| 存在相位抖动下 Chirp-UWB信号零中频处理研究 |
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| 引用本文： | 杨元挺,郑继禹. 存在相位抖动下 Chirp-UWB信号零中频处理研究[J]. 桂林电子科技大学学报, 2011, 31(2): 106-110 |
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| 作者姓名： | 杨元挺 郑继禹 |
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| 作者单位： | 福建信息职业技术学院电子工程系;桂林电子科技大学信息与通信学院; |
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| 基金项目： | 国家自然科学基金(60962001); 广西自然科学基金(0731026) |
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| 摘 要： | Chirp-UWB通信技术作为WPAN的无线接人标准而倍受关注,为降低采样率与技术成本,接收时常将GHz频段的Chirp-UWB信号搬移到基带进行匹配滤波或分数阶傅立叶变换(FRFT)处理.通过Chirp信号匹配滤波和FRFT能量聚集效能的简洁推导,分析了零中频变换存在的随机相位抖动对检测性能的影响.为消除频差,提出了...
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| 关 键 词： | 线性调频 超宽带 分数傅立叶变换 锁相环 归载频调制 |
Research on Chirp-UWB Zero-IF signal processing under phase jitter |
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| Yang Yuanting,Zheng Jiyu. Research on Chirp-UWB Zero-IF signal processing under phase jitter[J]. Journal of Guilin University of Electronic Technology, 2011, 31(2): 106-110 |
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| Authors: | Yang Yuanting Zheng Jiyu |
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| Affiliation: | Yang Yuanting1,Zheng Jiyu2 (1.Department of Electronic Engineering,Fujian Polytechnic of Information Technology,Fuzhou 350003,China,2.School of Information and Communication Engineering,Guilin University of Electronic Technology,Guilin 541004,China) |
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| Abstract: | As an optional physical-layer scheme in IEEE 802.15 standard,the chirp based ultra-wideband(Chirp-UWB) gains increasing concern.To decrease the sample rate and processing cost,Chirp-UWB is often shifted from GHz frequency to zero intermediate frequency(Zero-IF) for further detection.The detection performances under phase jitter caused by the shift are deduced for matched-filter receiver and fractional Fourier transform(FRFT) receiver respectively.To remove the carrier error in the shift,a carrier-returning-... |
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| Keywords: | LFM ultra-wideband fractional fourier transform PLL CRCM |
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