摘要
综合孔径成像是基于干涉仪成像原理实现的一种成像方式,其通过对干涉测量结果进行逆傅里叶变换得到场景的亮温分布,利用小波增强去噪算法在时域和频域同时对图像进行处理,增强需求信息抑制非必要信息,并附加特定的窗函数滤除杂波,提高重建的微波辐射计图像的清晰度和平滑感。采用盲解卷的Lorentzian超分辨率算法提高成像的分辨力,较好的解决了天线口面尺寸与分辨力矛盾的问题。
Aperture synthesis image is a base theory of interferometer. Base on interferometer measurements result,using inverse Fourier transform get the bright temperature distribution of scene. Using wavelet enhancement denoising algorithm and process the image in time domain and frequency domain. Enhance demand information and suppress unnecessary information,attaches a specific window function to filter clutter,improve clarity and smoothness about the microwave radiometer. Using blind uncoiling lorantzian super resolution algorithm to improve imaging resolution,well done the contradiction of antenna port face and resolution.
作者
陈海建
丁孝永
王锐
CHEN Hai-jian;DING Xiao-yony;WANG Rui(The MilOare Representative Office of Navy in Second Research Academy of CASI,Beijiny 100039,China;Beijiny Instituta of Radic Metroloyy & Measurement,Beijing 100039,China;The 32182th Knit of PLA,Beijiny 100039,China)
出处
《宇航计测技术》
CSCD
2019年第3期79-84,共6页
Journal of Astronautic Metrology and Measurement
关键词
微波辐射计
小波增强
超分辨率
Microwave radiometer
Wavelet enhancement
Super resolution
