Project Supported by the National Natural Science Foundation of China for Distinguished Yound Scholars of China (40125013) ; NationalNatural Science Foundation of China (40074006 , 40274001) ; Natural Science Foundation of Henan Province , China (004051300 ,0211051100)
To mitigate the ill effects and obtain more accurate and stable solution of the observation equations, the so-called truncated singular-value decomposition (TSVD) method is introduced by modifying the small (nonzero) ...