相干信號 的英文怎麼說

中文拼音 [xiānggānxìnháo]
相干信號 英文
coherent signal
  • 相 : 相Ⅰ名詞1 （相貌; 外貌） looks; appearance 2 （坐、立等的姿態） bearing; posture 3 [物理學] （相位...
  • 干 : 干Ⅰ名詞1 （事物的主體或 重要部分） trunk; main part 2 （幹部的簡稱） short for cadre Ⅱ動詞1 （做...
  • 號 : 號Ⅰ名1 （名稱） name 2 （別號; 字） assumed name; alternative name3 （商店） business house 4 （...
  • 相干 : 1 （多用於否定句或疑問句） have to do with; be concerned with 2 [物理學] coherent; 相干散射 coher...
  1. Initial growths of disturbances are measured by means of hot - wire anemometry. due to the detected signals with low signal to noise ratio, the coherence function is used to eliminate background noise during data reduction

    在擾動增長的初始階段，信號的信噪比非常地低，根據相關譜分析方法，應用相干函數，將擾動信號有效地提取出來，測量了初始擾動的增長。
  2. Non - coherent demodulation of bpsk signal based on time measuring

    信號非相干解調方法
  3. The 2 - d null preprocessing music algorithm for wide - band signals with uniform circular arrays

    一種基於四階累積量的相干信號測向演算法
  4. There are mainly two type of algorithms used for spatial spectrum estimation : one is those based on bayesian maximum likelihood method, like the ml ( maximum likelihood ) algorithm, maximum entropy method and etc., the others are based on the spatial decomposition or projection of correlation matrix, this kind of algorithm include vector characterization method, music ( multiple signal classification ) algorithm, projection matrix method, etc. music is a classical spatial spectrum estimation algorithm that has a super high resolution and is widely used today, however, it cannot estimate doa of signals that are correlated

    空間譜估計的演算法大致分兩大類:一是基於極大似然估計和最大后驗概率估計統計理論的演算法，包括:極大似然估計法（ ml ） 、最大熵法等;另一類是基於對協方差矩陣進行子空間分解或投影的演算法，包括:矢量特徵法、多重信號分類法（ music ） 、投影矩陣法等。其中， music法是一種經典的空間譜估計主流演算法，具有超強的分辨性能，但它無法實現對相干信號進行測向分辨。
  5. Optimum beamforming for coherent signals

    存在相干信號時的最優波束形成
  6. Beamforming of coherent signals based on uniform circular array

    基於均勻圓陣的相干信號波束形成方法
  7. A robust optimum beamforming algorithm for coherent signals

    一種存在相干信號時的穩健的最優波束形成演算法
  8. New beamforming for coherent signals in the presence of uncorrelated interferences

    一種能有效接收相干信號的波束形成技術
  9. Direction of arrival estimation of wide band sources with small array based on beam - space coherent signal - subspace method

    基於波束域相干信號子空間法的寬帶源小尺度基陣定向
  10. The ml algorithm can be used for the doa estimation of correlated signals, but it has a huge computational load

    極大似然估計演算法能夠對相干信號源進行測向估計，但其運算量過于龐大，阻礙演算法在實踐中的應用。
  11. 3. the typical wideband high - resolution method - the coherent signal subspace method ( cssm ) is studied

    研究了寬帶高分辨陣列信號處理的典型演算法? ?相干信號子空間演算法（ cssm ： coherentsignalsubspacemethod ） 。
  12. However, as to correlated especially coherent signals and adjacent signals with small signal to noise ratio ( snr ), music algorithm cannot estimate their doa

    然而，對于相關信號（特別是相干信號）以及相隔比較近的小信噪比信號， music演算法卻分辨不了它們的doa 。
  13. In this paper, we have presented a modified music algorithm, which can estimate the doa of coherent signals and adjacent signals with small snr effectively

    本文提出的是一種修正過的music演算法，該演算法能有效的估計出相干信號以及相隔比較近的小信噪比信號的doa 。
  14. Fortunately, we can solve this problem by using ap ( alternating projection ) algorithm, by this way ; the computational load can reduce dramatically. doa estimation is mostly research base on linear array, because of the limitation of linear, it can estimate the azimuth only ; solid array can estimate the azimuth and elevation, in this paper, the solid array is used for doa estimation ; when the signal sources are uncorrelated, the music algorithm is chosen, using mdl / aic algorithm, we attain the signal number of sources

    本文採用立體六元陣進行測向，在非相干信號源條件下，採用music演算法進行doa估計，採用基於信息論原理mdl準則或者aic準則判斷信號源數目，通過對陣列流形的研究，指出基於圓陣的陣列流形具有的某種對稱性，利用該對稱性來降低運算量，並且通過對演算法的研究，提出用維數較小的信號子空間或噪聲子空間來計算空間譜，進一步減小music演算法運算量。
  15. With the method of integral within ordered product of operators, we obtain the analytical expression of quantum information counterpart of mutual information. the coherent information, as a function of input thermal state power and thermal noise channel power, we discuss the upper and lower bound for quantum gaussian channel introduced by holevo - werner and by quantum codes

    用正規乘積內的算符積分技術求出了互信息的量子對應物? ?相干信息用輸入熱噪聲信號功率和通道熱噪聲功率表示的公式。討論了由holevo和werner引入的量子高斯通道量子容量的上界及由量子編碼所確定的下界。
  16. 4 put forward the modified music algorithm, and compare its resolution ability with music algorithm by computer simulation. the comparison results show that the modified music algorithm not can estimate the doa of signals " that music algorithm cannot, but also can improve the estimation performance when estimating uncorrelated signals " doa

    四介紹修正music演算法，先從公式進行推導，然後再進行計算機模擬，並與music演算法的模擬結果相比較，從而說明修正music演算法不僅能估計出空間互不相關信號的doa ，還能有效估計出相干信號以及相隔比較近的小信噪比信號doa 。
  17. From the objects recognition tests buried in strong noise background, we found even with the ann post - processing technique, a certain amount of recognition errors ( about 10 % ) were still unavoidable

    通過對處于復雜背景噪聲干擾中的目標的識別測試發現，即使採用ann相關信號后處理技術， opr系統仍會存在一定程度的誤識別（ 10 ） 。
  18. From the disser tation, it is noted that smart antenna can effectively deal with mobile communication signals such as coherent signals, non - gaussian signals and multipath signals, etc

    通過本文的研究，實現了智能天線對接近現實的相干信號源、非高斯信號源、經多徑通道傳輸后等情況下信號的有效處理。
  19. However, when the system sample number and the number of antenna array elements are finite, or snr is low and the incident signals are correlated or coherent, the performance of the algorithm sharply decreases and the algorithm even becomes invalid

    但是當系統樣本數、天線陣元數有限，信噪比較低以及入射信號為相關或相干信號時，演算法性能急劇下降甚至失效。
  20. 2 a mathematical model of the reflected signal based on the frequency modulation continuous wave ( fmcw ) radar, solving the frequency - azimuth estimation of coherent signals by spatial smoothing technology, comparing the resolution of the object based on two - dim music method and that based on two - dim fft

    2討論了在接收dbf條件下，回波信號的二維譜估計技術。建立了基於調頻連續波體制雷達下回波信號的數學模型，並將空間平滑技術推廣到時-空二維譜估計，解決了相干信號源的頻率-方位估計問題。
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