| 1. | An automatic detection method of hovering helicopter
一种悬停直升机的探测方法 |
| 2. | Detection of hovering helicopter with binary hough transform
变换法检测悬停直升机 |
| 3. | Radar detection of hovering helicopter
悬停直升机的雷达探测技术 |
| 4. | Recognition of a hovering helicopter
悬停直升机的识别 |
| 5. | Analysis of simulation of characteristics and detection of echo from hovering helicopter
悬停直升机回波特性与检测仿真分析 |
| 6. | It is very urgent to solve the problem of detecting low - altitude , slow - speed and hovering helicopters
低空慢速、悬停武装直升机的探测是一个迫切需要解决的课题。 |
| 7. | However , a recent task to select a site for a new weather station on lantau island was quite a challenge to me - i had to be winched down from a hovering helicopter
但最近我到大屿山为新气象站选址时，要从盘旋空中的直升机利用吊带登陆山头，却是一项前所未有的挑战。 |
| 8. | However , a recent task to select a site for a new weather station on lantau island was quite a challenge to me - i had to be winched down from a hovering helicopter
但最近我到大屿山为新气象站选址时，要从盘旋空中的直升机利用吊带登陆山头，却是一项前所未有的挑战。 |
| 9. | Abstract : the radar echo of a helicopter rotor is modeled and analyzed theoretically at first , then a new method is proposed to detect hovering helicopter by using low - pass filter and multilevel hypothesis examination
文摘:首先对直升机旋翼的雷达回波进行建模和分析，在此基础上提出一种悬停直升机积累检测新方法即低通滤波和多级假设检验相结合的方法。 |
