Low-altitude target detection method and system based on multi-source detector

The invention discloses a low-altitude target detection method and system based on a multi-source detector. The method comprises the steps that each detection station device detects and measures the distance of an obtained image of a target appearing in a view field; the position information of the target relative to each detection station device then is acquired; each detection station device uploads detected target position information to the command and control subsystem; the command and control subsystem determines a target geocentric coordinate system coordinate in combination with the target position information uploaded by each detection station device, converts the target geocentric coordinate into target GPS information, and converts the target GPS information into angle information of the target relative to each detection station device; the command and control subsystem determines that the detected target meets a preset requirement according to the target GPS information; and the angle information