Nuclear Science and Techniques

《核技术》(英文版) ISSN 1001-8042 CN 31-1559/TL     2019 Impact factor 1.556

Nuclear Science and Techniques ›› 2015, Vol. 26 ›› Issue (5): 050402 doi: 10.13538/j.1001-8042/nst.26.050402

• NUCLEAR ELECTRONICS AND INSTRUMENTATION • Previous Articles     Next Articles

New methods to remove baseline drift in trapezoidal pulse shaping

HONG Xu,1 MA Ying-Jie,1 ZHOU Jian-Bin,1 CHEN Tie-Guang, 2 HU Yun-Chuan,1 WAN Xin-Feng,1 DU Xin 1   

  1. 1College of Nuclear Technology and Automation Engineering, Chengdu University of Technology, Chengdu 610059, China
    2Chengdu Gaotong Isotope CO., LTD. (CNNC), Chengdu 610000, China
  • Contact: MA Ying-Jie E-mail:myj@cdut.edu.cn
  • Supported by:

    Supported by National High Technology Research and Development Program of China (863 Program) (No. 2012AA061804-03)

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HONG Xu, MA Ying-Jie, ZHOU Jian-Bin, CHEN Tie-Guang, HU Yun-Chuan, WAN Xin-Feng, DU Xin . New methods to remove baseline drift in trapezoidal pulse shaping.Nuclear Science and Techniques, 2015, 26(5): 050402     doi: 10.13538/j.1001-8042/nst.26.050402

Abstract:

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.

Key words: Baseline drift removal, Trapezoidal pulse shaping, z transform method