摘要
文章首先叙述了数字信道化接收机研究的背景、意义,同时介绍了数字滤波器组与信道划分。然后,提出了基于多相滤波器组的接收机并对其进行了数学建模。最后,通过Matlab对基于多相滤波器组的信道化接收机模型和基于原型低通滤波器的信道化接收机模型实现了4信道的仿真分析,并对它们在时域和频域上做了性能比较。仿真结果验证了两种接收机模型的正确性,通过计算量分析可知,文章所设计的接收机模型相比传统接收机模型计算量大大降低,具有明显的高效性。
Firstly, this paper describes the background and meaning of digital channelized receiver. At the same time, it introduces the digital filter banks and the division of channel. Then the thesis proposes a receiver based on multiphase filter banks, and derives mathematics model of this receiver. Finally, this paper makes a four channels simulation and analysis for receiver based on channelized multiphase filter banks and receiver based on antetype lowpass filter banks by means of MATLAB. It also makes a performance comparison for those two kinds of receivers in the time and frequency domain. The correctness of the two receiver models is verified. But we can find obviously the receiver which this paper designs has higher efficiency than the traditional model via the analysis of account.
作者
力智
胡学龙
LiZhi Hu Xuelong(Yangzhou Communications Equipment Co., Ltd, Yangzhou 225012, China School of Information Engineering, Yangzhou University, Yangzhou 225127, China)
出处
《信息化研究》
2016年第5期49-52,56,共5页
INFORMATIZATION RESEARCH
