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针对核信号在脉冲幅度和相邻脉冲时间间隔上存在的随机性,探讨构建了一种基于C#和DSP软硬件的核能谱模拟平台。采用相关算法,产生核随机信号,并统计其涨落特性,在软硬件两方面实现对任意核能谱的精确模拟和逼真再现。可对相邻核信号产生的时间间隔作任意分布设定,还可对核能谱的刷新频率、每次刷新增加的脉冲数以及统计脉冲总数等参数进行设置。模拟结果表明,在统计的脉冲总数与原始数据量相等的情况下,谱各道相对误差可控制在0.5%以内。
In view of the randomness of the nuclear signal in the pulse amplitude and the interval of adjacent pulses, a nuclear energy spectrum simulation platform based on C # and DSP hardware and software is constructed. The correlation algorithm is used to generate the nuclear random signal and to calculate the fluctuation characteristics of the nuclear energy spectrum. Accurate simulation and realistic reproduction of any nuclear spectrum are realized in both hardware and software. The adjacent nuclear signal generation time interval can be arbitrarily set, but also on the nuclear spectrum refresh rate, each increase in the number of pulses and the total number of statistical pulse parameters set. The simulation results show that the relative error of each channel can be controlled within 0.5% under the condition that the total number of pulses is equal to the original data.