| 一种用于低功耗低成本的IEEE802.15.4接收器的新颖解调算法 |
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| 引用本文： | 孟新, 肖时茂, 于云丰, 马成炎, 叶甜春, 殷明,.一种用于低功耗低成本的IEEE802.15.4接收器的新颖解调算法[J].电子器件,2008,31(4). |
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| 作者姓名： | 孟新 肖时茂 于云丰 马成炎 叶甜春 殷明 |
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| 作者单位： | 中国科学院微电子研究所,北京,100029;杭州中科微电子有限公司,杭州,310053 |
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| 基金项目： | 浙江省重大科技项目软件与集成电路专项 |
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| 摘 要： | 提出了一种基于低中频、适用于ISM2.4 GHz频段ZigBee接收机的新型解调算法,满足IEEE802.15.4标准.作为数字相位解调,本算法采用相位差分、频率补偿和符号恢复,不用分别恢复出I路和Q路的码序列,而直接提取出相位斜率码,恢复出符号,从而简化了解调结构、降低了功耗和成本.通过与零中频过零检测算法的比较,本算法具有更低复杂度,更好的误符号率和误包率,完全满足IEEE802.15.4/ZigBeeTM标准的要求.
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| 关 键 词： | 相位差分 频率补偿 符号恢复 IEEE 802.15.4 |
A Novel Demodulation Algorithm for Low-Cost Low-Power IEEE802.15.4 Receiver |
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| MENG Xin,XIAO Shi-mao,YU Yun-feng,MA Cheng-yan,YE Tian-chun,YIN Ming.A Novel Demodulation Algorithm for Low-Cost Low-Power IEEE802.15.4 Receiver[J].Journal of Electron Devices,2008,31(4). |
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| Authors: | MENG Xin XIAO Shi-mao YU Yun-feng MA Cheng-yan YE Tian-chun YIN Ming |
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| Affiliation: | MENG Xin1,XIAO Shi-mao1,YU Yun-feng1,MA Cheng-yan2,YE Tian-chun1,YIN Ming2 1.Institute of Microelectronics of Chinese Academy of Sciences,Beijing 100029,China,2.Hangzhou Zhongke Microelectronics Co.,Ltd,Hangzhou 310053 |
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| Abstract: | A novel demodulation algorithm for IEEE 802.15.4/ZigBeeTM low-IF receiver was presented,which was designed for ISM 2.4 GHz band.As a digital phase demodulation,the algorithm adopts phase differentiation,frequency compensation and symbols recovery to directly extract bits stream from phase slope and recover symbols rather than recover each I or Q sequence,resulting in simple structure,low power and low cost.The comparison between traditional Zero Intermediate-Frequency Zero-Crossing Demodulation algorithm(ZI... |
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| Keywords: | IEEE 802 15 4 phase differentiation frequency compensation symbol recovery IEEE 802 15 4 |
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