摘要
考虑半参数测量模型,利用核函数并综合最小二乘法建立了参数β和s的估计量β∧、s∧, 其次,用一个模拟的平差算例从估值的稳定性、均方差等方面与最小二乘法进行了比较,最后, 将所得结果应用到自由网平差和GPS测量中。结果说明,半参数测量模型比参数模型更能反 应真实情况。
Considering the Semiparametric surveying adjustment models ,Firstly, the estimators of parameters β and s are derived by using the kernal function and least square method; Secondly, a simulated adjustment problem is constructed to explain this method. The new method presented in this paper shows an effective way of solving the problem. The estimated values are nearer to their theoretical ones than the adjustment method of least squares.
出处
《武汉工业学院学报》
CAS
2004年第4期108-111,共4页
Journal of Wuhan Polytechnic University
基金
湖北省自然基金项目(2004ABA032)
