短波数字接收机中频响校正方案的研究与实现  

Research and realization of a frequency response calibration scheme in HF digitized receiver

作　　者：邱昊[1] 高俊[1] 屈晓旭[1] 李少龙[1] 

机构地区：[1]海军工程大学电子工程学院,湖北武汉430033

出　　处：《电子技术应用》2012年第6期58-60,64,共4页Application of Electronic Technique

摘　　要：针对短波通信系统射频前端模拟滤波器存在的非理想特性,设计了一种基于频率抽样理论的校正方案。该方案由抽样值测量、抽头系数计算及滤波等部分组成。对该设计的理论基础做了详细的描述,并对应用于实际接收系统中的测量结果进行了分析说明。A calibration scheme based on theory of frequency sampling was proposed to compensate the non-idea characteris- tics of analog filter in RF front-end. Theoretical basis of two modules in this scheme were discussed, namely the measurement of sample values and calculation of tap coefficients. At last, analysis of actual system experimental result was given.

关 键 词：频率抽样 短波数字化接收机 FIR数字滤波器 频响补偿 

分 类 号：TN924[电子电信—通信与信息系统]