| PPM调制的超宽带差分接收机 |
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| 引用本文： | 向新,王勇,易克初,田斌. PPM调制的超宽带差分接收机[J]. 电路与系统学报, 2007, 12(2): 11-15 |
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| 作者姓名： | 向新 王勇 易克初 田斌 |
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| 作者单位： | 1. 西安电子科技大学,综合业务网国家重点实验室,陕西,西安,710071;空军工程大学,工程学院,陕西,西安,710038
2. 西安电子科技大学,综合业务网国家重点实验室,陕西,西安,710071 |
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| 摘 要： | 提出一种PPM-DIFF-UWB调制方式及其接收机,该接收机采用三条具有不同延时特性的相关支路实现PPM-UWB信号的差分接收,提供了一种关于PPM调制的超宽带信号的低复杂度的接收方式,可用于实现在密集多径信道下的多径分集接收,且不需要复杂的信道估计以及发送额外的参考信号.理论分析和实验仿真结果表明该接收机的误码性能优于常规的PPM-TR-UWB接收机.
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| 关 键 词： | 超宽带 差分 脉冲位置调制 误码性能 |
| 文章编号： | 1007-0249（2007）02-0011-05 |
| 收稿时间： | 2006-03-30 |
| 修稿时间： | 2006-06-15 |
A differential receiver for UWB communications with PPM |
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| XIANG Xin,WANG Yong,YI Ke-chu,TIAN Bin. A differential receiver for UWB communications with PPM[J]. Journal of Circuits and Systems, 2007, 12(2): 11-15 |
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| Authors: | XIANG Xin WANG Yong YI Ke-chu TIAN Bin |
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| Abstract: | A PPM-DIFF-UWB modulation scheme and its receiver is proposed, in which the differential reception of the PPM-UWB signal is achieved by employing three coherent branches with different time delays. The receiver offers a low-complexity alternative to PPM-UWB reception and can be used to exploit multipath diversity inherent in wideband channels without the estimation of the channel and extra reference signal. Analysis in theory and simulation results show that the performance of error rate (PER) of the proposed PPM-DIFF-UWB receiver outperforms the traditional PPM-TR-UWB receiver. |
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| Keywords: | UWB differential PPM performance of error rate |
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