CPC G01S 7/414 (2013.01) [G01S 7/006 (2013.01); H04W 64/00 (2013.01)] | 5 Claims |
1. An iterative focused millimeter wave integrated communication and sensing method, which is applied to uplink wireless communication, comprising the following steps:
S1, in any time slot, receiving, by a base station, pilot frequency sequence signals with a certain length sent by all active users in an environment to obtain receiving signals, wherein the receiving signals are signals after the pilot frequency sequence signals are influenced by environment;
S2, converting an environmental sensing problem of a specific target into a compressed sensing reconstruction problem using the receiving signals in the step S1 based on a multi-beam multi-carrier millimeter wave channel model;
S3, solving the compressed sensing reconstruction problem in the step S2 based on an approximate message passing method to obtain a coarse environmental sensing initial result;
S4, selecting a predetermined region as a region of interest from whole environment based on the coarse environmental sensing initial result, and dividing and determining a target object in the region of interest according to a background determining method and removing influence of background scatters outside the region of interest on the receiving signals to obtain receiving signals corresponding to the target object;
S5, calculating an environmental sensing result based on the receiving signals corresponding to the target object obtained in the step S4; and
S6, repeating the steps S4 and S5 in sequence until an algorithm convergence, to obtain a final environment sensing result.
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