Electronic device and method for positioning, imaging, detecting, posture discrimination, and shape discrimination

A method for positioning, imaging, detecting, posture discrimination and shape discrimination of a target, applicable to an electronic device comprising a plurality of radars and at least one processor, wherein each of the radars comprises at least one transmitting antenna and a plurality of receiving antennas arranged in an array antenna, the method comprising:

• converting the RF signal received by the receiving antennas into a ranging profile;
• wherein the ranging profile records the distance between each of the receiving antennas and the target, and the receiving intensity corresponding to the distance;
• generating a voxel profile to indicate the relationship between the distance and the receiving intensity in three-dimensional space;
• performing a point generation algorithm to generate a plurality of points in three-dimensional space according to the voxel profile and the receiving intensity threshold, wherein the point generation algorithm comprises regarding a coordinate point and the area surrounding the coordinate point as having no point in three-dimensional space in the voxel profile when the difference between the receiving intensity of the coordinate point corresponding to the distance and the receiving intensity around the coordinate point is less than or equal to the receiving intensity threshold, and regarding the coordinate point and the area surrounding the coordinate point as the same point in three-dimensional space in the voxel profile when the difference between the receiving intensity of the coordinate point corresponding to the distance and the receiving intensity around the coordinate point is greater than the receiving intensity threshold;
• and
• performing a cluster analysis algorithm to identify a plurality of target points corresponding to the target among the points to obtain the position of the target.