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Discussion on the Ill-conditioned Problems in Normal Equation of Geodesy
Author(s): 
Pages: 1-3
Year: Issue:  5
Journal: HYDROGRAPHIC SURVEYING AND CHARTING

Keyword:  大地测量法方程奇异值分解误差转移;
Abstract: 在大地测量中,法方程病态问题大量存在.由于病态性的存在,致使按最小二乘法解算参数估值精度变差发生扭曲,最终使所得结果不能使用.重点研究奇异值分解法(SVD)和误差转移法解决病态问题的思想、途径、对关键问题的处理、适用范围等.最后通过GPS实测数据来验证这两种方法的有效性,其解算的结果表明:这两种方法能解决法方程病态性问题,且算法简便、易懂,有较强的应用价值.
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