Optimum estimates of signal parameters for a small-size radiothermal-emission source in the case of signals received by a two-antenna radiometer

摘要

The problem of statistically synthesizing algorithms of optimal stochastic signal processing was solved. The solution of the problem was obtained by rigorous methods of statistical solutions and estimates for parameters of probabilistic distributions. The solution obtained relates to a small size source of radiothermal radiation and estimates of its parameters in a two-antenna radiometer. The covariance matrix of errors is obtained on the basis of the Fisher information matrix. This matrix determines the limiting measurement accuracies. The apodization of the AFC by the Kravchenko-Rvachev weight functions (windows) makes it possible to reduce significantly the side lobe level of a two-antenna radiometer.