我们在滑铁卢站外的信号灯那里停了很长时间。
根据电子攻击信号脉冲与被保护雷达信号脉冲在重叠时间大小以及先后到达顺序上的不断变化,对某一被保护雷达,给出了电子攻击信号源的布站模型。
Based on the changing of the overlap time and the arrival orders of the pulses of EA signal pulse and a certain radar signal pulse, the model of EA emitters is put forwarded.
提出了一种利用平面解三角,并结合辐射源信号到达方向和脉冲到达时间差对运动辐射源进行单站无源定位的算法。
An algorithm used trigonometry to passively locating a moving emitter with direction of arrival (DOA) and time difference of arrival (TDOA) of the emitter signal is given.
加利福尼亚航空站喷气推进实验室在声明中表示,实验室收到最后信号的时间是美国东部时间下午3点43分。
The space agency's Jet Propulsion laboratory in California received the final signal from the spacecraft at 3:43 p. m. EDT, the laboratory said in a statement.
加利福尼亚航空站喷气推进实验室在声明中表示,实验室收到最后信号的时间是美国东部时间下午3点43分。
The space agency's Jet Propulsion laboratory in California received the final signal from the spacecraft at 3:43 p. m. EDT, the laboratory said in a statement.
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