interpolation channel 中文意思是什麼

interpolation channel 解釋
同聲傳譯通道
  • interpolation : 補入
  • channel : n 1 水路，水道，渠，溝；海峽；河床，河底。2 （柱等的）槽，凹縫；【機械工程】槽鐵，凹形鐵。3 〈比...
  1. In this thesis, several approaches are studied, including optimal parametric feedforward estimation of fading channels, basis expansion for estimation and equalization of channels, channel estimation based on pilot and data traffic channels and channel estimation using linear interpolation

    針對這個問題，本文研究了各種時變衰落移動通信通道的估計與均衡的方法，包括非盲估計的方法、線性內插的方法、基展開的非盲方法和衰落通道最優前饋參數估計的方法。
  2. Frequency - domain equalization. at the same time discusses some key problems in ofdm : high ratio of peak - to - average power of output signals, problem of synchronization, channel estimation, adaptive bit, power and subcarrier allocation. emphasize on channel estimation, and present a new algorithm which can filtering more interpolation errors and noise. for the sake of improve the performance of resist narrowband noise and make efficient use of the spectrum apply malvar wavelet division

    同時就ofdm系統中的一些關鍵問題如峰值平均功率比（ papr ）太高，同步問題，通道估計，通道、比特與功率必須動態分配進行了研究，著重研究了通道估計問題並提出一種改進的方法，能濾除更多的噪聲分量和插值誤差，提高系統的性能；為了提高抗窄帶噪聲的性能和提高通道利用率，用malvar小波變換實現了不等帶寬分配。
  3. This paper introduces a bispectrum - based channel estimation algorithm to improve the accuracy of the channel estimation at pilots and proposes an equalization method with the view of the reduction of the interpolation error

    為了提高通道估計的精度，本文分別從提高導頻處通道估計精度和減小插值誤差的角度出發提出了基於導頻雙譜的通道估計演算法和基於變換域濾波的插值方法。
  4. Secondly, the dissertation proposes a novel blind symbol - timing scheme for ofdm systems based on cyclostationarity feature of received symbols. the proposed schemes also exploits the periodicity of ofdm symbol introduced by cyclic prefix, by applying 2 - dimentional fourier transformation and choosing the appropriate correlation peak value as the symbol start location, the precision of this scheme is higher than previous conventional method. thirdly, the dissertation presents analysis with regard to channel estimation of ofdm systems. several interpolation algorithm in ofdm systems which based on pilot sequence have been analyzed in the first instance, and the influence of the channel noise on interpolation precision has discussed. the theoretic analysis and simulation results show that : the interpolation error induced by the precision of interpolation procedure itself has out weight

    第三，論文在ofdm系統的通道估計方面，先對基於導頻的ofdm通道估計中的多種插值方法進行了分析，討論了噪聲對插值精度的影響，指出插值本身的精度所造成的插值誤差遠大於噪聲所帶來的插值誤差，從而階次更高的插值演算法在實用中並非最優的;並指出插值濾波法比變采樣率演算法對噪聲的影響更為敏感，在信噪比較高時插值濾波演算法比變采樣率演算法更優。
  5. To overcome the affection of ici and awgn on the ls estimate of the transfer function at pilot tones, the proposed bispectrum - based channel estimation algorithm employ the suppression of ici and awgn components in the received pilot signals by bispectrum and then the accuracy of the estimation is improved. with the channel estimation at pilot tones, an efficient interpolation is necessary. an improved interpolation method based on transform - domain filtering is proposed, which employs dft / idft and filtering in a transform domain so that the effect of noise on the equalization is significantly reduced

    針對導頻處通道傳遞函數的ls估計中存在載波間干擾和加性高斯白噪聲的影響的這一問題，本文將傳統的ls估計方法與雙譜相結合提出了一種新型的基於導頻雙譜通道估計演算法，它利用了雙譜對高斯噪聲的抑制作用來減小接收到的導頻信號中的載波間干擾和加性高斯白噪聲的影響，從而提高了導頻子載波上通道估計的精度。
  6. Chapter three provides synchronization algorithms in dvb - t cofdm receiver, including symbol timing recovery, carrier frequency error estimation and sampling timing recovery. chapter four introduces some channel estimation algorithms based on interpolation in dvb - t receiver. five estimators are compared, in terms of mean - squared error both in rayleigh channel and ricean channel

    第三章首先討論了由於載波頻率偏差、符號定時偏差和采樣定時偏差對ofdm系統所造成的影響和干擾，然後針對dvb - t系統的cofdm接收機方案，分別給出了符號定時同步、頻率同步以及采樣鐘同步的實現演算法，並對它們的性能進行了分析模擬。
  7. Channel estimation is divided into ls estimation at pilot tones and the interpolation of the preliminary estimate

    通道估計分為對導頻處通道傳遞函數的估計和對該初步估計的插值。
  8. Defines settings for the alpha channel selector operand for triadic multiply, add, and linear interpolation operations identified by the

    為三則運算（乘、加和線性插補）的alpha通道選擇器操作數定義設置，該操作數由
  9. Then influence on performance of systems resulted from parameter non - synchronization and error from channel estimation are investigated respectively. in the section for channel estimation algorithms based on pilot assisted, the existing algorithms including wiener filtering in the sense of mmse and interpolation filtering in the sense of ls are summarized systemically, emphasis is on the discussion of two - dimensional and separated two one - dimensional wiener interpolation filtering

    然後在基於導頻輔助通道估計演算法中，總結了基於不同導頻結構的現有演算法，包括mmse意義下的維納濾波、 ls意義下的插值濾波等演算法，重點討論了2d維納內插濾波演算法和2 1d維納內插濾波演算法，並分析各種演算法的性能。
  10. To estimate the channel well, we introduced a pilot signal aided modulation ( psam ) technology, and utilize certain interpolation way to get the statistical effect of channel, hence afford loss compensation for signal demodulation

    為解決通道估算的問題，本課題引入導頻信號輔助調制，應用一定的插值法，得到通道的統計特性，對信號解調進行衰落補償。
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