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题名:
Low-power digital receiver structure for multi-speed HART
作者: Jin ZH(金郑华); Wang H(王宏); Yang ZJ(杨志家)
作者部门: 工业信息学研究室
关键词: Multi-Speed HART ; Low-power ; CSD Coded Preset Equalizer ; Synchronizer ; FSK
刊名: International Journal of Digital Content Technology and its Applications
ISSN号: 1975-9339
出版日期: 2011
卷号: 5, 期号:4, 页码:121-130
收录类别: EI
产权排序: 1
摘要: This paper presents a low-power digital receiver structure for multi-speed HART which can adaptively demodulate input signal modulated in non-coherent HART FSK or coherent HART C8PSK. A new kind of CSD coded preset equalizer is introduced according to the characteristic of HART channel distortion. Synchronization is divided into initialization stage and tracking stage. In initialization stage, it attains equilibrium state quickly and reduces tracking computation rate, while in tracking stage, it is time-divided carried out and reduces the computation rate of the equalizer and interpolator. Additionally, a novel algorithm is developed for HART FSK demodulation reusing the resource as HART C8PSK. Power consumption can dramatically decrease, because Multiplications used per one symbol demodulation are dramatically reduced; while simulations show that the proposed structure can convergence fast and work very well in low SNR.
语种: 英语
EI收录号: 20111913969079
内容类型: 期刊论文
URI标识: http://ir.sia.cn/handle/173321/7085
Appears in Collections:工业信息学研究室_期刊论文

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Recommended Citation:
Jin ZH,Wang H,Yang ZJ. Low-power digital receiver structure for multi-speed HART[J]. International Journal of Digital Content Technology and its Applications,2011,5(4):121-130.
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