| 基于六端口技术的双频连续波雷达 |
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| 作者姓名： | 丁瑶 刘发林 朱志臻 |
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| 作者单位： | 中国科学技术大学电子工程与信息科学系,合肥 230027 |
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| 基金项目： | 安徽省自然科学基金(070412036)资助 |
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| 摘 要： | 提出了一种基于六端口技术的双频连续波雷达.该雷达利用六端口电路代替混频器,获取回波信号与发射信号间的相位差及多普勒频差,从而实现距离和速度测量.此外,还分析了噪声的传递特性,并提出了有效的抗噪声的方法,实现了比传统雷达更高的测量精度.仿真结果表明这种雷达测量过程简单,测量精度高.
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| 关 键 词： | 六端口技术 双频连续波雷达 多普勒频率 反射系数 最小二乘估计 |
| 收稿时间： | 2009-07-28 |
| 修稿时间： | 2010-02-09 |
Dual-tone continuous wave radar based on six-port technology |
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| Authors: | DING Yao LIU Fa-Lin ZHU Zhi-Zhen |
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| Institution: | Department of Electronic Engineering and Information Science, University of Science and Technology of China, Hefei 230027, China |
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| Abstract: | A novel dual-tone CW radar is proposed. Six-port circuit is used as a mixer to obtain the phase difference and Doppler frequency difference between the received and transmitted signals, and then the range and relative velocity of the target can be calculated. An anti-noise method is also proposed according to the measurement process and noise transfer principle. Simulation results show that this proposed radar has a higher accuracy with a simpler measure procedure. |
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| Keywords: | six-port technology dual-tone CW radar Doppler frequency reflection coefficient least square estimation |
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