摘要
提出了一种通用的数字中频软件无线电接收系统的设计及应用方案。该系统可以广泛地应用于各种中频调制信号的采样与解调。文中介绍了系统的总体结构设计 ,并分析了系统设计中的几个关键性技术 :数据采集技术、数字下变频技术、数字信号处理技术和系统同步互连技术。在软件方面 ,主要介绍了数字下变频器的参数设置、接收系统的应用软件设计以及系统核心芯片AD SP2
The design and application of a universal digital IF software radio receiving system is introduced in this paper. This system can be used to sample and demodulate many kinds of IF modulated waves, and its architecture design, some key techniques and software design are presented in detail. The key techniques include data acquisition, digital down converting, digital signal processing and synchronously interconnected technology. In the software design, the parameter setting of digital down converter, the application program of this receiving system and the design of ADSP2191's monitoring program are mainly introduced.
出处
《电子工程师》
2004年第1期36-38,66,共4页
Electronic Engineer
