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| 车用防撞测距仪鉴频算法的研究 |
| Research of frequency measuring algorithm of vehicle''''s bump-preventing telemeter |
| 修订日期:2006-04-14 |
| DOI: |
| 中文关键词: 鉴频 Chebyshev窗函数 测距 |
| 英文关键词:frequency measuring,Chebyshev windows,distance measuring |
| 基金项目: |
| 崔志伟 |
| 同济大学汽车学院 上海200092 |
| 摘要点击次数: 2238 |
| 全文下载次数: 17 |
| 中文摘要: |
| 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. |
| 英文摘要: |
| 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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