CUDA-based MIMO millimeter wave radar three-dimensional imaging method and system

• Main Authors: CHEN ZHENHONG, GUO WEIHUA, XIONG DI, LI WENYANG, CUI JING
• Format: Patent
• Language: Chinese; English
• Published: 07.05.2021
• 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 CUDA-based MIMO millimeter wave radar three-dimensional imaging method and system. The method comprises the steps that: automatic focusing area positioning processing is carried out on a to-be-detected area of an image through an MIMO array, wherein the MIMO array is composed of a plurality of boundary physical arrays, physical array elements are distributed in each boundary physical array and comprise transmitting array elements and receiving array elements, and the number of boundary physical array units is determined according to the range of the to-be-detected area; and target data collected by the MIMO array is read, CUDA parallel computing is adopted to accelerate the target data, processing is carried out through a plurality of CUDA kernel function modules, received data of the MIMO is imported into a GPU video memory, and signal processing is carried out. According to the invention, redundant calculation is reduced, high resolution is guaranteed, the parallel calculation effi