Global relative radiation correction method for the HY-1C/D Coastal Zone Imager

نویسندگان

چکیده

海洋一号C/D卫星(HY-1C/D)海岸带成像仪CZI(Coastal Zone Imager)搭载有2个相机4片CCDï¼Œå¹ å®½ä¸º950 km,在0级原始影中存在渐晕和片间色差等辐射问题。本文针对海岸带成像仪载荷结构特点,提出了一种针对多片原始CCDå½±åƒç‰‡é—´è‡ªé€‚åº”å‡è¡¡çš„ç›¸å¯¹è¾å°„æ ¡æ­£æ–¹æ³•ã€‚é¦–å ˆï¼Œé‡‡ç”¨åœ¨è½¨ç»Ÿè®¡æ–¹æ³•å¯¹å•ç‰‡CCDå½±åƒè¿›è¡Œç‰‡å† è¾å°„æ ¡æ­£ï¼Œæ˜Žæ˜¾æ”¹å–„äº†æ¸æ™•é—®é¢˜ã€‚ç„¶åŽï¼Œé€šè¿‡å¤§è§†åœºè™šæ‹Ÿé‡æˆåƒæ–¹æ³•å¯¹å¤šç‰‡CCDå½±åƒè¿›è¡Œé«˜ç²¾åº¦å‡ ä½•æ‹¼æŽ¥ï¼Œåœ¨æ­¤åŸºç¡€ä¸Šï¼Œç»Ÿè®¡é‡å åŒºåŸŸè‰²å½©ä¿¡æ¯ã€‚æœ€åŽï¼Œæ ¹æ®ç›¸é‚»ç‰‡å·¦å³é‡å åŒºåœ¨ç‰‡é—´è‰²å½©æ ¡æ­£å‰åŽå ·æœ‰è‰²å½©ä¸€è‡´æ€§çš„çº¦æŸï¼Œå®žçŽ°å ¨å±€å¤šç‰‡CCDå½±åƒè‰²å½©å‚æ•°è§£ç®—å’Œç‰‡é—´å½±åƒå‡è¡¡æ ¡æ­£ã€‚ä»Žå®žéªŒç»“æžœæ¥çœ‹ï¼Œç»è¿‡å ¨è§†åœºç›¸å¯¹è¾å°„æ ¡æ­£å¤„ç†åŽï¼Œå¹³å‡è¡Œæ ‡å‡†å·®ã€å¹¿ä¹‰å™ªå£°å’Œæ¡çº¹å™ªå£°å‡ä¼˜äºŽè·¯å¾„ä¼ é€’æ³•ï¼Œç›¸å¯¹è¾å°„è´¨é‡ä¼˜äºŽ3%,有效提高了海洋一号C/D卫星海岸带成像仪影像相对辐射质量。

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ژورنال

عنوان ژورنال: Journal of remote sensing

سال: 2023

ISSN: ['1007-4619', '2095-9494']

DOI: https://doi.org/10.11834/jrs.20232289