Signal baseline processing device and processing method thereof

Details Signal baseline processing device and processing method thereof Signal baseline processing device and processing method thereof

2007-12-27

2010-12-28

Feliciano, Eliseo Ramos (Department: 2857)

Data processing: measuring, calibrating, or testing

Measurement system

Measured signal processing

C702S183000, C702S193000, C702S198000

Reexamination Certificate

active

07860688

ABSTRACT:
A baseline processing device and method are provided for analyzing signals with uneven distributions of pulses and slow varying baselines. In one embodiment, the device includes an A/D sampling unit for sampling a digital counting signal to obtain sampled data, and a baseline extracting unit for sorting the N sampled data in the sampling sequence by magnitude and for outputting, among the N sample data, one sample data A with a value equal to the mid-value in the N sample data. A phase compensating unit with a width of M, to which a digital signal is input, outputs a sampled data B according to a FIFO sequence, wherein M=N/2. A first subtractor subtracts the sample data A from the sample data B and outputs the result as baseline removed data.

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Wu-Yun Xiao, Yi-Xiang Wei & Xian-Yun Ai, Digital Baseline Estimation Method for multi-channel Pulse Height Analyzing, 25(6) Nuclear Electronics & Detection Technology 601 (Nov. 2005) (Chinese).

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