時分信號分離 的英文怎麼說

中文拼音 [shífēnxìnháofēnlí]
時分信號分離 英文
time demultiplexing
  • 時 : shí］Ⅰ名1 （比較長的一段時間）time; times; days:當時at that time; in those days; 古時 ancient tim...
  • 分 : 分Ⅰ名詞1. （成分） component 2. （職責和權利的限度） what is within one's duty or rights Ⅱ同 「份」Ⅲ動詞[書面語] （料想） judge
  • 號 : 號Ⅰ名1 （名稱） name 2 （別號; 字） assumed name; alternative name3 （商店） business house 4 （...
  • 離 : Ⅰ動詞1 （離開） leave; part from; be away from; separate 2 （背離） go against 3 （缺少） dispens...
  • 時分 : 時分time:黃昏時分 at dusk; at twiligh; cock-shut time
  1. The degradation of i k b and dissociation from nf - k b complex are essential process for activation of nf - k b. there is no report about whether cck - 8 inhibits nf - k b activity through inhibiting lps - induced degradation of i k b. the present study was designed to observe the regulatory effect of cck - 8 on changes of immune functions induced by lps, the receptor mechanism and signal transduction mechanism involving mapk, stat3 and i k b at different levels including in vivo and in vitro, in order to study its immunomodulatory effect on reversing es and its molecular mechanisms

    Ikb的降解、並從w兒b復合物上解離是w4b激活的必需過程。 ccks是否通過抑制lps誘導的ikb降解，從而抑制nf幾b激活尚未見報道。本研究在整體、細胞及分子水平，觀察了ccke對lps引起的免疫功能改變的調節作用，研究了其受體機制及mapk 、 stat3和ikb的信號轉導機制，以探討cck七抗es時的免疫調節作用及其分子機制。
  2. By using the processing method of sliding time window, the problem of the periodicity range ambiguity is solved. meanwhile, the problem of range ambiguity which is produced because the range of target is biger than the maximum range of radar is also solved by using this method. then, the pulse width parameter which is the most important in the parameters of fmicw is analyzed. the stricter restrict is given to ensure the range spectrum has only one beat frequency after signal processing. at last this thesis introduces the different signal processing methods of fmpcw and fmicw

    同時利用該方法解決了fmpcw信號的由於目標距離超過雷達的最大單值測距范圍而引起的距離模糊問題。然後對fmicw波形參數中最為重要的脈沖寬度進行了分析，給出了更為嚴格的約束條件，保證了信號處理后距離譜峰值的唯一性。最後，分別介紹了fmpcw和fmicw信號的不同處理方式，並對兩者不同的時域濾波性能進行了比較，並對二者的差異進行了分析。
  3. Based on the analysis of the beat frequency signal, the expression of the beat frequency phase is deduced. the expression indicates physics meanings of quantities to be detected and supplies theoretical bases for detection methods. by using two - dimensional fft, the range and velocity information of target is got out from the echo. according to the periodicity range ambiguity of symmetrical pulses in fmpcw, the processing method of sliding time window is used

    通過對差頻信號進行的分析，得出了差頻相位的具體表達式，表現出了要檢測的各量的物理意義，對檢測的方法提供了理論依據。利用二維fft方法，可以有效地提取回波中目標的距離與速度信息。對于fmpcw信號由於均勻脈沖產生的周期性距離模糊的問題，採取時間波門的處理方法。
  4. Taking a view of pure time field, this paper presents dissolvable signals and basic concepts of sampling ; and also gives the very condition of discrete of signal ; this paper uses linear algebra to analysis this kind of signal and then gives some results and relevant deductions ; based on these results, 1 made a further step to analysis some typical band - limited signals in order to proof the coherence of my theory of dissolvable signal to the typical sampling theory ; i made some preliminary study about the feasibility of sampling and recovering of this kind of signal

    本文從純時域角度出發，給出了可分解信號及其采樣的基本概念；也指出了信號可離散化的條件；利用線性代數理論給出了對這類信號進行采樣的分析理論及相應的推論；並用這些結論對典型的帶限信號進行了分析，證明可分解信號采樣定理與經典采樣理論的一致性；初步探討了對這類信號的實行采樣與恢復的工程實現問題。
  5. Based on the demand of power department, a full distributed multifuncitional monitoring device is studied. this instrument not only can measure the data of hydroelectric plant, but also integrate the funcition of control the dynamotor, by cooperate with the program of epigynous system, it can realization the auto generate electricity on the hydroelectric plant and ordinal startup - stop of the dynamotor. 2 furthermore, performance of integrated dft arithmetic enhances the acturacy and reliability of measure. by communication several devices can run online to be controlled dispersedly and managed centrally

