| 车用防撞测距仪鉴频算法的研究 |
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| 引用本文： | 崔志伟. 车用防撞测距仪鉴频算法的研究[J]. 光学仪器, 2007, 29(1): 32-36 |
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| 作者姓名： | 崔志伟 |
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| 作者单位： | 同济大学汽车学院,上海,200092 |
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| 摘 要： | 作为车用防撞测距技术中一个比较重要的环节-鉴频算法决定了测距的精度和实时性。通过对测距原理的剖析,提出了在鉴频算法之前,对信号进行加窗处理,通过分析各种窗口函数对鉴频效果的影响,提出了使用Chebyshev窗函数提高分辨精度和实时性的一种方案,并得到了较好的仿真结果。
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| 关 键 词： | 鉴频 Chebyshev窗函数 测距 |
| 文章编号： | 1005-5630(2007)01-0032-05 |
| 收稿时间： | 2006-04-14 |
| 修稿时间： | 2006-04-14 |
Research of frequency measuring algorithm of vehicle's bump-preventing telemeter |
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| CUI Zhi-wei. Research of frequency measuring algorithm of vehicle's bump-preventing telemeter[J]. Optical Instruments, 2007, 29(1): 32-36 |
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| Authors: | CUI Zhi-wei |
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| Abstract: | Frequency measuring is a basic algorithm in vehicle's bump-preventing system.It determines the accuracy and the real-time capability.Base on the theory of the distance measurement,this paper suggests using a window function before frequency measuring.By comparing several window functions,it gives a scheme of how to use Chebyshev window function to improve these performances.And obtain a good simulation result. |
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| Keywords: | frequency measuring Chebyshev windows distance measuring |
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