piecewise linear function meaning in English

分段线性函数

An off - line algorithm of constrained model predictive control based on piecewise - linear feedback control law is presented to solve its potentially high on - line computational demand . the piecewise - linear feedback control law is off - line computed by lmi optimization problems and the on - line control computation reduces to the simple evaluation of the defined piecewise linear function , which makes the online computational efficiency significantly improved . 4
针对预测控制滚动优化命题的在线计算任务大，作者提出了一种基于分段反馈的离线预测控制算法，通过离线求解线性矩阵不等式优化命题构造分段反馈控制律，在线运行时只需实施满足条件的反馈控制律，极大地提高了控制器在线计算效率。