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| 1 | Radiometric cross-calibration of the CBERS-02 CCD camera with the TERRA MODIS显示文摘For the application of the CCD camera, the most important payload on CBERS-02, the key is to provide long-term stable radiometric calibration coefficients. Although the vicarious calibration had been proved successful, it had its limitations such as test site requirement and unsuitable for historical data. Cross-calibration is one of the alternative methods, but it needs synchro surface spectrum to achieve spectral band matching factors. Our effort is to probe the influences on these factors. Simulations with a lot of surface spectrum showed that the factors changed with the viewing geometry, atmospheric condition and surface targets. However, simulating with the same viewing geometry and atmospheric condition, the spectral band matching factors of the same or similar surface targets’ spectrum acquired from different dates and different places would like to be consistent to each other within 1%―5%. Thus, the synchro measurement data can be substituted by the same or similar target from other source. Based on this method, using the MODIS as the reference, the cross-calibration was performed for CCD camera. The research demonstrated that the traditional method with single calibration site was inappropriate for CCD camera, since the offsets for its four spectral bands were not zeros. With four calibration sites, these offsets were obtained. And the camera was detected to degrade with dates based on four times of cross-calibrations. | LI Xiaoying1,2,3, GU Xingfa1,3,4, MIN Xiangjun5, YU Tao1,3, FU Qiaoyan5, ZHANG Yong1,2,3 & LI Xiaowen1,3 1. State Key Laboratory of Remote Sensing Science, Jointly Sponsored by the Institute of Remote Sensing Applications of Chinese Academy of Sciences and Beijing Normal University, Beijing 100101, China 2. Graduate University of Chinese Academy of Sciences, Beijing 100039, China 3. The Center for National Spaceborne Demonstration, Beijing 100101, China 4. Institut National de la Recherche Agronomique, Climat Sol Environnement, 84914 Avignon, France 5. China Center for Resource Satellite Data and Application, Beijing 100830, China | 2005 | Science China(Technological Sciences)2005，48，S2： | 15 |
| 2 | Absolute radiometric calibration of CBERS-02 IRMSS thermal band显示文摘Based on the laboratory calibration before launch of CBERS-02 IRMSS thermal infrared channel, the onboard blackbody calibration, the radiometric cross- calibration against TERRA MODIS corresponding channel and the in-flight field calibration at Lake Qinghai: water surface radiometric calibration test site of China on Aug. 17, 2004 are carried out in this research. When making onboard blackbody calibration of CBERS-02 IRMSS, it is necessary to understand inside structures and light path in IRMSS camera and receive and process calibration blackbody signals at normal and high temperatures. Onboard blackbody calibration results of each detector are very important to relative radiometric calibration of images processing and absolute radiometric calibration of each detector. In-flight field calibration mainly contains field experiments, obtaining synchronous images, spectrum marching and MODTRAN radiative transmi- ssion computation. Radiometric cross-calibration of CBERS-02 IRMSS thermal band against TERRA MODIS selected 6 times synchronous images of two sensors passing through Lake Qinghai and Lake Taihu from August to December, 2004 to compute the cross calibration data. Combining the in-flight field calibration and radiometric cross calibration data, the absolute radiometric calibration coefficients are calculated by the linear regression method. This new calibration model can obviously control the radiometric calibration uncertainties aroused by the single point method used in the in-flight calibration of CBERS-02 IRMSS, this