摘要
为了客观评价和鉴定各种通信设备,需要营造逼真的宽频带、高密度、多样式的电磁信号环境。基于数据抽取和插值理论,提出了一种并行直接数字合成(DDS)技术。基于并行DDS技术,研究了宽带通信信号模拟方法,可以用来在宽频带范围内模拟复杂的通信信号环境。利用高性能复杂可编程门阵列(FPGA)和高速数模转换器(DAC)实现了16路并行DDS,可直接在射频频段产生各种样式的通信信号。
In order to evaluate all kinds of communication equipment, a kind of realistic wide band, high density, versatile electromagnetic signal environment should be built up. Based on the data extraction and interpolation theory, a parallel direct digital synthesis （DDS） technology was proposed. Based on this parallel DDS technology, a wide band communication signal simulation method was researched, which could be used to simulate the complicated communication signal environment in the wide band spectrum. A 16 channel parallel DDS was implemented by using the high performance FPGA and high speed DAC, which could produce various types of communication signals in the radio frequency band.
出处
《微电子学》
CAS
CSCD
北大核心
2014年第6期789-792,共4页
Microelectronics
基金
湖南省教育厅科学研究资助项目(11C0409)
关键词
并行
直接数字合成技术
抽取
差值
Parallel
Direct digital synthesis technology
Extraction
Interpolation
