发明名称 |
Direct sampling type wireless receiver and method using the same |
摘要 |
There are provided a direct sampling type wireless receiver and a method using the same that reduce nonlinearity and DC offset by using a multi-port network and a carrier frequency direct conversion method with a low sampling rate of a direct sampling method in a wireless communication receiver. A direct sampling type wireless receiver according to an aspect of the invention includes: a reference signal generation unit supplying a first reference signal having a predetermined frequency and a second reference signal having a higher frequency than the first reference signal; a down sampling unit sampling an input RF signal according to the first reference signal; an analog-to-digital converting unit converting the signal sampled by the down sampling unit into a digital signal according to the second reference signal; and a multiple-input multiple-output port unit dividing the digital signal from the analog-to-digital converting unit into a plurality of digital signals, generating a plurality of carrier signals having different phases from each other by shifting phases of the digital signals, and outputting a plurality of phase signals having different phases from each other by adding the plurality of carrier signals and the plurality of digital signals to each other.
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申请公布号 |
US7953184(B2) |
申请公布日期 |
2011.05.31 |
申请号 |
US20080124881 |
申请日期 |
2008.05.21 |
申请人 |
SAMSUNG ELECTRO-MECHANICS CO., LTD. |
发明人 |
LEE SANG YUB;YANG CHANG SOO YANG;YANG WAN CHEOL |
分类号 |
H04L27/18;H04B1/30;H04L27/22 |
主分类号 |
H04L27/18 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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