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| 一种LFMCW雷达目标距离范围的划分方法 | |
| 引用本文： | 吴菲菲,陈文会,刘小民,李立哲. 一种LFMCW雷达目标距离范围的划分方法[J]. 科学技术与工程, 2011, 11(33): 8181-8185 |
| 作者姓名： | 吴菲菲 陈文会 刘小民 李立哲 |
| 作者单位： | 1. 西北工业大学电子信息学院,西安,710129 2. 陕西脉航交通测控有限公司,西安,710061 3. 西北工业大学自动化学院,西安,710129 |
| 摘 要： | 在采用对称三角波作为调制信号的线性调频连续波(Linear Frequency Modulated Continuous Wave,LFMCW)雷达系统中,雷达传感器前端产生的三角调制波泄漏信号严重影响远距离目标的测量结果。因此有必要对待测目标进行范围划分。传统的距离划分是在对回波信号进行频谱分析之后进行的。提出的基于相似度匹配法能够在未对信号进行频谱分析之前,根据与标定目标预先计算的阈值作比较,得出目标所在距离范围,并针对实际系统设计实验方案,验证该方法的可行性。 |
| 关 键 词： | LFMCW 雷达系统 泄漏信号 相似度匹配 阈值 |
| 收稿时间： | 2011-08-30 |
| 修稿时间： | 2011-09-03 |
A Method of Dividing the Range of a Target based on LFMCW Radars |
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| wufeifei,chenweihui,liuxiaoming and lilizhe. A Method of Dividing the Range of a Target based on LFMCW Radars[J]. Science Technology and Engineering, 2011, 11(33): 8181-8185 | |
| Authors: | wufeifei chenweihui liuxiaoming lilizhe |
| Affiliation: | Northwestern Polytechnical University,Shaanxi Maihang Traffic Control Ltd. Co.,Northwestern Polytechnical University |
| Abstract: | In the Linear Frequency Modulated Continuous Wave (LFMCW) radar system, the leakage of the front-end of radar sensor which caused by the wave modulation had a strong impact on the measurement results of long-range goal. In tradition, the division of the distance of the radar target happened after the process of analyzing spectrum of the echo signal. To divide the range of a target before the spectrum analysis, a method based on similarity matching was put forward. According to the threshold which computed on the standardized target, the range of the target was judged. An experiment for an existing LFMCW radar system was designed to verify the feasibility of the method method. |
| Keywords: | LFMCW radar system leakage similarity matching threshold |
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