| 用于超宽带通信的简化RAKE接收机 |
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| 引用本文： | 涂春江,刘伯安,陈弘毅.用于超宽带通信的简化RAKE接收机[J].清华大学学报(自然科学版),2006,46(10):1742-1746. |
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| 作者姓名： | 涂春江 刘伯安 陈弘毅 |
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| 作者单位： | 清华大学,微电子学研究所,北京,100084 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 针对直接序列扩频超宽带通信系统中前端电路复杂度较高的问题,设计了一种新的简化RAKE接收机。这种接收机避免在前端接收电路上对每径信号进行的模拟相关运算,将脉冲信号通过接收机做相关运算变换到低频信号之后进行数字处理,从而降低前端电路的硬件规模。论文对简化RAKE接收机的误码率性能进行了理论分析和仿真,结果表明在误码率性能相近情况下,这种简化RAKE接收机的前端硬件规模为传统RAKE接收机的1/16。
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| 关 键 词： | 脉冲调制通信系统 超宽带 RAKE接收机 |
| 文章编号： | 1000-0054(2006)10-1742-05 |
| 修稿时间： | 2005年9月20日 |
Simplified RAKE receiver for ultra-wide band communications |
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| TU Chunjiang,LIU Boan,CHEN Hongyi.Simplified RAKE receiver for ultra-wide band communications[J].Journal of Tsinghua University(Science and Technology),2006,46(10):1742-1746. |
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| Authors: | TU Chunjiang LIU Boan CHEN Hongyi |
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| Abstract: | The front-end circuit for DS-CDMA(direct-sequence code division multiple access) Ultra-wideband communication systems is very complicated.A simplified RAKE receiver was developed which avoids the analog correlation for each finger by moving the finger combination to the back-end digital circuit by using correlation,which simplifies the front-end circuit.Analysis of the bit error rate performance of the simplified RAKE receiver shows that the hardware cost of the receiver is 1/16 of a traditional receiver. |
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| Keywords: | pulse modulation communication system ultra-wideband RAKE receiver |
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