超分辨方法在多普勒波束锐化中的应用
APPLICATIONS OF SUPERRESOLUTION SIGNAL ESTIMATORS TO DOPPLER BEAM SHARPENED IMAGING
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摘要: Relax超分辨算法基于信号和噪声参数化模型的谐波恢复方法，具有比傅里叶变换更高的分辨率。本文讨论了Relax超分辨方法，并把它应用于实测数据多普勒波束锐化(DBS)成像中；提出了一种基于Relax超分辨算法的目标特征提取方法。实验表明Relax超分辨算法比传统的基于傅里叶变换的多普勒波束锐化(DBS)方法具有较好的效果．
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关键词:
- 超分辨;雷达成像;多普勒波束锐化成像
Abstract: The Superresolution mehtod based on the models of both the signal and the noise leads tO a superior accuracy thah the FFT method．This paper presents applications of superresolution signal estimatiors to Doppler beam sharpened imaging and proposes a method for target feature extraction．Experimental results show that the imaging quality are superiorhan that of traditional FFT method. -
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