Deconvolution problem for indicators of segments

Let $\mu_1,\dots,\mu_n$ be a family of compactly supported distributions on real axis. Reconstruction of a function (distribution) $f$ by given convolutions $f\ast\mu_1,\dots,f\ast\mu_n$ is called deconvolution. We consider the deconvolution problem for $n=2$ and $\mu_j=\chi_{r_j},$ $j=1,2,$ where $\chi_{r_j}$ is the indicator of segment $[-r_j, r_j].$ This problem is correctly settled only under the condition of incommensurability of numbers $r_1$and $r_2$. The main result of the article gives an inversion formula for the operator $f\rightarrow(f\ast\chi_{r_1},f\ast\chi_{r_2})$ in the indicated case.