Spectrum-stabilizing technique of natural gamma energy specrum based on time delay estimation

In computer software spectrum-stabilizing aspect, the traditional method is based on the supposition that drifting of spectrum is linear.It uses a main peak position to adjust, but not to use other data effectively. The paper applied the relative method of time delay estimation to spectrum-stabilizing. By structuring standard characteristic spectrum peak, it carries on correlation calculation between standard characteristic spectrum peak and actual sliding spectrum peak to get the drifting number. Instance verified that the method surpasses the conventional method at the adjustment of nonlinear spectrum floats. (authors)