The invention relates to the field of
radar target detection, and provides a distributed
radar target detection method and device based on iterative grids. According to the method, firstly, the plurality of grid groups corresponding to the three-dimensional detection space and the index information set corresponding to each grid group and each channel distance unit are constructed offline based on the cuboid grids of multiple sizes, so that the timeliness of iterative grid detection is effectively ensured. And then performing iterative detection on the three-dimensional detection space by using the grid groups with different grid sizes, namely continuously reducing the detection range based on the position of the target and the neighborhood range thereof obtained by the previous detection, and performing grid detection by using the grid group corresponding to the reduced detection range until a preset number of iterations is reached, according to the method, the detection efficiency is effectively improved on the premise that the detection precision is ensured. In addition, according to the invention, iteration detection can be carried out in a corresponding detection range by continuously utilizing grids with smaller sizes, and the detection precision is further improved.