FY-3B/C中分辨率光谱成像仪在轨初期传递函数的评价和比较

闵敏; 白玉; 胡秀清; 郭建平

doi:10.3788/OPE.20152307.1838

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FY-3B/C中分辨率光谱成像仪在轨初期传递函数的评价和比较

辐射定标 | 更新时间：2020-08-12

- FY-3B/C中分辨率光谱成像仪在轨初期传递函数的评价和比较
- Evaluation and comparison of modulation transfer function for FY-3B/C MERSI on early orbit
- 光学精密工程 2015年23卷第7期页码：1838-1844
- 作者机构：
  
  1. 中国气象局国家卫星气象中心中国遥感卫星辐射测量和定标重点开放实验室, 北京 100081
  2. 北京理工大学光电学院, 北京 100081
  3. 中国气象科学研究院大气成分研究所北京,100081
- 作者简介：
- 基金信息：
  
  国家自然科学基金资助项目(No.41405035,41471301)();公益性行业(气象)科研专项基金资助项目(No.GYHY201406011)()
- DOI：10.3788/OPE.20152307.1838
  中图分类号： P414.4;TP752
- 收稿日期：2015-02-13，
  
  修回日期：2015-04-24，
  
  纸质出版日期：2015-07-25
- 稿件说明：
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闵敏, 白玉, 胡秀清等. FY-3B/C中分辨率光谱成像仪在轨初期传递函数的评价和比较[J]. 光学精密工程, 2015,23(7): 1838-1844

MIN Min, BAI Yu, HU Xiu-qing etc. Evaluation and comparison of modulation transfer function for FY-3B/C MERSI on early orbit[J]. Editorial Office of Optics and Precision Engineering, 2015,23(7): 1838-1844
闵敏, 白玉, 胡秀清等. FY-3B/C中分辨率光谱成像仪在轨初期传递函数的评价和比较[J]. 光学精密工程, 2015,23(7): 1838-1844 DOI： 10.3788/OPE.20152307.1838.

MIN Min, BAI Yu, HU Xiu-qing etc. Evaluation and comparison of modulation transfer function for FY-3B/C MERSI on early orbit[J]. Editorial Office of Optics and Precision Engineering, 2015,23(7): 1838-1844 DOI： 10.3788/OPE.20152307.1838.

摘要

针对极轨气象卫星的特点

提出了利用极地冰雪目标进行风云(FY)卫星中分辨率光谱成像仪(MERSI)传递函数(MTF)测试的刃边方法。该方法沿着冰雪和海洋之间的边缘进行取样

然后将获得的点扩展函数经过傅里叶变换得到最后Nyquist频率点处的MTF值。该方法能够应用于绝大多数MERSI通道。MTF测试结果表明:在轨初期

FY-3B/C-MERSI图像在卫星飞行方向的MTF结果都在0.31左右

图像质量较高

能够满足设计指标。但两颗卫星的MERSI传感器图像空间频率特性沿扫描方向都不是很好

1 000 m分辨率的FY-3C图像测试结果集中在0.12左右

FY-3B集中在0.10左右

且FY-3C星结果系统偏高于B星

B星250 m分辨率的测试结果只有0.07。分析认为导致这种图像频率特征质量在扫描方向严重下降的主要原因是设计MERSI时为保证信噪比保留的像元重叠扫描

建议在下一代FY-3号气象卫星设计时考虑这种重叠扫描的处理。

Abstract

In consideration of the characteristics of polar-orbiting satellites

an edge Modulation Transfer Function(MTF) test method using ice and snow targets in polar region is proposed for the China polar-orbit meteorological satellite FengYun (FY) 3-MEdium Resolution Spectral Imager (MERSI

20 bands

with 250 m and 1 000 m resolution). It takes samples from the edge between ice block and sea to get the Point Spread Function (PSF). Then

the Fast Fourier Transform (FFT) method is used to calculate the PSF and retrieve MTF values at the Nyquist frequency point. This method is available to the most of MERSI bands. The experiment results for MTF measurement indicate that the MTFs of all bands along FY-3B/C flight direction are about 0.31 (>design index 0.27/0.25) with high spatial frequency feature quality. However

the spatial frequency feature qualities along MERSI scan direction are bad for both FY-3B and 3C satellites. The MTFs at 1.0 km resolution of FY-3B/C images are respectively approximate 0.10 and 0.12

which also show that the systematic results of FY-3C are higher than that of the FY-3B. The MTFs of FY-3B/MERSI are even just around 0.07 at 250 m resolution. This finding may be primarily attributed to 27% overlapped scanning in the original design of FY-3/MERSI imaging system to enhance the signal-to-noise ratio (SNR) of images. It suggests that the overlapped scanning should be processed in design of the next generation FY-3 atmospheric satellite.

