Resolving power of the physical device with nonsymmetrical spread function

摘要

We consider the resolving power of the physical device with nonsymmetrical spread function. The quality of the physical device versus parameters of its nonsymmetrical spread function is analyzed in terms of the Fourier transformation approach. It is shown that physical device with nonsymmetrical spread function has higher resolving power than physical device with symmetrical spread function with the same half-width. For two typical spread functions, Gaussian and Lorentzian, we have calculated dependence of the resolving power on the relative noise level (epsilon), from (epsilon)=1 to (epsilon)=10(sup -3) and for different ratios (kappa)=(sigma)(sub L)/(sigma) (sub R), from (kappa)=1 to (kappa)=(infinity), where (sigma)(sub L) and (sigma) (sub R) are the left and the right half-widths of the nonsymmetrical spread functions. 3 refs., 14 figs.