Method for determining particle size distributions by nonlinear inversion of backscattered radiation

Results of a nonlinear iterative method for determination of the size distribution of spherical aerosols with known refractive indices from backscattered radiation are presented, along with a discussion of the nature of the nonlinear iterative method. The nonlinear method uses an initial guess which is built into the kernel function. By successive iterations, a correction vector is to be used in the next iteration until the correction vector is the unity vector and the process is terminated. This method, when used for the backscattering kernel, which has large information content, can tolerate errors in the measurements up to 10%.