无线收发系统设计

无线收发系统设计

摘要

在有线数据传输方式之中，数据的传输载体是双绞线、光纤或同轴电缆。其实，数据传输也可以用无线传输方式进行传输，即通过空气或真空实现数据传送。与传统的有线数据传输方式比较，无线传输方式不用担心传输线缆的安装问题，从而节省了很多线缆，降低施工难度和系统成本。

伴随着数字通信技术和超大规模集成电路的迅速发展，无线收发系统已经成为了一种发展趋势在各个领域当中已经得到广泛应用，无线收发系统具有成本很低、不需要电缆、应用环境不受限制、组态灵活等优点，这就使无线收发技术得到了很大的发展空间。把数字通信技术和高性能、高集成度的集成电路应用到无线收发技术中，使无线收发技术的性能更加完善，更加可靠。本次设计介绍了一种用三态编解码芯片MC145026/MC145027和无线收/发模块来实现的无线收发系统的构成原理和实现方法，给出了单片机AT89C51与编/解码器之间的无线收发问题的解决方案等，叙述了系统的总体组成原理及仿真。

关键词:无线收发单片机AT98C51 芯片MC145026/MC145027

Design of wireless transceiver system

Abstract

Among the wired data transmission, data transmission carrier is twisted pair, optical fiber or coaxial cable. In fact, the data transmission can also be transmitted by wireless transmission, i.e. data transmitted through air or vacuum. Compared with the traditional wired data transmission, wireless transmission without worrying about transmission cable installation, which saves a lot of cables, reducing system cost and difficulty of construction.

With the rapid development of digital communications technology and ultra large scale integrated circuits, wireless transceiver system has become a trend in which has been widely used in various fields, with a very low cost wireless transceiver system, no cable, unrestricted application environment flexible configuration, etc., which makes wireless transceiver technology has much room for development. Digital communications technology and high-performance, highly integrated radio transceiver IC application technologies to enable the performance of the wireless transceiver technology better and more reliable. The constitution describes the design principles and implementation of a three-state codec chip MC145026/MC145027 and wireless transmit / receive modules used to implement wireless transceiver system, gives the wireless transceiver and microcontroller AT89C51 encoder / decoder between solutions to problems, and describes the overall composition theory and simulation system.

Keywords: wireless transceiver SCM AT98C51 Chip MC145026/MC145027

前言..................................................................... IV 1单片机技术概论 (1)

1.1概述 (1)

1.1.1单片机的产生与发展 (1)

1.1.2单片机的应用 (2)

1.2 AT89C51单片机的基本结构 (2)

1.2.1 AT89C51单片机系列 (2)

1.2.2 AT89C51单片机内部结构及功能部件 (3)

1.2.3 AT89C51单片机外部引脚功能说明 (3)

2无线收发技术概论 (6)

2.1无线收发技术及应用 (6)

2.1.1无线收发技术现状 (6)

2.1.2无线收发系统的发展过程及应用 (6)

2.2无线收发模块 (6)

2.2.1 编/解码模块 (6)

2.2.2无线收发/模块 (7)

2.3编码解码芯片 (7)

2.3.1传感器的选择 (7)

2.4 M145027接收程序设计 (8)

3系统硬件设计 (10)

3.1系统组成 (10)

3.2发射端电路 (10)

3.3接收端电路 (11)

4系统软件设计 (12)

4.1总体结构 (12)

4.2仿真测试 (12)

总结 (13)

附件程序代码 (14)

参考文献 (16)

谢辞 (17)