A Further Enhanced M-estimator for the K-distribution Shape Parameter

M-estimator is a new estimator presented by Hao Cheng-peng in 2005, which possesses higher accuracy in the estimation of shape parameter of K-distribution and is enhanced in 2007. In this paper, a further enhanced M-estimator is proposed based on the enhanced M-estimator in 2007, in which some original middle procedures are omitted. The simulation results show that the estimation accuracy and efficiency both increase dramatically.