Importance

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Abstract

One aspect of the invention relates to a method for reconstructing the spatial distribution of a reflection coefficient for waves in a sample body, comprising the following steps: parameterizing the sample body by means of N volume elements; determining M different measurement configurations of an emitting device and an associated receiving device; defining the number T of measurement points; setting up M path matrices G^[i], wherein the possible paths of reflected or scattered waves are encoded in the i-th path matrix; registering M series of measurements, wherein an excitation signal a^[i] is fed to the emitting device in the i-th series of measurements, and the associated receiving device (5) registers a series of measurements x^[i]; calculating a predictive differential vector Δx=x−G·s^[n], which contains the difference between the elements of the M registered series of measurements x^[i]_t and the predictable series of measurements G^[i]_tj·s^[n]_j; minimizing a norm of the predictive differential vector ∥Δx∥; and providing the reflection coefficients s^[n]. The invention also relates to an apparatus for carrying out the method.

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First Claim