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《Acta Geodaetica Et Cartographic Sinica》 2002-03
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A Two Steps Solution of Collocation

ZHOU Jiang-wen (Institute of Geodesy and Geophysics, Chinese Academy of Sciences ,Wuhan 430077, China)  
Take the general model of collocation AmnmX+BrnrY=L+Δ (1) The current solution is found under the bi fitting rule (2), it has some shortcoming . This paper puts forward a two steps solution: 1. Term Y is incorporated into Δ , then find the best estimate under the singular fitting rule. 2. Term being incorporated into L, is found also under a singular fitting rule.
【CateGory Index】: P207
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