    本文分析了國內外水電站自動控制裝置的研究和發展狀況，尤其是國內小型水電站的自動化現狀，針對現有電力部門的需求，設計並實現了一種單元式的微機自動監控裝置，該裝置不僅實現了對水電站內各種模擬參數和數字信號的實時監測功能，還對水輪發電機組進行了調控，通過與上位機處理程序的配合，可以實現水電站的自動發電控制、機組順序啟停；在測量發電機組機端電壓和電流參數的時候，採用32點離散傅立葉演算法（ dft ） ，增加了測量的準確性和可靠性；通過通訊可以實現裝置的聯網運行，做到「分散控制、集中管理」 。
  6. On real - time speech blind signal separation based on time delay estimation and beamforming

    基於時延估計波束形成預處理的實時語音盲信號分離研究
  7. Each channel has independent synchronization and two powerful digital signal processing chips. one chip performs all the synchronization and sampling computations, while the other does the fast fourier transform of current and voltage signals sampled with 18 bit resolution. both current and voltage have separate but fully synchronized a d waveform capture sections

    就信號分析能力而言， 2503ah系列的最大特點是速度和精度，各通道均獨立同步及擁有兩片數字信號處理器晶元，當一晶元執行全部同步與取樣運算時，另一晶元則為已取樣的電流與電壓信號以真實18位解析度進行速傳立葉變換，電流與電壓具分離但完全同步的a d波形捕捉部份
  8. A blind source separation algorithm by using time - frequency signal analysis

    一種基於時頻分析的盲信號分離演算法
  9. In the second part, we investigate the frequency analysis problem. the freque - ncy analysis problem is to determine the unknown frequency wj when values of x ( m ) ( observations ) are known

    在第二章里討論頻率分析問題。頻率分析問題研究的是通過一組已知的離散時間信號值x （ m ）來決定未知頻率_ j的近似值。
  10. Based on the analysis of the theory, the paper put forward the method of the analysis and design of the sc filter by the discrete time signal method using the basic switch blocks combined with the fabrication convenience, mature technology, low power consumption, higher integrated cmos process

    在理論分析的基礎上，論文提出了結合現在尋求代工方便、技術比較成熟、功耗低、集成度高的cmos工藝技術，利用常用的基本開關模塊，用離散時間信號的方法來分析和實現開關電容濾波器。
  11. To achieve this the sampling clock should be isolated as much as possible from the noise present in the digital parts of the system

    為此，時鐘信號應該盡可能地與電路中強噪聲的部分隔離開，例如數字電路。
  12. Based on it, the ica is studied under instantaneous mixtures and convolutive mixtures blind separation models. the main works are as follows : 1. based on herault - jutten algorithm separating signals blindly, we obtain an algorithm using natural gradient under instantaneous mixtures model. the equivariance property has been discussed too

    以此為基礎，在盲信號分離的瞬時線性混合模型和卷積混合模型下，對獨立分量分析演算法進行了研究，主要工作如下: 1 .在瞬時線性混合模型下，詳細討論了改進h - j演算法。
  13. By studying the discrete fourier transform properties of the band - limited digital signal, the authors introduce alternating projection neural networks into the paper, expand apnn ' s application scope from real field to complex field, and present several important conclusions on apnn. analyzing and discussing network ' s tolerance to noise, convergence rate and the spectral leakage problem of the truncated signal expected to be extrapolated by using these conclusions, the paper presents an extrapolation algorithm for band - limited signals based on alternating projection neural networks. a lot of simulation experiments show that the algorithm is effective. in addition, the algorithm is also effective to spectrum extrapolation. owing to adopting network structure, the algorithm is prone to parallel computation and vlsi design, and consequently can satisfy real time military processing needs

