Phased array radar target echo signal simulation system

• Main Authors: LI DAISONG, LIU QINGBAO, GUAN WENSHUO, HU ZHIYOU, WANG BIN
• Format: Patent
• Language: Chinese; English
• Published: 11.05.2021
• 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; PHYSICS; RADIO DIRECTION-FINDING; RADIO NAVIGATION; TESTING

The invention discloses a phased array radar target echo signal simulation system. The simulation system comprises a radio frequency signal down-conversion unit, a radio frequency signal up-conversion unit, an intermediate frequency signal processing unit and the like. When the system works, if a radar emission signal is received, a radar intermediate frequency signal is collected for signal measurement, a radar signal is stored, the delay and Doppler information is superposed, and a coherent guided target echo signal and a coherent guided height echo signal are generated; and if the signal is actively generated, according to the type of the generated signal, the digital up-conversion is carried out on the baseband SAR echo data to obtain an SAR intermediate frequency echo signal, or a linear frequency modulation signal is generated actively, or an intermediate frequency dot frequency continuous signal is generated actively. According to the invention, various target echo signal forms, such as SAR echoes, coh