A multi-functional phased array radar multi-channel transceiver correction system and method

Abstract

The invention discloses a multi-functional phased array radar multi-channel transceiver correction system and method. The system includes: an antenna feeder element, a transceiver component, a correction network, a frequency synthesis and control unit, and a comprehensive information display and control unit; The comprehensive information display and control unit is connected with the frequency synthesis and control unit for inputting control instructions and displaying comprehensive information of the calibration system. The multi-channel transceiver correction method of the multifunctional phased array radar of the present invention uses the multi-channel transceiver correction system of the multifunctional phased array radar to transmit signals to the transmitting channel and the receiving channel of the primary radar array element and the secondary radar array element and the amplitude phase measurement of the received signal, and establish the amplitude correction table and phase correction table by calculating the corresponding amplitude attenuation coefficient value and phase compensation value, thus, the transmission channel and the transmission channel of the primary radar array element and the secondary radar array element can be realized. Receive channel correction.

Description

technical field [0001] The invention relates to the technical field of radar, in particular to a multi-channel transceiver correction system and method for a multifunctional phased array radar. Background technique [0002] At present, my country's civil aviation, general aviation and consumer drone industries have developed rapidly, which has brought unprecedented pressure to airspace management. However, the existing air traffic control equipment has very limited detection and perception capabilities for airborne targets, and there are many blind spots in the monitoring of cooperative targets, posing a major threat to airspace flight safety. In January 2017, a UAV "black flight" incident occurred at Hangzhou Xiaoshan Airport. The UAV had broken into the airport clearance protection area. flight safety. In May 2017, at Shuangliu Airport, drones were found repeatedly entering the clearance area, causing delays to several flights. In February 2018, an oil-electric hybrid U...

AI Technical Summary

Problems solved by technology

However, the existing air traffic control equipment has very limited detection and perception capabilities for airborne targets, and there are many blind spots in the monitoring of cooperative targets, posing a major threat to airspace flight safety.

In January 2017, a UAV "black flight" incident occurred at Hangzhou Xiaoshan Airport. The UAV had broken into the airport clearance protection area, and the flight altitude was obviously within the takeoff and landing altitude area of ​​the aircraft, which interfered with the normal flight of the aircraft and affected flight safety

In May 2017, at Shuangliu Airport, drones were found repeatedly entering the clearance area, causing delays to several flights

In February 2018, an oil-electric hybrid UAV flew illegally in Tangshan City, Hebei Province, causing huge losses to the military and civil aviation

[0006] The multi-channel correction method for active phased array radar proposed by Chen Haiqing et al [Chen Haiqing; Liu Yubo. Method for multi-channel correction of active phased array radar], using multiple receiving channels for frequency-domain quadrature receiving correction , there are many correction components, the system structure is complicated, and the cost is expensive

[0007] Yang Minglei and others proposed a phase correction method for radar transmission channels [Yang Minglei; Chen Boxiao; Xia Bijun. A radar transmission channel phase correction method], which can only realize the phase correction of the transmission channel, and the amplitude difference of the transmission channel cannot be effectively corrected , the amplitude and phase correction of the receiving channel are not considered, and the ideal transmitting and receiving beam cannot be formed, and it is difficult to effectively measure the target information

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