kind of sensors cannot receive the cosmic background radiation. In this research, the radiometric calibration coefficients obtained through the linear regression model are 8.53 (gain, unit: DN/W m?2sr?1μm?1) and 44.92 (offset, unit: DN). | ZHANG Yong1,2,3, GU Xingfa1,3,4, YU Tao1,3, ZHANG Yuxiang5, CHEN Liangfu1,3, LI Xiaoying1,2,3, LI Xiaowen1,3 & HE Liming6 1. State Key Laboratory of Remote Sensing Science, Jointly Sponsored by the Institute of Remote Sensing Applications of Chinese Academy of Sciences and Beijing Normal University, Beijing 100101, China 2. Graduate University of Chinese Academy of Sciences, Beijing 100039, China 3. The Center for National Spaceborne Demonstration, Beijing 100101, China 4. Institut National de la Recherche Agronomique, Climat Sol Environnement, 84914 Avignon, France 5. National Satellite Meteorological Center, Beijing 100081, China 6. State Environmental Protection Administration, Beijing 100029, China | 2005 | Science China(Technological Sciences)2005，48，S2： | 6 |
| 3 | In flight MTF monitoring and compensation for CCD camera on CBERS-02显示文摘In this article, the approach of simulating ideal tarp scene was proposed to determine the MTF for CCD camera on CBERS-02. The MTF acquired from this technique was compared to those from some common methods. MTFs achieved from different approaches were employed to compensate the CCD images based on three restoration algorithms: the iterative method, the Wiener filter and the modified inverse filter (MIF). The two-dimensional MTF was established with the value at frequency 0.5 for 45° directional MTF as the value at its four corners. This article addressed the variations of the restored CCD images with different techniques of constructing two-dimensional MTF, restoring algorithms and determining the in-flight MTFs. Results showed images restored with the MTF determined from the technique of simulating ideal tarp scene represent the real scene best. And the restoration technique based on the MIF would produce better restored images than the other two techniques. This research also demonstrated that the two-dimensional MTF used for restoration should be interpolated under the control of the MTF for 45° axis, rather than by multiplying the cross-orbit MTF with along-orbit MTF. | GU Xingfa1,2,3, LI Xiaoying1,2,4, MIN Xiangjun5, YU Tao1,2, SUN Jijuan5, ZENG Yong1,2,4, XU Hua1,2 & GUO Ding2,6 1. State Key Laboratory of Remote Sensing Science, Jointly Sponsored by the Institute of Remote Sensing Applications of Chinese Academy of Sciences and Beijing Normal University, Beijing 100101, China 2. The Center for National Spaceborne Demonstration, Beijing 100101, China 3. Institut National de la Recherche Agronomique, Climat Sol Environnement, 84914 Avignon, France 4. Graduate University of Chinese Academy of Sciences, Beijing 100039, China 5. China Center for Resource Satellite Data and Application, Beijing 100830, China 6. University of Electronic Science and Technology of China, Chengdu 610054, China | 2005 | Science China(Technological Sciences)2005，48，S2： | 4 |
| 4 | Insulin sensitivity and stress显示文摘 | Avignon A Monnier L | 2001 | Diabetes Metab2001，27，22： | 1 |
| 5 | Carbon flux distribution in antibiotic-producing chemostat cultures of Streptomyces lividans 显示文摘 | Avignone RC White J Kuiper A | 2002 | Metab Eng2002，4，： | 1 |
| 6 | Osteoprotegerin is associated with silent coronary artery disease in high-risk but asymptomatic type 2 diabetic patients显示文摘 | Avignon A Sultan A Piot C | | 0，，： | 1 |
| 7 | Neutrinoless double -beta decay of 76Ge: First results from the International Germanium Experiment (IGEX) with six isotopically enriched detectors 显示文摘 | Avignone Ⅲ F T Brodzinski R L | 1999 | Phys Rev C1999，59，4： | 1 |
| 8 | Magnetic moment formation in quantum point contacts显示文摘 | CORNAGLIA P S BALSEIRO C A AVIGNON M | 2005 | Physical Review B2005，71，2： | 1 |
