摘要
根据软件无线电的要求分析了中频信号的带通采样和数字下变频 ,并结合实际讨论了中频信号直接带通采样的原理 ,重点介绍了 HSP50 2 1 4 B数字下变频器的设计方法。提出了一个基于软件无线电的中频信号直接数字化接收解调方案 ,并具体地构造了具实用价值的硬件平台。
This paper designs a digital intermediate frequency receiver based on software radio. It introduces the use of a digital down converter--HSP50214B in detail. The digital IF receiver uses bandpass sampling, and it can carry out many forms of signal receiving effectively only by using the same hardware.
出处
《电子工程师》
2002年第10期55-58,共4页
Electronic Engineer
