| 摘要 |
PROBLEM TO BE SOLVED: To carry out appropriate adaptive signal processing according to a change in form and posture of a terminal having an array antenna. SOLUTION: On the basis of information, such as phase difference of reception signals X1-XN received by a radio transceiver unit 21 for each antenna element, weight signals W1-WN are formed by an adaptive signal processing unit 24, and from these weight signal, the phase and amplitude of each reception signal are controlled and synthesized by a signal synthesis unit 25. A form/posture sensor 22 detects a change in form and posture of the terminal caused by the shrinkage/elongation of an antenna element, folding of the terminal, opening and closing, sliding, and up and down setting. In an adaptive algorithm used in the adaptive signal processing unit 24, a weight calculating method/adaptive algorithm storage/selection unit 23 stores the calculation method of weight WN for controlling the phase and amplitude corresponding to change information of the form and posture, selects the optimum calculation method in consideration of the space among each set antenna element, arrangement and the kind of the antenna element, and outputs it to the adaptive signal processing unit 24. COPYRIGHT: (C)2005,JPO&NCIPI
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