| 9 | Comparison of the influence factors on NDVI for CCD camera and WFI imager on CBERS-02显示文摘CCD and WFI are payloads in the visible light and near infrared bands on CBERS satellites and they have not been applied widely, especially WFI. This article mainly probes into the potential of these two sensors’ application in the vegetation monitoring and analyses the influences of radiometric calibration, atmosphere conditions and sun-observing geometry, etc. on NDVI obtained from these two sensors respectively. In addition it analyses the effect of the spectral response difference of red and near infrared spectral bands in CCD and WFI sensors on NDVI. Results indicate that radiometric calibration is the most important factor on NDVI, which cannot be applied to vegetation monitoring without radiometric calibration. Results also demonstrate that near surface NDVI is different greatly from that of TOA which change with atmosphere conditions. The study shows that NDVI is also affected by the non-lambertian character of surface and the change of the atmospheric path with the observing geometry. And NDVI of WFI is higher than that of CCD. They are very different because of their spectral difference, but they have a good linear relevant relationship. | YU Tao1,3, LI Xiaoying1,2,3, ZHANG Yong1,2,3, ZHAO Feng1,2,3, GU Xingfa1,3,4, ZHU Li1,2,3, WANG Pengxin5 & MIN Xiangjun6 1. State Key Laboratory of Remote Sensing Science Institute of Remote Sensing Application, CAS, Bei- jing 100101, China 2. Graduate University of Chinese Academy of Sciences, Beijing 100039, China 3. The Center for National Spaceborne Demonstration, Beijing 100101, China 4. Institut National de la Recherche Agronomique, Climat Sol Environnement, 84914 Avignon, France 5. College of Information and Electrical Engineering, China Agricultural University, Beijing 100083, China 6. China Center for Resource Satellite Data and Application, Beijing 100830, China | 2005 | Science China(Technological Sciences)2005，48，S2： | 1 |
| 10 | Status Epilepticus Induces a Particular Microglial Activation State Characterized by Enhanced Purinergic Signaling显示文摘 | Avignone E Ulmann L Levavasseur F | | 0，，37： | 1 |
| 11 | Upregulation of GABA Neurotransmission Suppresses Hippocampal Excitability and Prevents Long-Term Potentiation in Transgenic Superoxide Dismutase-Overexpressing Mice显示文摘 | Levkovitz Y Avignone E Groner Y | 1999 | J Neurosci1999，19，10： | 1 |
| 12 | Gap junctions and connexin expression in the normal and pathological central nervous system显示文摘 | Rouach N Avignone E Même W | 2002 | Biol Cell2002，94，78： | 1 |
| 13 | Gap junctions and connexin expression in the normal and pathological central nervous system显示文摘 | Rouach N Avignone E Meme W | 2002 | Biol Cell2002，94，78： | 1 |
| 14 | Modeling of surface myoelectric signals-Part I:Model implementation显示文摘 | Merletti R Conte LL Avignone E | 1999 | IEEE Transactions on Biomedical Engineering1999，46，7： | 1 |
| 15 | Gap junctions and connexin expression in the normal and pathological central nervous system显示文摘 | ROUACH N AVIGNONE E MEME W | 2002 | Biol Cell2002，94，78： | 1 |
| 16 | PKC-B inhibition: a new therapeutic approach for diabetic complications? 显示文摘 | Avignon A Sultan A | 2006 | Diabetes Metab2006，32，3： | 1 |
| 17 | Pneumocystis pneumonia显示文摘 | D'Avignon LC Schofield CM Hosphenthal DR | 2008 | Sem in Resp Crit Care Med2008，29，2： | 1 |
| 18 | Balance of beneficial and deleterious health effects of quinones: a case study of the chemical properties of genistein and estrone quinones 显示文摘 | Zhang Q Tu T d'Avignon DA | 2009 | JAm Chem Soc2009，131，3： | 1 |
| 19 | Insulin sensitivity and stress 显示文摘 | Avignon A Monnier L | 2001 | Diabe- tes Metab2001，27，22： | 1 |
| 20 | Early physiotherapy ad modum Vojta or Bobath in infants with suspected neuromotor disturbance显示文摘 | d'Avignon M Noren L Arman T | 1981 | Neuropediatrics1981，12，： | 1 |
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