In this research, an analytical study of error was introduced, and the error correction means by bilinear interpolation and adaptive centroid window was described.

• 在传统质心法的基础上提出了采用二元线性插值和自适应质心窗来改善信噪比,并对误差进行校正,实验证明了它比传统的质心法有更高的精度。