propeller airplane 中文意思是什麼
propeller airplane
解釋
螺旋槳飛機-
Measurement of noise airworthiness verification to the light propeller airplane
小型螺旋槳類飛機的適航噪聲驗證測量方法 -
The propeller of an airplane forces air backward, developing thrust
飛機的螺旋槳迫使空氣向後移動，於是就產生了推力。 -
This paper studies the helicopter, the propeller - driven aircraft and the turbofan jet airplane echo modulating feature parameter model and analyses the echo signal feature. it gains the target echo ’ s the cyclical modulation feature by using the complex ar frequency range bispectrum slice. because traditional method in extraction airborne radar ’ s radiant signal feature time has certain insufficiency, this paper proposes the approximate entropy and the norm entropy as the passive feature parameter in the airplane
由於傳統方法等在提取機載雷達輻射源信號特徵的時候存在著一定的不足，本文提出把近似熵和范數熵作為飛機目標識別的無源特徵參數，給出了提取相應特徵熵的演算法，實現對機載雷達輻射源信號的識別，通過和機載雷達類型的匹配，實現對目標的識別。
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