Backward Compatible Receiver Structure for C8PSK HART
This paper presents a low-complexity C8PSK HART receiver structure that can adaptively demodulate input signal modulated in non-coherent HART FSK or coherent HART C8PSK. Spectrum leakage and barrier effect, which are defects of windowed DFT when used to analyze signal spectrum, are employed to perfectly solve both problems of channel estimation and signal identification. In order to lower power consumption of the receiver, a novel algorithm is developed for DART FSK demodulation, reusing the resource of HART C8PSK demodulator. Simulations have shown that the proposed structure can work very well in low SNR.
C8PSK HART adaptive demodulation signal identification FSK 8PSK
Jin Zhenghua Wang Hong Yang Zhijia
Graduate School Chinese Academy of Sciences Beijing 10039, China Shenyang Institute of Automation Ch Shenyang Institute of Automation Chinese Academy of Sciences Liaoning Shenyang 110016, China
国际会议
成都
英文
414-417
2010-07-07（万方平台首次上网日期，不代表论文的发表时间）