1. Method of eliminating ground echoes received from a predetermined area by a radar, the radar illuminating the predetermined area for a predetermined number R of transmission recurrences and over a predetermined number P of distance cells, wherein the method comprises the steps of: calculating a spatial statistical parameter of cluttered echoes received by the radar in response to recurrences over an analysis path for distance cells; and comparing a spatial variation level of the spatial statistical parameter along the analysis path, wherein the echoes are determined to be ground echoes when a level of the spatial variation is greater than a predetermined threshold.