软件无线电中的调制解调技术研究

Research of Digital modulation and demodulation Technology in Software-Defined Radio

在软件无线电系统中,采用不同的软件算法来实现不同调制与解调是其核心思想。文章提出了一种适用于软件无线电的数字调制与解调算法,简单介绍了基于DFT的数字化解调技术的实现原理。这种解调算法可以MQAM,π/40PSK等调制信号的解调中应用。

The usage of different modulation and demodulation technology with different software aigodthm is the core idea in Software-Defined Radio system .The paper proposes a kind of modulation and demodulation algorithm used in Software-Defined Radio,ond introduces the theory of digital modulation algorithm based on DFT, which can also be expandad to MQAM,π/4QPSK signal.