中国计量大学学报2017，Vol.28Issue(3)：380-387,8.DOI:10.3969/j.issn.2096-2835.2017.03.018
一种基于软件无线电的频谱扫描技术
A spectrum scanning scheme based on software-defined radio
摘要
Abstract
Spectrum scanning is one of the basic techniques employed in the design of radio test instruments .In this paper ,a mixer with variable local oscillator frequency followed by a low pass filter was adopted to acquire data to calculate the sub-bands of the entire spectrum .The sub-band signals are sampled and converted to the frequency domain .The entire spectrum was reconstructed by splicing the sub-bands spectrum .To implement this scheme ,we proposed a software-defined radio platform ,which was composed of a software-defined radio (SDR) receiver and a digital signal processing system on chip (SOC) .Finally ,a radio test set prototype was implemented based on the platform ,which verified the proposed spectrum analysis scheme .Simulations and experiments show that the proposed scheme and the prototype are able to analyze the spectrum within 6GHz span ,with low noise and high dynamic range ,and can also provide the phase spectrum .The proposed scheme and the prototype are suitable for applications in built-in spectrum analyzers and radio test instruments .关键词
频谱分析/子带/软件无线电/无线电综合测试仪Key words
spectrum analysis/sub bands/software-defined radio/radio test set分类
信息技术与安全科学引用本文复制引用
全大英,刘恒良,孔维太,金小萍..一种基于软件无线电的频谱扫描技术[J].中国计量大学学报,2017,28(3):380-387,8.基金项目
浙江省自然科学基金资助项目(No.LY17F010012). （No.LY17F010012）
