個數量級。
  2. Chaotic switching modulations introduce low - frequency harmonic spectrum of output voltage as random switching modulation. in some case, low - frequency noise ripple offset the effect chaotic switching modulations reduce the level of emi. it indicates that the ccfmfd integrates the advantages of spreading harmonic power at the multiples of the switching frequency and not introducing significant noise ripple at low - frequency range. among all chaotic switching modulations, the ccfmfd is considered as the best choice in applying to dc / dc converter

    與隨機調制模式相同，混沌開關調制模式也引入輸出低頻噪聲紋波，有些情況下低頻噪聲紋波可能抵消混沌開關調制降低emi水平的效果。分析表明： ccfmfd模式具有較好的降低emi水平和引入較小低頻紋波的優點，可以作為混沌調制模式較佳的選擇。
  3. Due to the properties of chaotic system such as the sensitivity to initial parameters, the ergodicity and the statistics property of white noise, it is used in multimedia information encryption in this paper

    本文利用混沌系統的初值敏感性、稠密性和偽隨機性等諸多優點，將其應用於多媒體信息加密。
  4. Study of noise reduction in coupled chaotic measurement circuits

    混沌測量電路耦合降噪研究
  5. Very weak signal was detected based on the property of chaotic system ' s sensitivity to initial conditions, and noise was reduced by coupling chaotic measurement circuits

    摘要利用混沌系統的初值敏感性來測量極其微弱的信號，並通過混沌測量電路耦合來抑制噪聲。
  6. Finally, coupled chaotic system is realized to measure the fluctuation of magnetic field. meanwhile, it is proved that coupled chaotic system could be used to reduce noise. this experiment also finds an efficient approach for noise reduction in chaotic measurement

    最後把耦合混沌測量系統用於磁場測量中，實現用多個混沌電路耦合的系統測量微弱的磁場變化，證實了耦合混沌系統有較好的抗干擾能力的結論，為混沌測量的抗干擾措施找到了一條比較有效的途徑。
  7. Do a estimation is often encountered in vary application of radar and communication system. the dissertation then discusses the estimation of interested signals in chaotic noise. we analyzed three different algorithm for this purpose

    混沌背景中的有用信號的參數估計問題是在雷達應用（如波達方向估計）和混沌調制的通信系統中窄帶干涉抵消中經常遇到的重要問題之一。
  8. By coupling of many chaotic circuits, orbits can be closed each other, distance can be shorted, and noise in measuring can be reduced

    它是通過混沌電路的耦合，使耦合軌道相互靠攏，軌道距離減少，從而抑制電路中的噪聲。
  9. Time delay was chosen by using autocorrelation function method and mutual information method, while reconstruct dimension was obtained by g - p saturation correlation dimension method and false nearest neighbor percentage method. furthermore, initial neighborhood radius was computed by the estimated noise level based on the g - p saturation correlation dimension method. secondly, a noise reduction of the inflow time series was carried out by chaotic nonlinear local projection noise reduction method, and the effects on noise to chaotic characteristics and state reconstruction parameters were discussed

    採用g - p關聯維法計算關聯維數； rosenstein法和kantz法計算最大lyapunov指數；重構相空間的延遲時間採用了自相關函數法和互信息量法；嵌入維數採用了飽和關聯維法和偽鄰近點法；初始領域半徑的選取採用了基於g - p關聯維法的噪聲水平的初始估計方法。
  10. Compared with dcsk modulation, the fm - dcsk modulation changed the chaotic signals with random magnitude into the signal with constant magnitude and random frequency, thus the systemic noise performance is achieved

    將振幅隨機變化的混沌信號變為頻率隨機變化而振幅恆定的混沌fm信號，降低了系統的誤比特率。
  11. The efficiency of the error - based detecting method when it is used to detect dsss signal in chaotic noise is analyzed theoretically, and simulations are carried out to show its feasibility and efficiency. 4

    從理論上分析了用於檢測周期信號的基於混沌噪聲模型的誤差檢測方法，對檢測混沌噪聲中的直擴信號同樣有效，並通過模擬實驗證實了這種誤差檢測方法用於檢測微弱直擴的可行性和有效性。
  12. 3. the detection of delicate signals in chaotic noise is studied

    3 、研究了混沌噪聲中微弱信號的檢測問題。
  13. Weak signal detection and extraction against the background of chaotic noise based on empirical mode decomposition

    基於經驗模態分解的混沌噪聲背景下弱信號檢測與信號提取
  14. Simulation results and real - life data are used to show the feasibility of the proposed method. ls - ar spectrum method and ga - mpsv are presented to solve the estimation problems in chaotic noise

    基於混沌噪聲的預測值，提出了混沌噪聲中的信號檢測方案，並進行了相應的模擬試驗。
  15. This error - based detecting method is improved, that is, predicting the chaotic noise is changed to estimating the chaotic noise. a predicting method is improved to an estimating method to estimate the chaotic noise. then the time used to train the parameters is saved, and no invalid detection will be gotten even if signals come into

    4 、改進了誤差檢測方法，即，將預測混沌噪聲改為估計混沌噪聲，並改進了一種非線性預測演算法，將其用於估計混沌噪聲，省去了參數訓練的時間，避免了參數尚未訓練好時就有信號進入背景噪聲中，而使檢測無效的情況。
  16. Effects of noise to the approximate entropy of the chaotic system

    噪聲對混沌系統近似熵的影響
  17. By thorough study of chaos, more and more researches show that a lot of weak signals are embedded in the strong chaotic noise

    隨著對混沌學的深入研究，越來越多的科學研究表明很多微弱信號湮沒在具有混沌行為的背景信號里。
  18. As a result, the extraction of weak signal from strong chaotic noise has been a research focus and also a difficult problem in these recent years

    因此，檢測湮沒在強混沌背景下的微弱信號是目前國內外研究的熱點和難點。
  19. For the detection problem in chaotic noise ( clutter ), this paper presents to use the rbf neural network to solve it. analysis of the algorithm is given out

    全針對混沌雜波中的信號檢測問題，基於神經網路具有的擬和任意非線性函數的能力，建立了混沌系統的神經網路模型。
  20. First, calculating time delay and embedding dimension to reconstruct phase space. second, based on chaos theories, the artificial neural network is used to build one - step and multi - steps predictive model. third, combining with an adaptive filter, predictive error is processed so that weak signal is extracted from strong chaotic noise

    研究的內容分為三個方面: （ 1 ）確定嵌入維數和延遲時間重構相空間; （ 2 ）將混沌理論與人工神經網路結合，建立混沌時間序列（混沌背景）的一步與多步預測模型; （ 3 ）結合自適應信號分離器對預測誤差進行處理達到檢測微弱信號的目的。
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