腕力传感器的传递矩阵对输出信号的解耦和提高腕力传感器的精度具有重要意义。本文从多项式最佳逼近的实现来求解传递矩阵。首先在L~2意义上提出了一般的传递矩阵计算法, 并提出了两种改进的算法。然后从一致逼近出发提出最佳传递矩阵计算法,并利用线性规划的方法求出最佳传递矩阵。实验和计算结果验证了这些算法是有效的。 The transfer matrix of the wrist force sensor is of great significance for decoupling the output signal and improving the precision of the wrist force sensor. This paper solves the transfer matrix from the realization of the polynomial best approximation. Firstly, a general transfer matrix method is proposed in the sense of L ~ 2 and two improved algorithms are proposed. Then, the optimal transfer matrix method is proposed based on the uniform approximation, and the optimal transfer matrix is ​​obtained by linear programming. Experiments and calculations show that these algorithms are effective.