Abstract: Chinese have experienced the pre-researches and partial satellite tests on the man carried cosmonautic vehicle， carried on the researches on environmental control and ecology protection subsystem in "Shenzhou" airships， carried on the researches on physical chemistry regenerating technical of environmental control and ecology protection & that of controlled ecology and ecology This paper mainly introduces the research evolution of the technical of the environmental control and ecology protection system and analyses the technical characteristic about the environmental control and ecology protection Abstract: In this paper， we provide a new practical method to abstract noise model of INS/GNSS integrated navigation system for Kalman filter from measuring data， we first designed the experiment which based on the elaborate deduction， then we log the data of GNSS and made stationary test of the stochastic process， after that， we fit the model and estimate the This method， we think， can be used practically in other integrated navigation
