New methods to remove baseline drift in trapezoidal pulse shaping

作者：Hong Xu; Ma Ying-Jie^*; Zhou Jian-Bin; Chen Tie-Guang; Hu Yun-Chuan; Wan Xin-Feng; Du Xin

来源：Nuclear Science and Techniques, 2015, 26(5): 050402.

DOI：10.13538/j.1001-8042/nst.26.050402

• Baseline drift removal
• Trapezoidal pulse shaping
• z transform method

Trapezoidal pulse shaping algorithm is widely applied to improve signal-to-noise ratio (SNR), throughput and energy resolution with the properties of noise suppression, pile-up pulse separation and ballistic deficit correction. The algorithm can be acquired by z transform method which is easier for derivation. However, the baseline drift of trapezoidal pulse appears because the noise superimposes on the input signal. In this paper, two new methods based on convergence analysis and noise suppression are proposed to remove the baseline drift resulting from trapezoidal pulse shaping. Simulations and experimental tests are carried out to verify the methods. The results demonstrate that the proposed methods can remove baseline drift in trapezoidal pulse shaping.

• 出版日期2015-10
• 单位成都理工大学