- 螺旋槳帶動(dòng)的
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propeller-driven中文什么意思
例句與用法
- Compared with jet planes and propeller - driven aircrafts , the radar echoes of helicopters have different characteristics
與噴氣式飛機(jī)和螺旋槳飛機(jī)相比，直升機(jī)的雷達(dá)回波具有不同的特點(diǎn)。 - She and other engineers are toying with lighter materials and some are pondering ideas as radical as returning to propeller - driven planes as an eco - friendly alternative to passenger jets
她和一些工程師們正打算使用一些更輕巧的材料，另一些工程師們則考慮重新啟用螺旋槳飛機(jī)，用作生態(tài)環(huán)保的客機(jī)。 - In addition , the characteristics of radar echoes from propeller - driven aircrafts are discussed . trough experiments the modulation effect of propeller echoes , its influence , the relationship between its influence and other factors are analyzed
通過(guò)試驗(yàn)分析了螺旋槳子回波的調(diào)制作用，并研究了螺旋槳子回波的影響大小，分析了影響大小與各種因素的關(guān)系。 - To learn about the characteristics of the radar target data is a prerequisite to ratr . so this dissertation process a lot of measured and simulated data , and make a detailed analysis on the characteristics of the radar echoes from jet planes , propeller - driven aircrafts and helicopters . the results can be used in ratr and lay the foundations for the future research
進(jìn)行目標(biāo)識(shí)別必須對(duì)獲得的目標(biāo)數(shù)據(jù)特性有充分的了解，本文正是在這樣的研究背景下，使用大量的實(shí)測(cè)和仿真數(shù)據(jù)，詳細(xì)分析了噴氣式、螺旋槳和直升機(jī)三類飛機(jī)目標(biāo)的雷達(dá)回波特性，得到了一系列對(duì)目標(biāo)識(shí)別有用的結(jié)果，為進(jìn)一步的目標(biāo)識(shí)別工作打下基礎(chǔ)。 - 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
由于傳統(tǒng)方法等在提取機(jī)載雷達(dá)輻射源信號(hào)特征的時(shí)候存在著一定的不足,本文提出把近似熵和范數(shù)熵作為飛機(jī)目標(biāo)識(shí)別的無(wú)源特征參數(shù),給出了提取相應(yīng)特征熵的算法,實(shí)現(xiàn)對(duì)機(jī)載雷達(dá)輻射源信號(hào)的識(shí)別,通過(guò)和機(jī)載雷達(dá)類型的匹配,實(shí)現(xiàn)對(duì)目標(biāo)的識(shí)別。