Download China Satellite Navigation Conference (CSNC) 2014 by Jiadong Sun, Wenhai Jiao, Haitao Wu, Mingquan Lu PDF

By Jiadong Sun, Wenhai Jiao, Haitao Wu, Mingquan Lu

China satellite tv for pc Navigation convention (CSNC) 2014 court cases presents chosen learn papers from CSNC2014, hung on 21-23 could in Nanjing, China. The topic of CSNC2014 is 'BDS program: Innovation, Integration and Sharing'. those papers speak about the applied sciences and purposes of the worldwide Navigation satellite tv for pc method (GNSS) and the most recent development made within the China BeiDou approach (BDS) in particular. they're divided into nine subject matters to check the corresponding classes in CSNC2014, which widely coated key subject matters in GNSS. Readers can know about the BDS and continue abreast of the newest advances in GNSS innovations and applications.

SUN Jiadong is the executive fashion designer of the Compass/ BDS, and the Academician of chinese language Academy of Sciences (CAS); JIAO Wenhai is a researcher at China satellite tv for pc Navigation place of work; WU Haitao is a professor at Navigation Headquarters, CAS; LU Mingquan is a professor at division of digital Engineering of Tsinghua University.

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Research progress of SRPT can improve the accuracy of operating satellites’ long-time orbit prediction. For satellites with large wings, radiation pressure may be used for orbit maintenance. For high orbit satellites to be retired, it is possible using SRP and J2 gravity perturbation to deorbit satellites. In 2006, Borja and Tun [22] discussed methods of applying SRP control to achieve deorbit, and SRP was auxiliary thrust force in the progress. In deep space exploration, detectors with sails can take advantage of solar radiation in flight of the solar system.

With the increase of the debris size, the maximum relative momentum and relative kinetic energy also increase. When the debris size increased from 1 to 100 microns, the relative momentum increased by 1,000 times, and the relative kinetic energy increases by 106 times. At the same time, Kocifaj and Klawka [13] researched the dynamical behaviour of interstellar dust particles in the solar system. Interstellar dust particles were affected by the sun’s gravitational field, solar radiation pressure, corpuscular radiation and the interstellar magnetic field, and SRP played an important role.

The combination work and realization of ITRF is mainly done by IGN in France. They add the minimum constraints before stacking the normal equations [5]. The principle of minimum constraints applied here is expressed as Similar Transformation constraints. It can be expressed by seven parameters transformation model as: X2 À X1 ¼ Ah ð2:9Þ where X2, X1 are station coordinates in two coordinate systems; h is the transformation parameters expressed as in Eq. 1); A is the same as that of Eq. 4). If we know several common points, h can be solved by the principle of leastsquares adjustment as: À ÁÀ1 h ¼ AT P x A AT Px ð X2 À X1 Þ ð2:10Þ À1 where Px is the weight matrix of station coordinates, Let B ¼ ðAT Px AÞ AT Px , we can get: h ¼ Bð X2 À X1 Þ ð2:11Þ In order to eliminate the rank defection of Eq.

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