关键词

Keywords

references

CHOI T. IKONOS Satellite on Orbit Modulation Transfer Function (MTF) Measurement using Edge and Pulse Method[D]. South Dakota: South Dakota State University, 2002.

CHOI T, HELDER D. Generic sensor modeling for modulation transfer function (MTF) estimation [J]. in Proc. Pecora 16 Global Priorities Land Remote Sensing, 2005: 1-12.

XIONG X, CHE N, BARNES W L, Terra MODIS on-orbit spatial characterization and performance [J]. IEEE Transactions on Geoscience and Remote Sensing, 2005, 43(2): 355-365.

顾行发, 李小英, 闵祥军, 等. CBERS-02卫星CCD相机MTF在轨测量及图像MTF补偿[J]. 中国科学, 2005, 35(增刊I): 26-40. GU X F, LI X Y, MIN X J, et al.. In flight MTF monitoring and compensation for CCD camera on CBERS-02 [J]. Science in China, 2005, 35(SuppI): 26-40. (in Chinese)

KAFRANDJIAN V. A comparisons of the ball, wire, edge, and bar/space pattern techniques for modulation transfer function measurements of linear X-ray detectors [J]. Journal of X-ray Science and Technology, 1996, 2: 205-221.

ROJAS F, SCHOWENGERDT R A, BIGGAR S F. Early results on the characterization of the Terra MODIS spatial response [J]. Remote Sensing of Environment, 2002, 83: 50-61.

孟伟, 金龙旭, 李国宁, 等. 调制传递函数在遥感图像复原中的应用[J]. 红外与激光工程, 2014, 43(5): 1690-1696. MENG W, JIN L X, LI G N, et al.. Application of MTF in remote sensing image restoration [J]. Infrared and Laser Engineering, 2014, 43(5): 1690-1696. (in Chinese)

SCHOWENGERDT R A, ARCHWAMETY C, WEIGLEY R C. Landsat thematic mapper image-derived MTF [J]. Photogrammetric Engineering and Remote Sensing, 1985, 51(9): 1395-1406.

RAUCHMILLER R F, SCHOWENGERDT R A. Measurement of the Landsat Thematic Mapper MTF using an array of point sources [J]. Optics Engineer, 1988, 27(4): 334-343.

RYANA R, BALDRIDGE B, SCHOWENGERDT R A. IKONOS spatial resolution and image interpretability characterization [J]. Remote Sensing of Environment, 2003, 88: 37-52.

CHOI T, XIONG X, WANG Z. On-orbit lunar modulation transfer function measurements for the moderate resolution imaging spectroradiometer [J]. IEEE Transactions on Geoscience and Remote Sensing, 2014, 52(1): 270-277.

WANG Z, CHOI T, XIONG X. On-orbit modulation transfer function characterization of Terra MODIS using the moon [J]. in Proc. SPIE, 2011, 8153: 81531N.

WANG Z, XIONG X, CHOI T, et al.. On-orbit characterization of MODIS modulation transfer function using the moon [J]. IEEE Transactions on Geoscience and Remote Sensing, 2014, 52(7): 4112-4121.

杨军, 董超华, 卢乃锰,等. 中国新一代极轨气象卫星—风云三号[J]. 气象学报, 2009, 67(4): 501-509. YANG J, DONG CH H, LU N M, et al.. FY-3A: the new generation polar-orbiting meteorological satellite of China [J]. Acta Meteorologica Sinica, 2009, 67(4): 501-509.

YANG J, ZHANG P, LU N, et al.. Improvements on global meteorological observations from the current Fengyun 3 satellites and beyond [J]. International Journal of Digital Earth, 2012, 5(4): 251-265.

YANG Z, LU N, SHI J, et al.. Overview of FY-3 payload and ground application system [J]. IEEE Transactions on Geoscience and Remote Sensing, 2012, 50(12): 4846-4853.

HU X, SUN L, LIU J, et al.. Calibration for the solar reflective bands of medium resolution spectral imager onboard FY-3A [J]. IEEE Transactions on Geoscience and Remote Sensing, 2012, 50(12): 4915-4928.

胡秀清, 张里阳, 郑照军, 等. FY-3A中分辨率光谱成像仪热红外通道的多探元辐射定标[J]. 光学精密工程, 2010, 18(9):1972-1980. HU X Q, ZHANG L Y, ZHEN ZH J, et al.. FY-3A multi-detector radiometric calibration for infrared band medium resolution spectral imager [J]. Opt. Precision Eng., 2010, 18(9): 1972-1980. (in Chinese)

MIN M, HU X, BAI Y. Performance evaluation for on-orbit modulation transfer function of FengYun-3C Medium Resolution Spectral Imager (MERSI) using polar ice and snow [J]. Proceeding of SPIE, 2014, 9264: 92640M.

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