The invention discloses an aircraft wake flow real-time monitoring method based on
laser radars, and the method comprises the steps: collecting the real-time wake flow data in a five-side approaching stage of a front aircraft through a plurality of
laser radar devices, and determining the space coordinates and three-dimensional contour of the edge of a wake flow region through an
edge detection algorithm; according to the coordinates of the left and right edges and the upper and lower edges of the wake flow area, the front and
tail flow areas are displayed in real time; the method comprises the following steps: intercepting a two-dimensional cross section of a front aircraft
tail flow area at a rear aircraft real-time
flight height, calculating a rolling
instability index generated by the two-dimensional cross section area to a rear aircraft wing, determining a wake flow minimum safety interval according to a preset rolling
instability index threshold value, and displaying the wake flow minimum safety interval on an
air traffic control system radar interface in real time, thereby realizing the purpose that in a five-side approach stage of an aircraft, the
flight speed of the aircraft is increased. The front aircraft wake flow area and the rear aircraft wake flow area are displayed in real time, and the minimum safety interval of the front aircraft and the rear aircraft considering the real-time
flight height is considered, so that an
air traffic controller can clearly know the real-time state and the
potential risk of the aircraft wake flow, and the wake flow monitoring accuracy and the
flight safety are improved.