Abstract: The present disclosures discloses a method of target feature extraction based on millimeter-wave radar echo, which mainly solves the problems that techniques in the prior art cannot fully utilize raw radar echo information to obtain more separable features and cannot accurately distinguish targets with similar physical shapes and motion states. The method is implemented as follows: acquiring measured data of targets, generating an original RD map, and removing ground clutter of the map; sequentially performing target detection, clustering and centroid condensation on the RD map after the ground clutter removal; acquiring a continuous multi-frame RD maps and carrying out the target tracking; according to the tracking trajectory, selecting candidate areas and extracting features based on a single piece of RD map and features based on two successive RD maps, respectively.

Abstract: The present disclosures discloses a method of target feature extraction based on millimeter-wave radar echo, which mainly solves the problems that techniques in the prior art cannot fully utilize raw radar echo information to obtain more separable features and cannot accurately distinguish targets with similar physical shapes and motion states. The method is implemented as follows: acquiring measured data of targets, generating an original RD map, and removing ground clutter of the map; sequentially performing target detection, clustering and centroid condensation on the RD map after the ground clutter removal; acquiring a continuous multi-frame RD maps and carrying out the target tracking; according to the tracking trajectory, selecting candidate areas and extracting features based on a single piece of RD map and features based on two successive RD maps, respectively.

Abstract: An aligning method for a liquid crystal panel, a liquid crystal panel and a display device are provided, The method includes: forming a first electrode and a first alignment film covering the first electrode on a first multilayer substrate, forming a second electrode and a second alignment film covering the second electrode on a second multilayer substrate arranged opposite to the first multilayer substrate, forming a liquid crystal layer between the first alignment film and the second alignment film, and irradiating the second multilayer substrate using ultraviolet light to align the second alignment film and the liquid crystal layer, that is, the second alignment film has a pre-tilt angle, and the first alignment film is a vertically aligned alignment film without need of alignment by partition.