Airborne three-dimensional synthetic aperture radar imaging system based on transmitted beam scanning

The invention discloses an airborne three-dimensional synthetic aperture radar imaging system based on transmitted beam scanning. In the current three-dimensional synthetic aperture radar imaging system, echo data volume is large, imaging processing is complex and timeliness is low. Using the airborne three-dimensional synthetic aperture radar imaging system of the invention can solve the above problems. In the invention, a radar transmitter generates narrow wave beams possessing different preset orientations in a vertical heading by using a transmitted beam forming technology. A phased-arrayantenna, which is arranged vertically to the heading in a flight plane, successively transmits the narrow wave beams generated by the radar transmitter one by one. Narrow wave beam scanning to the vertical heading can be performed in every direction at any time. The echo is received by a single array element of the phased-array antenna and is sent to a radar receiver so as to complete acquisitionof single channel echo dat