Active phased array radar reception channel correction method based on fixed ground object echo

The invention relates to an active phased array radar reception channel correction method based on fixed ground object echoes, and mainly solves the problems that active phased array radar reception channel correction is complicated to operate, relies on auxiliary sources or the like in an outfield working condition. The method is realized by the following steps: firstly, applying pulse pressure to fixed ground object echoes and obtaining a pulse pressure sample set; secondly, carrying out primary election, peak value alignment and correlation screening on the pulse pressure sample set, and obtaining a to-be-corrected sample set; thirdly, calculating a correlation matrix and a noise sub-space of the to-be-corrected sample set; fourthly, establishing a convex optimization model on the basisof orthogonality of the sub-space and solving a relative error vector; and fifthly, conducting error correction on a reception channel through the relative error vector. Good estimation of amplitudephase errors of the recept