基于FPGA和FIFO的信号延时系统设计  

The Design of Signal Delay System Based on FPGA and FIFO

作　　者：唐鹏[1] 吴国安[1] 马晖[1] 

机构地区：[1]华中科技大学,武汉430074

出　　处：《航空电子技术》2009年第3期10-14,共5页Avionics Technology

摘　　要：短波信道模拟器是对短波电台进行测试的重要设备,它能够模拟短波信道的主要特点。结合短波通信的原理介绍了短波多径传输延时效应,提出了一种全新的信号延时的方法。该方法基于FPGA和FIFO,测试结果表明其能满足我们的设计要求。HF wireless communication has been widely used in the military communication. HF Channel Simulator an important testing tool of HF communication equipment, which can simulate the main characteristics of HF channel, such as multi-path, Rayleigh fading and Doppler shift. Based on HF communication theory, the paper introduces the multi-path delay effects, and presents a new signal-delay method. The method is designed based on FPGA and FIFO, and the testing results show it can meet the requirements of design.

关 键 词：多径延时 短波信道模拟器 FPGA FIFO 

分 类 号：TN919[电子电信—通信与信息系统]