步进电机受脉冲的控制，通过改变通电的顺序可改变电机的旋转方向，改变脉冲的频率可改变电机的旋转速度。
Step motor control, by pulse by changing the order of electricity can change the motor rotation direction, change the pulse frequency can change the motor rotation speed.
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.
所设计的脉冲导向电路较好地解决顺序与逆序互相之间的过渡问题。
The pulse steering circuit so designed solves fairly well the transition between positive sequence and negative sequence.
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