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毕业设计(论文)-半双工调频无线对讲机的设计.doc

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南 阳 理 工 学 院 本 科 毕 业 设 计(论文) 半双工调频无线对讲机的设计 Half duplex Design of a FM Radio 学 院: 计算机与信息工程学院 专 业: 通信工程 学 生 姓 名: 任磊 学 号: 067109015 指 导 教 师(职称): 胡念英 评 阅 教 师: 完 成 日 期: 2013年5月 南阳理工学院 Nanyang Institute of Technology 半双工调频无线对讲机的设计 通信工程专业 任磊 [摘 要]随着现在通信技术的日新月异,各种通信设备层出不穷如电话,手机,对讲机等。半双工调频无线对讲机更是在日常生活中发挥着重要的作用,半双工对讲机系统具有使用简单、不受网络限制、通话成本低、适用范围广等优点。它是在鉴频混频等技术的基础上,利用无线电通信原理研发的一种通信方式 本系统的功能在于实现呼叫和通话功能可供小型单位作内部电话用由于采用成品,从而使制作变得很简单,成本也很低本论文最后对对讲机的现状及发展前景进行分析。Half duplex design of a FM radio Communication Engineering Major Abstract: Now with the advances in communication technology,all kinds of communications equipment emerge in endlessly, such as telephone, mobile phone, interphone, etc. A half duplex radio have use wireless call system simple, not affected by network restrictions, call low cost, wide application, etc. It is popularly used in frequency mixing technology, on the basis of using radio communication principle of a kind of communication research. At present, people on the intercom research has from MoNiHua into digital. The function of this system is to realize call and call functions. The characteristics of wireless talkback telephone is available for small units for internal use, moreover due to the telephone finished product, thus make make wireless module becomes very simple, the cost is low. Talkback telephone calls, realized the internal for Peoples Daily life has brought great convenience and deserves further promotion, have very good prospects for development. Electronic technology research is just beginning, as the technology research, involving gradually goes deep research realm will be more widely. Hope this technology research for people later life, work bring greater convenience, to provide people with more comfortable and perfect way of life. This paper finally to intercom current situation and d
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