调幅系统 meaning in English
amplitude modulation system
Examples
- At the same tune , the paper analyses and discusses the control projects of the above parts . as for the hardware of the control system , on principle of reliability and considering the badly working condition of the vibratory roller , the paper chooses the special controller sp ecializing in the realm of construction machinery ' s control system in order to insure the reliability of the control system and simplify it . about the control quality of the system , the paper establishes the mathematical modes of the frequency modulation system and the amplitude modulation system , analyses the irrationality of the amplitude modulation project , puts forward to apply proportional - integral - differential controller ( pid controller ) to the traveling system and frequency modulation system
作为控制系统的方案设计的基础，本文首先对影响压实效果的振动参数进行了分析；然后针对智能振动压路机的功能要求，将控制系统分为压实参数的自动和手动控制、行走控制、转向和蟹行控制以及智能洒水控制等几个部分，对各部分的控制方案进行了分析对比和论证；在控制系统硬件设计方面，以可靠性为原则，考虑到振动压路机的恶劣工况，选择了专用于工程机械控制领域的专用控制器，使系统的硬件设计得以可靠性保障和简化；针对控制系统控制品质问题，建立了调频和调幅系统的控制模型，对调幅系统的控制不合理性进行了分析，提出采用pid控制器对行走和调频系统进行校正；在软件设计方面，对各个控制部分进行了软件编程流程图设计。