CAJ | 학술논문

数字信号处理技术在核测量领域的广泛应用，极大地提高了核能谱测量的精确度和灵活性。我们的高速数字多道使用了一个10位80MSPS的模数转换器，转换后的采样信号噪声比较大，利用一级数字FIR滤波处理单元对信号进行处理，可以使高频采样引入的噪声得到有效滤除，提高信噪比。由于成形参数可调，数字核信号的数字成形处理（梯形成形），在强辐射能谱测量中具有良好的脉冲堆积处理能力。结合FIR滤波和数字成形的高速数字多道能谱系统可以实现核信号能谱的精确测量。
수자신호처리기술재핵측량영역적엄범응용，겁대지제고료핵능보측량적정학도화령활성。아문적고속수자다도사용료일개10위80MSPS적모수전환기，전환후적채양신호조성비교대，이용일급수자FIR려파처리단원대신호진행처리，가이사고빈채양인입적조성득도유효려제，제고신조비。유우성형삼수가조，수자핵신호적수자성형처리（제형성형），재강복사능보측량중구유량호적맥충퇴적처리능력。결합FIR려파화수자성형적고속수자다도능보계통가이실현핵신호능보적정학측량。
The widely use of digital signal processing ( DSP ) , greatly improves the accuracy and flexibility of nuclear measurement.Our High-speed digital multi-channel analyzer uses a 10 -bit 80MSPS ADC, the noise level of signal after sampling is high, so we use a FIR filter to decrease the high frequency noise caused by high-speed sampling.For shaping parameters can be freely configured, digital shaping of nuclear signal owns great performance of processing pile-up pulses.The high-speed digital multi-channel analyzer combi-ning FIR filter and digital shaping can accurately measure nuclear energy spectrum.