调频系统 meaning in English
frequency modulation system
frequency-modulated system
Examples
- Recommended methods of measurement on receivers for television broadcast transmissions - part 4 : electrical measurements on multichannel sound television receivers using the two - carrier fm - system
电视广播接收机的推荐测量方法.第4部分:使用双载波调频系统多声道电视接收机的电气性能测量 - Persons with physical handicaps : improve the access and related facilities in church , service building , retreat houses , pastoral centres and all church organizations for those with disabilities , e . g . construction of slopes , elevators , toilets for people with disabilities , braille bibles , hymn books and parish newsletters , earphones for the hearing impaired to listen to homilies during mass and sign language interpreter during liturgies
伤残人士：改善通道及有关设施，以加强伤残人士对社会的参与，例如：圣堂服务大楼避静所牧民中心以及各教会机构应提供伤残人士适用的通道及设施斜路凹凸纹胶条的路面凸点字标记可供轮椅出入的升降机洗手间凸字圣经歌书堂区通讯以及为弱听人士而设的耳机系统辅助神父讲道的无线调频系统等。 - 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。