Scattering center parameter extraction method based on microwave photon signals

• Main Authors: CHENG SHUNSHENG, XIE YIYUAN, FU JIXIANG, XIN YIXIN
• Format: Patent
• Language: Chinese; English
• Published: 11.08.2023
• 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 scattering center parameter extraction method based on microwave photon signals, and the method comprises the steps: converting a moving target into a rotating target, obtaining a well-focused image through motion compensation, and obtaining an attribute scattering center model; performing two-dimensional decoupling on the attribute scattering center model by using a polar coordinate algorithm to obtain a final two-dimensional wave number decoupling model; based on the final two-dimensional wave number decoupling model, transforming the attribute scattering center model to an image domain to construct a representation dictionary of the attribute scattering center model, and solving maximum posteriori estimation to construct a first cost function; and estimating the to-be-estimated parameter values in the representation dictionary based on an improved particle swarm optimization algorithm and an orthogonal matching pursuit algorithm, and determining an optimal to-be-estimated paramete