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The Space-Based Infrared System (SBIRS) is an important part of the anti-missile system. As the scale of SBIRS deployment expands, it will bring unprecedented pressure to the system. In this paper, we discussed the mission of SBIRS and the timeliness, accuracy, scalability and knowledge discovery challenges, explore advanced technologies that can improve the performance of SBIRS. Six technologies were studied in this paper: compressive sensing, on-board processing, cluster-based HPC system, parallel file system, NoSQL database, and data mining technology. And we introduced the related applications of technologies mentioned above. The result can provide ideas for the improvement of SBIRS.

Aiming at the problem that remote sensing data of detection band of infrared early warning satellite(IEWS) is difficult to obtain, the earth background radiation simulation method of IEWS detection waveband based on retrieving earth surface temperature was studied. The earth surface temperature distribution maps were generated by using a generalized single-channel algorithm for retrieving earth surface temperature of the FY-3/MERSI datasets. On this basis, the earth infrared radiation model was constructed, which fully considered the influence of altitude, atmospheric model, surface type and other factors on earth surface radiation. The joint programming of MATLAB and MODTRAN was used to calculate the surface radiation corresponding to each pixel, and realize the generation of earth background radiation image of IEWS detection band. The simulation results show that the simulated images have high resolution, and can accurately reflect the earth background radiation characteristics of IEWS detection waveband. The research result provides scene data support for studying IEWS operational effectiveness evaluation and target recognition technology.

In the current ORSM system, the target LOS direction error is existed in the station-center coordinate system. The essential principle about the measuring target LOS direction method by the attitude transformation matrix (ATM) is introduced. The fundamental cause about the error produced is analyzed. According to the different kinds of variable in the optics system, the several models of quantitative analysis for the error transferred in the measuring target LOS direction by the attitude transformation matrix are built. And then, the errors obtained from these models by reasonable data are worked out, and are compared with the actual errors. The results demonstrate these models' effectiveness.

This paper addresses the problem and the method to make high-resolution radar imaging of ship targets at sea. Based on the general ship 3-D swaying geometry, the paper analyses the effect of ship sailing velocity and 3-D rotation movements to SAR imaging mode, and then provides an imaging interval selection method with the R-D (range-Doppler) ISAR imaging algorithm. We stress the fact that the robustness and the facility of this method to deal with abound echo data in real-time engineering process. The ISAR imaging results of actual measured ship echo data proves the validly of this method.

Based on the mathematics model of pulse pairing histogram statistic method, this paper discusses the ambiguity reason of high-frequency pulse signal pairing using the histogram statistic method, and computer simulation is applied to prove that the extended pulse pairing histogram statistic method can not resolve the ambiguity of high-frequency pulse signal entirely, then this paper gives the method of multilevel extended pulse pairing histogram statistic method to wipe off the false peaks, computer's simulation proves the valid of ambiguity elimination.

A non-linear stretching method was implemented for stream function theory to solve wave kinematics for physical conditions close to breaking waves in shallow waters, with wave heights limited by the water depth. The non-linear stretching method proves itself robust, efficient and fast, showing good agreement with numerical tools used in the current study; hereby, extending the practical application to load assessment for wind offshore engineering designs.