| 多载波无线电探测器信号波形设计 |
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| 引用本文： | 马岸英,任光亮,田晓东.多载波无线电探测器信号波形设计[J].西北大学学报,2005,35(3):283-286. |
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| 作者姓名： | 马岸英 任光亮 田晓东 |
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| 作者单位： | 西安机电信息研究所 陕西西安710065
(马岸英)，西安电子科技大学通信工程学院 陕西西安710071
(任光亮)，西安电子科技大学通信工程学院 陕西西安710071(田晓东) |
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| 基金项目： | 国防实验室基金资助项目(5145010203DZ0101) |
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| 摘 要： | 目的对正交频分复用多载波探测体制进行发送信号波形优化设计。方法建立发送信号模型,推导出正交频分复用多载波探测信号模糊函数;根据系统性能要求,提出波形设计的两准则;按照两个设计准则,通过计算机仿真进行波形设计与分析。结果实现正交频分复用多载波探测体制发送信号波形优化,设计出满足两个设计准则的优选波形。结论子载波上发送相位编码序列为广义类chirp序列(P4码)、广义多相巴克码的正交频分复用多载波信号具有图钉形的模糊函数,峰均比PAPR<2是多载波探测的优选波形。
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| 关 键 词： | 正交频分复用 模糊函数 峰均比 相位编码 |
| 文章编号： | 1000-274X(2005)03-0283-04 |
| 修稿时间： | 2004年10月10 |
Signal waveform design for multi-carrier radio detector |
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| MA An-ying,REN Guang-liang,TIAN Xiao-dong.Signal waveform design for multi-carrier radio detector[J].Journal of Northwest University(Natural Science Edition),2005,35(3):283-286. |
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| Authors: | MA An-ying REN Guang-liang TIAN Xiao-dong |
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| Affiliation: | MA An-ying~1,REN Guang-liang~2,TIAN Xiao-dong~2 |
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| Abstract: | Aim To realize optimal design of signal waveform for the orthogonal frequency division multiplexing(OFDM) multi-carrier target detection device(TDD).Methods The model and ambiguity function of the transmitting signal of OFDM multi-carrier TDD are set up and derived respectively. According to the performance of TDD, two rules for the signal waveform design are proposed and the signal is designed and analyzed by computer simulation.Results The optimal design of signal waveform for the orthogonal frequency division multiplexing(OFDM) multi-carrier target detection devicd(TDD) was realized.Conclusion The OFDM signals with a generalized chirp-like sequence(P4), a generalized poly-phase barker sequence and a poly-phase Golomb sequence exhibit thumbtack ambiguity function, their peak-to-average power ratios can be maintained below 2, which are the optimal signals for OFDM multi-carrier TDD. |
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| Keywords: | OFDM ambiguity function peak-to-average power ratio phase-coded |
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