Radio-frequency receiver device
First Claim
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1. A radio-frequency receiver device comprising:
- a plurality of antenna elements; and
an adaptive processing portion for controlling weights to be given to respective received signals respectively received by said plurality of antenna elements, said adaptive processing portion includes;
a plurality of frequency analyzing portions configured to convert the received signals received by said plurality of antenna elements into frequency signals;
a plurality of characteristic extracting portions configured to extract characteristic signals indicative of characteristics of the received signals received by said plurality of antenna elements, on the basis of said frequency signals obtained by conversion from the received signals by said frequency analyzing portions;
a plurality of weight calculating portions configured to calculate said weights to be respectively given to the received signals, solely on the basis of said characteristic signals extracted by said characteristic extracting portions;
a plurality of inverse frequency analyzing portions configured to convert said weight calculated by said weight calculating portions, into timewise signals;
a plurality of weight multiplying portions configured to multiply the received signals respectively received by said plurality of antenna elements, by said timewise signals obtained by conversion from said weights by said inverse frequency analyzing portions; and
a signal combining portion configured to combine together the received signals multiplied by said timewise signals obtained by said weight multiplying portions,wherein said adaptive processing portion is configured to control said weights on the basis of said frequency signals obtained by conversion from said received signals by said frequency analyzing portions.
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Abstract
A radio-frequency receiver device including an adaptive processing portion for controlling weights to be given to respective received signals respectively received by a plurality of antenna elements, wherein the adaptive processing portion includes a plurality of frequency analyzing portions operable to convert the received signals received by the antenna elements, into frequency signals, and is operable to control the weights on the basis of the frequency signals obtained by conversion from the received signals by the frequency analyzing portions.
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Citations
17 Claims
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1. A radio-frequency receiver device comprising:
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a plurality of antenna elements; and an adaptive processing portion for controlling weights to be given to respective received signals respectively received by said plurality of antenna elements, said adaptive processing portion includes; a plurality of frequency analyzing portions configured to convert the received signals received by said plurality of antenna elements into frequency signals; a plurality of characteristic extracting portions configured to extract characteristic signals indicative of characteristics of the received signals received by said plurality of antenna elements, on the basis of said frequency signals obtained by conversion from the received signals by said frequency analyzing portions; a plurality of weight calculating portions configured to calculate said weights to be respectively given to the received signals, solely on the basis of said characteristic signals extracted by said characteristic extracting portions; a plurality of inverse frequency analyzing portions configured to convert said weight calculated by said weight calculating portions, into timewise signals; a plurality of weight multiplying portions configured to multiply the received signals respectively received by said plurality of antenna elements, by said timewise signals obtained by conversion from said weights by said inverse frequency analyzing portions; and a signal combining portion configured to combine together the received signals multiplied by said timewise signals obtained by said weight multiplying portions, wherein said adaptive processing portion is configured to control said weights on the basis of said frequency signals obtained by conversion from said received signals by said frequency analyzing portions. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A radio-frequency receiver device comprising:
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a plurality of antenna elements; and an adaptive processing portion for controlling weights to be given to respective received signals respectively received by said plurality of antenna elements, said adaptive processing portion includes; a plurality of frequency analyzing portions configured to convert the received signals received by said plurality of antenna elements into frequency signals; a plurality of characteristic extracting portions configured to extract characteristic signals indicative of characteristics of the received signals received by said plurality of antenna elements, on the basis of said frequency signals obtained by conversion from the received signals by said frequency analyzing portions; a plurality of inverse frequency analyzing portions configured to convert said characteristic signals extracted by said characteristic extracting portions, into timewise signals; a plurality of weight calculating portions configured to calculate said weights to be respectively given to the received signals, solely on the basis of said timewise signals obtained by conversion from said characteristic signals by said inverse frequency analyzing portions; a plurality of weight multiplying portions configured to multiply the received signals respectively received by said plurality of antenna elements, by said weights calculated by said weight calculating portions; and a signal combining portion configured to combine together the received signals multiplied by said weights calculated by said weight multiplying portions, wherein said adaptive processing portion is configured to control said weights on the basis of said frequency signals obtained by conversion from said received signals by said frequency analyzing portions. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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17. A radio-frequency receiver device comprising:
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a plurality of antenna elements; and an adaptive processing portion for controlling weights to be given to respective received signals respectively received by said plurality of antenna elements, said adaptive processing portion includes; a plurality of frequency analyzing portions configured to convert the received signals received by said plurality of antenna elements into frequency signals; a cancel-signal generating portion configured to generate cancel signals having a same frequency as that of a main carrier wave of a transmitted signal transmitted from a transmitter portion of a communication device which includes said radio-frequency receiver device; a cancel-signal control portion configured to control a phase and an amplitude of said cancel signals generated by said cancel-signal generating portion; and a plurality of cancel-signal adding portion configured to add, to the respective received signals received by said plurality of antenna elements, said cancel signals the phase and amplitude of which have been controlled by said cancel-signal control portion, wherein said adaptive processing portion is configured to control said weights solely on the basis of said frequency signals obtained by conversion from said received signals by said frequency analyzing portions, and wherein said cancel signal control portion is configured to control said phase and amplitude of the received signals, so as to minimize a signal power of said main carrier wave of the received signals to which said cancel signals have been added by said cancel-signal adding portions.
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Specification