数字控制相对于模拟控制有很大的优越性，表现在精度高、灵活性大、可靠性好、易于大规模集成等方面。
With the development of computer and information technology, electro-hydraulic technology has transited from analog control mode to digital control mode in the past twenty to thirty years.
对噪声抵抗能力的增强是PWM相对于模拟控制的另外一个优点，而且这也是在某些时候将PWM用于通信的主要原因。
Noise resistance to increasing ability of the PWM is relative to the simulation control another advantage of, and this also is in some time will be the main cause of PWM used for communication.
在虚拟试验场场景中实现了对车辆相对于磁道钉位置的检测模拟，以利于后续自动控制模型的处理。
And testing a vehicle's position related to the line of magnetic marks in the virtual trailing ground is simulated in favor of successive control models.
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