一种新型的高速数字调制方式——3PRK

A New High-rate Digital Modulation—3PRK

介绍了一种可应用于微波链路无线传输的新型高速数字调制方式——3PRK,该调制方式使用近似零群时延滤波器滤波,可以在不提高信号功率要求的前提下大幅度提高系统频带利用率,提供高速的数字信息传输。对3PRK的调制方式进行了理论分析,并对关键部件——近似零群时延滤波器进行了探讨。分析结果表明,3PRK数字调制方式是一种具有较高频带利用率,极具价值的新型数字调制技术。

A new high-rate digital modulation named 3PRK for wireless data transmission on microwave links was presented. The near zero group delay filtering was utilized and very high band efficiency and high-rate digital information transmission can be obtained without loss of signal power. The theoretical analysis of 3PRK was conducted and the functions of near zero group delay filter, which is the pivotal component during the modulation and demodulation were discussed. The result shows that 3PRK modulation method is an efficient and valuable digital modulation method.