| Yuan Qiping (袁其平),Fan Lijie,Tong Zhengrong,Yang Xiufeng,Cao Ye.[J].高技术通讯(英文),2014,20(2):111~116 |
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| Research and implementation of continuous wave radar ranging method based on tri-frequency |
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| DOI：10.3772/j.issn.1006-6748.2014.02.001 |
| 中文关键词: |
| 英文关键词: tri-frequency, ranging, SNR, phase error, wavelength error |
| 基金项目: |
| Author Name | Affiliation | | Yuan Qiping (袁其平) | | | Fan Lijie | | | Tong Zhengrong | | | Yang Xiufeng | | | Cao Ye | |
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| 中文摘要: |
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| 英文摘要: |
| 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 0.47～0.57m, 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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