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Long term monitoring of human micro activities along breathing is still considering challenging in noncontact vital sign measurements. A new detection method based on acceleration of micro-motion displacements is proposed through ultra-wideband radar. Micro motions responses due to different physiological conditions, including random body movement, coughing and speaking are quantitatively detected...
This letter proposes a multilevel complex source beam (MLCSB) method for electromagnetic (EM) scattering problems. The multilevel structure is obtained with the octree grouping technique. Each basis function in the nonempty group is expanded with CSBs that tightly surround the group. The interactions between far groups are expressed with interactions of these CSBs. To accelerate the computation, the...
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