摘要
短波通信的频率范围在3MHz到30MHz之间,具有信道带宽小,信道个数多的特点。传统的接收机,一般只能同时接收较少的信道个数。随着软件无线电技术的发展,利用高速数字采样和信号处理技术,可实现多信道的同时接收,且可达到较高的接收灵敏度。本文提出一种多通道数字信道化接收机方案,可实现对短波波段信号的直接采样,并利用信道化技术实现频带内任意频点信号的接收。
The frequency range of shortwave communication is from 3MHz to 30MHz. This kind of communication mode has the feature of narrow bandwidth and large channel number. The traditional receiver cannot receive multiple channels at the same time. But with the development of software radio, high speed digital sampling and digital signal processing technology, we can realize the multi-channel receiver and achieve high sensitivity. This paper presents a multi-channel digital channelized receiver scheme which can realize the direct sampling of the shortwave band signals and realize the receiving of arbitrary frequency signal frequency band by use of channel technology.
出处
《价值工程》
2014年第28期221-222,共2页
Value Engineering
