ABSTRACT
In this paper, a new method for inversing frozen soil temperature field on the spot is proposed. The temperature field is estimated by acoustic velocity distribution, which can be calculated by Acoustic Computer Tomography (ACT). In consideration of the characteristic of temperature filed, Heat Exchange Operator (HEO) is introduced in the SIRT iterative process of ACT, which can improve the accuracy of temperature inversion. At last an example of frozen wall temperature field inversion is given to illuminate the effect of the method.
