无线电工程

软件无线电技术在无线通信系统的发展中具有重要的历史地位,其使得无线电通信系统具有很好的通用性和灵活性。高速模数转换(ADC)芯片是模拟信号与数字信号转换的桥梁,ADC在软件无线电系统中占据着重要地位,实现软件无线电的关键之一是解决模数转换问题。EV10AQ190A是E2V公司推出的新型、高速和高性能ADC。基于软线无线电思想,利用高速ADC与FPGA构建的硬件平台,实现了具有广阔应用前景的高速A/D转换系统,给出了软硬件设计原理及程序运行结果。实测结果表明,系统指标达到设计要求,灵活、可靠,具有一定的通用性。

Software defined radio( SDR) is praised as a revolution in the development of wireless communication which can make wireless communication system have good commonality and flexibility.The ADC chip is the conversion bridge between the analog signals and digital signals.The high speed ADC plays an important role in the wireless communication system of SDR,one of the key problems to realize SDR is to solve A / D conversion problem. EV10AQ190 A is a new type,high speed and high performance ADC device introduced by E2 V Company. Based on the idea of SDR,a high speed A / D conversion system based on the hardware platform using high speed ADC and FPGA is implemented,which has a broad application prospects,the principle of hardware and software and some results of program are introduced.The practice proves that the system parameters meet the design requirements.The system is reliable and flexible,and has certain universality.