中文摘要：

针对在迭代双乔里斯基整数变换降相关性LAMBDA方法的基础上，解算历元数较少时方差-协方差阵轻微病态，在对原始的双差模糊度参数进行降相关的可容许整数变换时，得到的Z变换矩阵可能异常。为了能够准确和快速的解算整周模糊度，提出了对方差．协方差阵正则化的改进方法，再进行LAMBDA方法模糊度搜索即可固定模糊度。并通过的实例证明实例证明此方法计算简单，需要历元数减少，搜索效率和稳定性高。

英文摘要：

On the basis of the LAMBDA of iterative double-Cholesky integer transforming for deeorrelation, it is found that the covariance matrix may be abnormial when a few epoches are used.The original dual-bad ambiguity parameters can be allowed to drop in related integer transformation, which leads to abnormal Z transformation matrix. In order to be able to accurately and quickly calculate ambiguity, a modified method is introduced that the covariance matrix is regularized before decorrelating admissible integer transformation, LAMBDA method is used search for ambiguity to fix the ambiguity. The sample demonstrates that the modified method needs a smaller number of epoches and is more stable.