doppler distortion 中文意思是什麼
doppler distortion
解釋
多普勒失真- doppler : 多普勒效應
- distortion : n. 1. 歪扭，扭曲。2. 【電學】（信號、波形等的）失真；【物理學】（透鏡成像產生的）畸變；【醫學】扭轉，變形。3. 竄改，歪曲，曲解。adj. -al
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In case where long - range communication is needed, spatial diversity blind equalizer ( sdbe ) is an effective way to improve snr and suppress distortion. joint carrier phase recovery with sdbe using second order digital phase lock loop is presented to track the doppler shift, and a kind of quantization method is used to reduce the complexity of the multi - channel algorithm. its performance is very similar to the original one
模擬結果表明，採用二階數字鎖相環的空間分集均衡演算法的跟蹤性能超過了採用一階鎖相環和未加鎖相環的演算法，可有效補償由於水聲通道時變而引入的載波相位快速變化；採用誤差量化的演算法和原演算法的收斂和踉蹤性能都很接近。 -
Abstract : in this paper, the fundamentals and method of longitudinal displace mentmeasarement utilizing laser doppler effect are introduced. the factors influencing the affecting accuracy are expounded. moreover, the theory analysis and experiment - based methods are offered to improve the accuracy. this study can be applied in analyzing the surface profile and distortion, which is very important in theory and practice for the fields of aviation, mechanical and architecture industries
文摘:介紹了激光多普勒縱向位移測量的基本原理和方法，闡述了影響測量精度的要素，並在理論分析和實驗的基礎上，提出了改進措施.該項研究可應用於分析物體表面輪廓和變形狀況，對航空、機械、建築等工業有重要的理論意義和實用價值 -
In this paper, the fundamentals and method of longitudinal displace mentmeasarement utilizing laser doppler effect are introduced. the factors influencing the affecting accuracy are expounded. moreover, the theory analysis and experiment - based methods are offered to improve the accuracy. this study can be applied in analyzing the surface profile and distortion, which is very important in theory and practice for the fields of aviation, mechanical and architecture industries
介紹了激光多普勒縱向位移測量的基本原理和方法，闡述了影響測量精度的要素，並在理論分析和實驗的基礎上，提出了改進措施.該項研究可應用於分析物體表面輪廓和變形狀況，對航空、機械、建築等工業有重要的理論意義和實用價值
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