Research on digital gauss shaping algorithm of Gamma-ray pulse based on FPGA

Digital nuclear spectrum measurement technology has become a trend, and how to achieve digital filter-shaping algorithm on the digital processing chip is one of the key technologies. Base on S-K filter model, digital Gauss shaping algorithm of digital gamma spectrum measurement is deduced and analyzed in this article, and simulated the nuclear pulse by the use of Matlab. In order to apply the algorithm in FPGA chip, this article improves and optimizes it with SD coding method. And through the experiments the correctness and feasibility of the method are verified, and the effect is good. (authors)