Airborne active phased array radar antenna in-situ detection method

• Main Authors: CHEN XIAOHU, JIANG TAO, ZHU JINZHONG, LU TIANXIN
• Format: Patent
• Language: Chinese; English
• Published: 27.11.2020
• Subjects: ANALOGOUS ARRANGEMENTS USING OTHER WAVES; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES; MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; PHYSICS; RADIO DIRECTION-FINDING; RADIO NAVIGATION; TESTING

The invention discloses an airborne active phased array radar antenna in-situ detection method, and relates to the technical field of radars. According to the method, a component corresponding to a corresponding antenna unit in a constructed antenna pattern synthesis representation formula is set as 0 based on read BIT information of each T/R assembly by combining each radar antenna self-checkingoperation, a real-time antenna pattern is obtained, an antenna efficiency index variation is determined based on the real-time antenna pattern, and antenna in-situ detection is carried out. Accordingto the method, in-situ detection is not carried out directly according to an antenna self-checking BIT result, instead, the reduction condition of the antenna efficiency index is obtained based on theantenna self-checking result, the antenna performance reduction condition is visually judged, in-situ detection is carried out according to the antenna performance reduction condition, fault reporting information which has no