摘要
无线频谱测量接收机要求具有对宽带频谱的快速扫描功能,和对特定目标信号的实时高分辨率频谱分析能力;采用软件无线电的设计思想,通过分离的数字下变频通道分别处理扫频信号和谱分析目标信号,达到了11GHz/s的扫频速度和0.2Hz的频谱分辨率;给出了实用的接收机实现方案,并通过实现结果验证了方案的有效性。
Radio spectrum measurement is an important application in the radio spectrum management field. Radio spectrum measurement demands for fast spectrum scanning speed, and high spectrum resolution on the wireless spectral target. We propose a realistic digital down-conversion scheme for this purpose herein, Using separate down-converter for signal scanning and signal analysis, which can exceed a spectrum scanning speed of llGHz/s and resolution of 0.2Hz. The implementation results show that this design scheme is effective.
出处
《计算机测量与控制》
CSCD
2007年第12期1822-1823,共2页
Computer Measurement &Control
关键词
无线频谱测量
数字下变频
软件无线电
radio spectrum measurement
digital down converter software radio
