A method of estimating the crop yield of a cultivated plot comprising a plurality of crops, the method comprising the following steps: - positioning of a radar at ground level of the plot on a unit for moving the radar so as to be able to image the crops in the plot while the unit for moving the radar moves; said radar unit comprising: a radar configured to acquire at least one image of the cultivated plot, said radar operating in the frequency modulated continuous wave domain; a focusing unit configured to focus a beam from the radar in an acquisition direction; and the radar displacement unit configured to displace said radar within the cultivated plot from one position to another, the radar being provided with a device enabling its displacement to be known, - the process comprising the following steps carried out in a processing unit: - scanning, by means of the radar, of the cultivated plot by acquiring images of at least one crop during the movement of the unite for moving the radar, the image acquired comprising several contrast zones, the radar knowing precisely its movement during the acquisition of the images; - processing of the acquired image to identify areas of the image corresponding to a crop in order to extract at least one datum representative of the yield of the cultivated plot, said processing consisting in applying a SAR method taking advantage of the scanning of the radar antenna so as to increase the contrast between the radar signature of the crops and their environment, said processing taking into account of the displacement of the radar; - determining of the yield of the cultivated plot from the extracted data. - positioning of a radar at ground level of the plot on a unit for moving the radar so as to be able to image the crops in the plot while the unit for moving the radar moves; said radar unit comprising: a radar configured to acquire at least one image of the cultivated plot, said radar operating in the frequency modulated continuous wave domain; a focusing unit configured to focus a beam from the radar in an acquisition direction; and the radar displacement unit configured to displace said radar within the cultivated plot from one position to another, the radar being provided with a device enabling its displacement to be known, - the process comprising the following steps carried out in a processing unit: - scanning, by means of the radar, of the cultivated plot by acquiring images of at least one crop during the movement of the unite for moving the radar, the image acquired comprising several contrast zones, the radar knowing precisely its movement during the acquisition of the images; - processing of the acquired image to identify areas of the image corresponding to a crop in order to extract at least one datum representative of the yield of the cultivated plot, said processing consisting in applying a SAR method taking advantage of the scanning of the radar antenna so as to increase the contrast between the radar signature of the crops and their environment, said processing taking into account of the displacement of the radar; - determining of the yield of the cultivated plot from the extracted data. - scanning, by means of the radar, of the cultivated plot by acquiring images of at least one crop during the movement of the unite for moving the radar, the image acquired comprising several contrast zones, the radar knowing precisely its movement during the acquisition of the images; - processing of the acquired image to identify areas of the image corresponding to a crop in order to extract at least one datum representative of the yield of the cultivated plot, said processing consisting in applying a SAR method taking advantage of the scanning of the radar antenna so as to increase the contrast between the radar signature of the crops and their environment, said processing taking into account of the displacement of the radar; - determining of the yield of the cultivated plot from the extracted data. - processing of the acquired image to identify areas of the image corresponding to a crop in order to extract at least one datum representative of the yield of the cultivated plot, said processing consisting in applying a SAR method taking advantage of the scanning of the radar antenna so as to increase the contrast between the radar signature of the crops and their environment, said processing taking into account of the displacement of the radar; - determining of the yield of the cultivated plot from the extracted data.