基于采样控制的离散方法,提出了最速跟踪微分器的一种新型离散形式.去掉了原有最速跟踪微分器离散系统中的一个零阶保持器环节,并推导了新型离散系统的最速控制综合函数.与最速跟踪微分器的原有离散形式相比,所提出的离散形式不但减少了信号滤波中的相位延迟,且得到的最速控制综合函数表达式更为简洁. A new discrete form of the steepest tracking differentiator is proposed based on the discrete method of sampling control.The zero-order retainer of the discrete-time steerable track differentiator is removed and the steepest control integrated function Compared with the original discrete form of the steepest tracking differentiator, the proposed discrete form not only reduces the phase delay in the signal filtering, but also obtains a concise expression of the steepest control integrated function.