带宽准匹配的高灵敏度数字信道化接收机

Bandwidth Farthest Matching for High Receiving Sensitivity in Digital Channelized Receiver

提出一种通过多级检测和综合分析实现可变带宽数字信道化接收机的方法.设计了该数字信道化接收机的实现原理和具体工作流程,对系统硬件实现框架及软硬件体系结构的建立进行了讨论.针对数字信道化接收技术实现中信道宽度和接收机灵敏度之间存在的矛盾,使用该方法进行了具体的参数设计.研究结果表明,该方法可对多种带宽信号实现与其带宽对应的准匹配接收,最大程度地提高信号检测灵敏度.

A new technique for bandwidth changeable digital channelized receiver based on multiple detection stages and integration analysis is proposed.The principle of realization and concrete operation flow are designed.The hardware and software construction framework of the system is also discussed.For the incompatible character between bandwidth of sub-channels and receiving sensitivity in a digital channelized receiver,corresponding parameters of the method are designed.Analysis results showed that this method can realize farthest bandwidth matching for signals with different bandwidth,and improve the receiver sensitivity to the greatest extent.