track distortion 中文意思是什麼
track distortion
解釋
磁軌畸變- track : vt 用纖拉船。vi 拉纖行駛。n age 拉纖。n er 拉纖的人。n 1 軌跡，輪跡，航跡，痕跡；〈pl 〉足跡。2 ...
- 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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The edge of a group of blood is visible and easy to track. there is little distortion of the shape of a group of blood between two frames. there are many methods to measure blood velocity such as optical flow techniques [ 40, 44, 45 ], using fluorescent images [ 42 ], template matching method [ 17 ] and so on [ 43 ]
大血管的情況復雜一些，第一類血管的血液和周圍的組織都很復雜（見圖3 . 1 ） ，這類血管有些血液和組織還很相似，特徵是流速比較低，細胞團塊邊緣清晰，在一定時間內的形變較小，本文用模板匹配法，較好的測量出這類血液的流速。 -
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。
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