| 超宽带汽车防撞雷达的设计 |
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| 引用本文： | 王治国,李熹,郭德淳,费元春. 超宽带汽车防撞雷达的设计[J]. 现代雷达, 2007, 29(4): 20-23,27 |
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| 作者姓名： | 王治国 李熹 郭德淳 费元春 |
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| 作者单位： | 北京理工大学信息科学技术学院,北京,100081 |
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| 摘 要： | 将超宽带技术引入汽车防撞雷达领域。介绍了超宽带汽车防撞雷达对发射信号的要求，给出完整的系统框图和说明，介绍了通过PCI7300A数据采集卡对AD转换后的回波信号进行实时采集，并对采集到的数据进行时域处理的具体过程。重点提出了利用回波位置进行目标识别，以及利用3根接收天线来测角的新方法。针对汽车防撞的使用环境，只对存在相对运动的目标进行检测，从而降低了信号处理的难度，提高了图像的刷新率。
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| 关 键 词： | 超宽带雷达 汽车防撞 数据采集 时域信号处理 |
| 修稿时间： | 2006-11-082007-02-27 |
Design of Ultra Wide-band Automobile Anti-collision Radar |
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| WANG Zhi-guo,LI Xi,GUO De-chun,FEI Yuan-chun. Design of Ultra Wide-band Automobile Anti-collision Radar[J]. Modern Radar, 2007, 29(4): 20-23,27 |
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| Authors: | WANG Zhi-guo LI Xi GUO De-chun FEI Yuan-chun |
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| Affiliation: | School of Information Science, Beijing Institute of Technology, Beijing 100081, China |
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| Abstract: | The UWB(Ultra Wide-band) technique is introduced into the Anti-collision radar.The requirement to UWB transmission signal is presented first,followed with a whole system block diagram and detailed explanation.Then,the PCI7300 A card is used to acquire the radar echoes,and the signal is processed in time domain,focused on targets identification and false targets elimination.Because of the specific environment for car anti-collision,only moving target is detected,which decreases the difficulty for signal processing and improves the update rate for imaging. |
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| Keywords: | ultra wide-band radar automobile anti-collision data-acquiring signal procesing in time domain |
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