The Quantitative Research Of Ultraviolet Hyperspectral Profile Spectrometer’s Remote Sensing Information

The quantitative research of remote sensing information has become the important symbol and key factor of space atmospheric remote sensing application.The quantitative remote sensing information with high precision plays an important role in global climate change and global atmospheric environment monitoring. It is the tache between atmospheric environment and remote sensing information, which can reflect the performance characteristics of space-borne remote sensing instrument.Besides, the quantitative research of remote sensing information makes full use of remote sensing instrument to achieve high precision exploration of atmospheric trace gases.The ultraviolet hyperspectral profile spectrometer(UHPS) researched in this paper, is a multi-mode space-borne ultraviolet imaging spectrometer in domestic.Compared with conventional space-borne atmospheric remote sensing instrument, it can achieve nadir observation, limb observation and sun/moon occultation. The most important is that it can observe the same atmospheric volume in both nadir and limb within one orbit. In order to deepen the application of UHPS, the quantitative research of remote sensing information is put in practice. Combined with the characteristics of UHPS, the major research contents include multisource remote sensing technique, the quantitative implementation of multisource remote sensinginformation, and the monitoring of UHPS in-flight.The multisource remote sensing technique is the key to achieve mulitmodes observation of UHPS, and precondition of obtain multisource remote sensing information. UHPS is comprised of an imaging double spectrometer with double scan mirrors, which determines the observation modes of UHPS. First the key parameters of scanning system are calculated to achieve conventional observation modes. Then this part focuses on the combination of alternating limb and nadir measurements, which requires strict time and district matching between limb and nadir measurements. It is the difficult point of multisource observations, and important measurement of UHPS. According to the operation modes of the payload,satellite orbit and Earth’s rotation, the mathematical matching model is founded. The matching scheme is determined through calculation of Matlab and simulation of nadir/limb matching in Satellite Tool Kit(STK), which ensures the time and region matching of this special mode. At last, the error analysis is accomplished. This study supplies the concrete theory basis for the application of multi-modes space-borne remote sensing instrument in-flight.The remote sensing data obtained from multi-modes of UHPS need to quantitative transformation, i.e. quantitative research of multi-sources remote sensing information. It is the key contents of UHPS to found the relationship between output signal and target radiation. The error sources of quantitative transformation are deeply analyzed, and the corresponding correction factors are determined in the quantitative transformation of remote sensing information, such as dark signal correction, nonlinearity, polarization correction, radiance calibration.Special emphasis is placed on nadir and limb polarization correction and error analysis. At last the scheme of radiance calibration is founded and uncertainty analysis is accomplished, considering the multi-modes and double scan mirrors of UHPS. Besides, the accuracy of quantitative transformation is analyzed.In order to monitor the scientific and effective of remote sensing information in-flight, the monitor measurements are introduced at last. The spacebornecalibration system is introduced first, and then analyzes the feasibility of on-orbit radiation calibration scheme. At last, the algorithms of radiation calibration scheme are described to accomplish the monitoring of instrument.After complete the above research contents, the detecting technique, processing,monitoring of UHPS multi-sources remote sensing information are accomplished.And the high precision acquisition of remote sensing information is systematically achieved, which is an important foundation of atmospheric trace gases detection technique further application in domestic.UHPS is the product of the development of remote sensing information diversification demand, and the important production of development of atmospheric remote sensing technique in domestic. It fills a domestic gap in multi-modes spaceborne ultraviolet instrument.