Research and implementation of continuous wave radar ranging method based on tri-frequency

袁其平; Fan Lijieare; Tong Zhengrong; Yang Xiufeng; Cao Ye

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Research and implementation of continuous wave radar ranging method based on tri-frequency

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摘要

In the traditional dual-frequency radar ranging system,there is a contradiction between ranging precision and ranging distance.So a tri-frequency ranging method is proposed.The principle of the tri-frequency ranging is that the distance can be achieved by transmitting the three frequencies and then measuring the three phase difference and calculating the number of wavelength.What's more,range ambiguity will not occur within a certain distance.The experimental results show that,if the waveband is 0.47 ~0.57 m,the measurement of unambiguous distance of 25 ~500m can be realized.If the wavelength tolerance error is less than ± 10^(-7) and the phase error is less than ± 10^(-3),the precision of the distance ranging can reach 10^(-6).

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《高技术通讯：英文版》 |2014年第2期|111-116|共6页
作者
袁其平; Fan Lijieare; Tong Zhengrong; Yang Xiufeng; Cao Ye;
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作者单位

School of Electronics Information Engineering;

Tianjin University of Technology;

Key Laboratory of Film Electronics and Communication Devices and Key Laboratory of Intelligent Computing and Novel Software Technolgy;

School of Computer and Communication Engineering;

Tianjin University of Technology;

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原文格式 PDF
正文语种 chi
中图分类连续波雷达、等幅连续波雷达;汽车理论;
关键词
测距方法; 连续波雷达; 三频; 雷达测距系统; 测距精度; 频率范围; 相位误差; 距离;

Research and implementation of continuous wave radar ranging method based on tri-frequency

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