数字预失真器OP6180在宏基站中的应用  

Application of Digital Pre-distortion OP6180 in Macro Basestation

作　　者：谭大伦 张海 TAN Da-lun;ZHANG Hai(NEXWISE Intelligence China Ltd.,Guangzhou Guangdong 510663,China)

机构地区：[1]杰创智能科技股份有限公司,广东广州510663

出　　处：《通信技术》2019年第6期1534-1540,共7页Communications Technology

摘　　要：数字预失真技术的高性能、低成本、低复杂度和可移植性的特点被广泛用于无线通信宏基站系统中。Optichron公司的OP6180数字预失真处理器将峰均比抑制技术与数字预失真技术相结合,使得整个系统扩大射频功率放大器的线性工作范围,改善无线基础设备的效率和信号品质。OP6180支持2G、3G和4G通信,为高效率高线性Doherty类功放提供了解决方案,使得ACPR可获得30dB左右的改进。介绍了OP6180的系统框架及工作原理,并提供了实际应用中相关的软硬件设计。实测结果表明,OP6180对消效果明显,性能稳定,具有很好的实用价值。The high performance,low cost,low complexity and portability of digital pre-distortion technology are widely used in wireless communication macro basestation systems.Optichron's OP6180 digital pre-distortion processor combines peak-to-average ratio suppression with digital pre-distortion technology,enabling the entire system to extend the linear operating range of RF power amplifiers,improving the efficiency and signal quality of wireless infrastructure.The OP6180 supports 2G,3G,and 4G communications,providing a solution for high-efficiency,high-linearity Doherty-type power amplifiers,enabling ACPR to achieve improvements of around 30 dB.The system framework and working principle of OP6180 are introduced,and the related software and hardware design in practical application is provided.The measured results indicate that OP6180 has obvious effect on cancellation and stable performance,and has good practical value.

关 键 词：数字预失真 DPD训练 OP6180 宏基站 

分 类 号：TN722.75[电子电信—电路与系统]