Synthetic aperture radar imaging and processing transposition storage method and data access method

The invention discloses an efficient transposition storage method in the synthetic aperture radar imaging and processing process. The method includes a first step of dividing a synthetic aperture radar two-dimensional data matrix into a plurality of submatrix blocks with the same size, wherein data points in each submatrix block are just equal to the data points stored in one line of a double data rate 3 synchronous dynamic random access memory (DDR3 SDRAM) in number, a second step of carrying out numbering on the submatrix blocks line by line and gradually mapping data in the first submatrix block into the first line of a Bank 0 of the DDR3 SDRAM, and a third step of mapping the data in the second submatrix block into the first line of a Bank 1 of the DDR3 SDRAM line by line according to the same method, by parity of reasoning, completing mapping the first line of a last Bank and then turning to the second line of the Bank 0 until the data of all the submatrix blocks are mapped. The synthetic aperture radar imaging and processing transposition storage method is capable of solving the problem of too low transposition storage efficiency in the synthetic aperture radar imaging and processing.