一种改进的数字信道化方法

A Modified Digital Channelized Method

数字信道化接收机要求具有实时分析处理大量数据的能力。设计实现了一种改进型数字信道化信号处理算法,该算法采用先进行数字下变频,后抽取滤波的方法,并利用现场可编程门阵列(FPGA)的并行处理完成了算法设计。给出了关键滤波器的设计,仿真结果验证了算法的有效性。

The digital ehannelized receiver is required to have the ability analyzing and processing a mass of data in real time. This paper designs a modified digital channelized signal processing algorithm. The algorithm uses the method performing digital down conversion before extracting filtering,and uses the parallel processing of field programmable gate array （FPGA） to design the algorithm. The key filter design is given,and the simulation result validates the validity of the proposed algorithm.