The result signal is the convolution of the input signal and the system impulse.If the width of the system impulse is more wide than the input signal, the result signal is similar the input signa.

• 量测所得信号为输入信号与量测系统脉冲响应之迴旋积，若系统脉冲响应之脉波宽甚小于输入信号之脉波宽，则量测所得之信号近似输入信号。