Discussion on Some Problems about the Use of Least Square Parameter Estimation
Zhou Weihu Fei Yetai Ding Shudan
Abstract Some attentive problems involved in least square(LSQ) parameter estimation are discussed in this paper.The new research and application trends about LSQ are pointed out as well.
Key words LSQ,Parameter estimation,Precision prediction,Robust estimation
在各種工程測(cè)量中，最小二乘參數(shù)估計(jì)不受測(cè)量值誤差分布的影響，因而是一種有效的方法，得到了廣泛的應(yīng)用。但也會(huì)出現(xiàn)一些問(wèn)題，使最小二乘法的應(yīng)用受到影響，如：隨著參數(shù)的增加，解算效率和解算精度下降；參數(shù)相關(guān)或復(fù)相關(guān)導(dǎo)致法方程奇異；粗差對(duì)參數(shù)估計(jì)影響較大等。本文提出若干問(wèn)題加以討論.