【摘要】 软件无线电中信号的调制与解调是研究的重点问题之一。文章基于希尔伯特变换提出了一种在软件无线电中的数字化快速解调算法,理论分析和仿真结果表明,该解调方案的抗干扰性能有明显改善,与传统解调方法相比,通用性强、简单、计算量小且易于实现,能很好地满足软件无线电中的要求。具有理论意义和实际应用价值。更多还原

【Abstract】 Modulation and demodulation of signal is one of the most important research topics in software radio(SR).Based on Hilbert transform,this paper presents an algorithm for fast digital demodulation in SR.Theoretical analysis and simulation results indicates that noise-resisting property has been improved obviously.Compared with traditional methods,it is all-purpose,simple,and easy in realization with less computation,thus can satisfy the requirements of demodulation algorithm in SR.The algorithm is of theoretical significance and practical value.更多还原