本文提出了沃尔什函数作多路复用传输时的另一种调制制式——宽度调制。应用修改的沃尔什函数正交系的概念,从理论上证明了这种调制的可行性,且给出了电路设计及初步实验结果。提出这种方法意在解决非线性引起的交叉干扰,改善系统的抗噪声性能,且使序率分割系统的电路数字化。 In this paper, Walsh function is proposed for multiplex transmission of another modulation system - width modulation. Applying the modified concept of Walsh function orthogonal system, the feasibility of this modulation is proved theoretically, and the circuit design and preliminary experimental results are given. Proposed this method is intended to solve the cross-interference caused by nonlinearity, improve the anti-noise performance of the system, and digitalize the circuit of the sequential rate partitioning system.