Description: Possibility of the use size of fractal dimension is considered as sign of recognition BPLA of multirotor type. It is rotined that the values of fractal dimension signals, got at sounding of BPLA, differ from the values of fractal dimensions base-line signals. However at sounding hanging up and locomotive BPLA size of fractal dimensions signals does not differ practically. It is set that distinction in character of motion BPLA it is possible to define on an extent and periodicity of appearance the least fractal dimensions.
Keywords: drone, UAV detection, fractal dimension