    本文通過對頻帶受限數字信號的離散傅立葉變換特性的研究，引進了交替投影神經網路，並將其應用范圍從實數域拓廣到復數域，且給出了在復數域仍然成立的若干結論.運用這些結論，在對網路噪聲抑制、網路收斂速度及待外推信號因截斷而造成頻譜嚴重外泄問題的分析與討論的基礎上，提出了一種基於交替投影神經網路的外推演算法.模擬實驗表明該方法是行之有效的.另外，該演算法對頻譜外推同樣適用；由於它採用全互連神經網路結構，易於并行計算和vlsi實現，從而可滿足軍事上實時處理的需要
  14. Assigning serial different address code to different subscribers, useful signal is taken out of the same time slot and frequence, and is transmitted with one share channel. at received end, system makes use of completed address code from sending end to do correlative check and take out useful subscriber signal. the other address code signals are treated as broadband disturbing signal which is removed. in radio environment of existing variable disturbtion and muti - way declining, expand frequence signal ’ s broadband characteristics can improve system performance obviously. cdma mobile telecommunication system has some better characteristics, such as anti - disturbing 、 anti - way declining 、 secrecy 、 capacity 、 utilizing rate of frequence resource and so on, than other mobile telecommunication system

    Cdma （ codedivisionmultipleaccess ）移動通信系統的技術基礎是基於擴頻技術的碼分多址，通過給不同的用戶分配各自特定的地址碼序列，將處于相同時隙和頻率的用戶信號分離開來，採用共享通道方式傳輸信息。在接收端，系統利用與發送端完全一致的本地地址碼對接收信號進行相關檢測，提取需要的用戶信號，而將其他使用不同碼型的信號視為寬帶干擾而從中剔除掉。
  15. 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。
  16. Radial basis function neural network ( rbfnn ) is chosen to build predictive model. rbfnn is a special type of neural network linear - in - weight in nature and having nonlinear processing properties. finally, an adaptive filter is applicable to do the followed weak signal extraction work

    接著選用徑向基函數神經網路（ radialbasisneuralnetwork ， rbfnn ）建立混沌時間序列預測模型，徑向基函數神經網路是一種局部逼近的人工神經網路，訓練簡潔而且學習收斂速度快，能夠逼近任意非線性函數，最後將預測誤差送入自適應信號分離器進行處理，檢測出微弱信號。
  17. Contrasting this, in feedback control the most majority of complex systems are controlled using sampled observations of system behavior taken at discrete time instants. thus the resulting controlled systems are hybrid systems, which are called sampled - data systems, involving both continuous - time and discrete - time signals. the investigation of sampled - data systems is motivated primarily due to the widespread use of digitally implemented controller in present - day feedback control of continuous - time systems

    工程實踐中遇到的動態系統通常是連續時間系統，與此相反，大多數復雜系統的反饋控制卻是通過觀察采樣點上的系統行為來進行控制的，結果所得到的反饋控制系統是個混合系統，它含有連續信號和離散信號，這樣的系統稱之為采樣系統，當今連續受控系統中數字控制器的廣泛運用促進了對采樣系統的研究，已有的線性采樣系統理論顯然不能滿足處理非線性采樣系統的需要，因此近年來非線性采樣系統的分析與設計已經成為國際控制論界的持續的研究熱點之一。
  18. Moreover, the identifying and processing software of image is applied for storingextracting object counting the character of object computing errors and so on. at last, the track precision of object can be got. this system not only applies dalsa camera and pc - dig collecting card to ensuring real time of collecting image, but also applies software compiled by vc + + to improving processing speed and flexibility operating convenience

    該系統不僅採用先進的dalsa航空用數字相機和性能優越的pc - dig圖像採集卡，以及低電壓差分信號（ lvds ）的介面模式，用很低的電壓擺幅來保證在相對較短的距離內（ 10 - 15m ）實現高速（ 400mbps ）數據傳輸，從而保證了圖像採集的實時性，同時用vc + +編寫的軟體使圖像處理速度高，靈活性強，操作方便。
  19. But time - frequency domain analysis and artificial intelligence provide the new way to fdi. so in this thesis, after finished the real - time fdi software of srfcs, we will study the new fdi algorithm

    而近年來人工智慧、時頻濾域信號分析等新理論為故障檢測提供了新的途經，為此，本論文在完成故障檢測與隔離實時工程軟體后，將對這些新理論進行研究。
  20. It could collect the position of the welding seam by oscillation, judge whether the welding torch deviated the welding seam by calculation and analysis, and correct the welding torch location in time to ensure high quality in welding

    該傳感器通過擺動將焊縫位置採集出來，通過計算進行信號分析來判斷焊槍是否偏離焊縫位置，以便及時糾正焊槍位置，來保證焊接質量。
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