基于Bessel插值的数字正交相干检波器镜频抑制  

Rejection of Mirror Frequency in Digital Quadrature Coherent Detector via Bessel Interpolation

作　　者：彭世蕤[1] 董文峰[1] 杨志国[1] 

机构地区：[1]空军雷达学院微波工程系,武汉430010

出　　处：《电子与信息学报》2004年第5期690-695,共6页Journal of Electronics & Information Technology

摘　　要：该文叙述了两种插值方法实现数字正交相干检波的基本原理,分析了信号流程,重点讨论和比较了两种方法的镜频抑制效果并做了相应仿真,理论分析和仿真结果对于数字正交相干检波的工程实现有一定参考价值。Basic principals of digital quadrature coherent detection are described in this paper via interpolation method. Two implementations are presented, and the signal flow is analysed. The rejection effects to mirror frequencies are discussed and compared emphatically between the two implementations. Computer simulation is carried out. Both the theoretical analysis and simulation results make a good reference to engineering application.

关 键 词：Bessel插值 数字正交相干检波器 镜频抑制 雷达 

分 类 号：TN957.51[电子电信—信号与信息处理]