摘要
高斯频移键控(Gaussian frequency-shifting keying,GFSK)作为一种重要的调制和解调方案,广泛应用于蓝牙、IEEE802.15.4g及各种无线传感网络中;此外,它也被国家电网公司制定的《电力用户用电信息采集系统通信协议》采用,成为智能电网无线电力信息采集系统的关键技术,为全球能源互联网的发展奠定坚实的硬件基础。通过理论推导,提出一种基于反正切的GFSK解调器结构,基于硬件描述语言设计该结构的GFSK解调器,测试结果表明该解调器可抵抗±70 k Hz的频偏,±1 V的直流偏置,以及任意角度的相位偏置。该解调器占用0.513 mm2面积,功耗11.422μW。该GFSK解调器未来可集成到无线电力信息采集系统的So C芯片上,并最终应用于能源互联网体系中。
Gaussian frequency-shifting keying(GFSK), as an important modulation and demodulation scheme, are widely used in bluetooth, IEEE 802.15.4g and various wireless sensor network. Besides, it is adopted by 'Power Information Acquisition System Communication Protocol For Power Consumer' of State Grid Corporation. As a key technique of wireless power information acquisition system in smart grid, GFSK has become a hardware foundation for the development of global energy internet. A structure of GFSK demodulator based on theoretical analysis and arctangent function is proposed. GFSK demodulator circuits are designed by using hardware description language. Test results show that the demodulator can suffer ±70 k Hz frequency offset, ±1 V DC offset and any phase offset. The designed circuits occupy 0.513 mm^2 silicon area and consume 11.422 μW power. The designed GFSK demodulator circuits can be integrated in So C chips for wireless electrical data acquisition system, and finally join into the whole energy internet system.
出处
《智能电网》
2015年第12期1180-1185,共6页
Smart Grid
基金
国家电网公司科技项目(SGRI-WD-81-15-004
SGRI-WD-71-13-014)~~
关键词
高斯频移键控
无线电力信息采集
解调器
电路设计
Gaussian frequency shift keying
wireless power information acquisition
demodulator
circuits design
