1) hovering ceiling
悬停升限
2) hover ceiling,static ceiling(of a balloon or a dirigible)
静升限，悬停升限
3) hovering ceiling out of ground effect; hovering ceiling OGE
无地悬停升限
4) hovering ceiling in ground effect; hovering ceiling IGE
有地效悬停升限
5) helicopter hovering
直升机悬停
1.
Aiming at the current status that helicopter uses single torpedo to attack submarine,a method of two torpedoes salvo for helicopter hovering attack is presented.
针对直升机投雷一般采用单雷射击的现状,提出了采用直升机悬停双雷齐射的方法。
6) hovering helicopter
悬停直升机
1.
In this paper, the characteristics of hovering helicopter echo signals are analyzed simply, and the problem to detect hovering helicopter based on the autocorrelation detection method of periodic signal is studied thoroughly and the conclusion is given.
本文简要分析了悬停直升机回波信号的特征,对使用周期性信号自相关检测方法探测悬停直升机的问题作了深入探讨,给出了有关结论。
2.
In this paper, the binary Hough transform is proposed to realize the detector used for detecting a hovering helicopter with multi-scanning period accumulation described in Ref.
为了克服直接Hough变换积累存在的缺点,提出用二值Hough变换法实现文献[1]所述用于悬停直升机检测的多扫描周期积累检测器,说明使用二值Hough变换法的优越性,并对系统的检测性能进行了理论分析和仿真实验验证。
3.
Based on the echo features of a helicopter rotor presented in Reference [1], a new detector is proposed to detect hovering helicopter by using data of multi-scanning periods.
根据文献[1]悬停直升机主旋翼回波信号特点,提出了一种新的多扫描周期积累检测器,研究了用直接Hough变换实现该检测器的具体方案。
补充资料：升限
航空器在规定条件下，靠本身的动力上升能达到的最高飞行高度。分静升限和动升限两类。前者是飞机能进行平飞的最大飞行高度。后者是飞机通过跃升动作所能达到的最高高度。直升机的静升限是垂直上升时，垂直速度和水平速度都等于零时悬停的最高高度；动升限是向前爬升所能达到的最高高度。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条