The technique of dually weighted adaptive nulls-forming in two-dimensional array

By analyzing the directional function of a uniform circular array, a kind of dually-weighted signal processing method of two-dimensional null-pointing technique is presented, based on maximum signal-to-noise rule and restricted main lobe qualification. Applied to a uniform two-ring circular array, the result shows that this method is valid in adaptive null-forming in case of multi-interference, and makes the main lobe point to the direction of useful signal.