基于嵌入式的远程通信信号发生器的设计

Design of remote communication signal generator based on embedded technology

设计远程通信信号发生器实现通信信号的采集、滤波、检波、放大、调制与接收,提出基于嵌入式技术的远程通信信号发生器设计方案。信号发生器主要包括了通信基阵模块、收发转换电路模块、通信信号滤波及检波电路模块、信号放大处理模块、信号调制解调模块以及接收机设计等。采用嵌入式控制器PXI-8155对通信信号发生器的各模块进行串口、并口及GPIB接口的总线设计,实现远程通信信号发生器的嵌入式集成总线优化设计。对信号发生器进行通信信号传输处理分析,实验结果表明,该远程通信信号发生器能有效提高信号的稳定准确传输能力,降低通信信号传输的误比特率。

In order to design the remote communication signal generator to achieve communication signal acquisition, filter- ing, amplification, demodulation, modulation and receiving, a design scheme of the remote communication signal generator based on embedded technology is proposed. The signal generator includes communication basic-array module, transceiver conver- sion circuit module, communication signal filtering and demodulation circuit module, signal amplification processing module, signal modulation and demodulation module, etc. The embedded controller PXI-8155 is adopted to design the bus for serial port, parallel port and GPIB interface of all the modules of the communication signal generator, so as to realize optimization de- sign of embedded integrated bus for the remote communication signal generator. The communication signal transmission analysis of the signal generator is carried out. The experimental results show that the remote communication signal generator can improve the stability and accuracy of signal transmission and reduce the bit error rate of communication signals.