| 线性调频连续波雷达扫频功率起伏对其测距精度和距离分辨力的影响 |
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| 引用本文： | 陈祝明, 丁义元, 向敬成. 线性调频连续波雷达扫频功率起伏对其测距精度和距离分辨力的影响[J]. 电子与信息学报, 2000, 22(1): 170-173. |
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| 作者姓名： | 陈祝明 丁义元 向敬成 |
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| 作者单位： | 电子科技大学电子工程系,成都,610054 |
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| 摘 要： | 实际的线性调频连续波(LFMCW)雷达的发射信号都有两个非理想的参数扫频非线性和功率起伏,它们将使LFMCW雷达的实际测距精度和距离分辨力下降。本文根据LFMCW雷达回波功率谱的特性,从应用的角度分析了扫频功率起伏与其测距精度和距离分辨力的关系,为LFMCW雷达振荡器的选择提供一个理论依据。
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| 关 键 词： | 调频连续波 雷达 功率起伏 距离分辨力 |
| 收稿时间： | 1998-04-14 |
| 修稿时间： | 1998-04-14 |
THE EFFECTS OF POWER UNDULATION IN FREQUENCY SWEEP ON THE RANGE PRECISION AND RANGE RESOLUTION OF LFMCW RADAR |
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| Chen Zhuming, Ding Yiyuan, Xiang Jingcheng. THE EFFECTS OF POWER UNDULATION IN FREQUENCY SWEEP ON THE RANGE PRECISION AND RANGE RESOLUTION OF LFMCW RADAR[J]. Journal of Electronics & Information Technology, 2000, 22(1): 170-173. |
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| Authors: | Chen Zhuming Ding Yiyuan Xiang Jingcheng |
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| Affiliation: | Chen Zhuming ,Ding Yiyuan ,XiangJingcheng (Department of Electronic Engineering, UESTC Chengdu 610054) |
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| Abstract: | The transmitting signal of Linear Frequency Modulation Continuous Wave (LFMCW) radar has two nonideal parameters: sweep nonlinearity and power undulation. They make the practical range precision and range resolution of LFMCW radar decrease. This paper analyses the effects of the power undulation on the range precision and range resolution according to the echo power spectrum of LFMCW radar, and gives theoretical bases for choosing its oscillator. |
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| Keywords: | FMCW Radar Power undulation Range resolution |
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