cyclic transformation 中文意思是什麼
cyclic transformation
解釋
循環變換- cyclic : adj. 1. 周期的；輪轉的，循環的。2. 【化學】環狀的；【植物；植物學】輪列的，輪卷的。3. 組詩的；故事始末的。
- transformation : n 轉變，變化；變形；【生物學】（尤指昆蟲的）轉化，變態，改造，改革；變質；【數學】變換；【電學】...
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The research is that : after the same cyclic number of loading times, the steel stress of reinforced beams was much smaller than that of common beam ; the deflection of reinforced beams was decreased by 40 % - 50 %, therefore, the anti - transformation of the reinforced beams is enhanced greatly
研究發現：經過相同次數的疲勞荷載作用后，完好加固梁的鋼武漢理工大學碩士學位論文筋應變小於未加固梁，加固梁的變形減少了40 %一50 % ，加固梁的疲勞壽命提高t60 % ~ 80 % 。 -
In the third part, i genelized one theorem of lambert ' s from a hilbert space to a semi - self - conjugate vector space, and some results of reflexivity are attained. in the fourth part, i discussed the algebraic reflexivity of a ( strictly ) cyclic linear transformation on a vector space
1 ，把這個結論從hilbert空間推廣到半自共軛的banach空間，得出一些自反性的結論；第4章討論了線性空間上的（嚴格）循環的線性變換的代數性自反。 -
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。
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