BANDPASS SAMPLING RECEIVER, AND METHOD FOR DESIGNING AND RECONSTRUCTING A FILTER THEREOF

Title:

BANDPASS SAMPLING RECEIVER, AND METHOD FOR DESIGNING AND RECONSTRUCTING A FILTER THEREOF

Document Type and Number:

WIPO Patent Application WO/2012/039575

Kind Code:

A3

Abstract:

The present invention relates to a bandpass sampling receiver, comprising: an analog-digital converter which converts a wireless analog signal to a digital baseband signal; and a complex baseband signal extraction unit which generates a first path signal and a second path signal from the digital baseband signal, and extracts a complex baseband signal using a relative sample delay difference between the first and second path signals. Here, the first path signal is obtained by sample-delaying the digital baseband signal and down-sampling the sample-delayed signal, and the second path signal is obtained by down-sampling the digital baseband signal without sample-delaying the digital baseband signal. In addition, the complex baseband signal extraction unit includes: a first delay element which sample-delays the digital baseband signal converted by the analog-digital converter; a first down-sampler which down-samples the delayed result of the first delay element to generate the first path signal; a second down-sampler which down-samples the digital baseband signal converted by the analog-digital converter to generate the second path signal; a first digital filter which filters the first path signal; a second digital filter which filters the second path signal; and an adder which adds the filtered result of the first digital filter and the filtered result of the second digital filter together to output the complex baseband signal.

Inventors:

SEO SEOK (KR)
KIM JIN UP (KR)

Application Number:

PCT/KR2011/006933

Publication Date:

May 18, 2012

Filing Date:

September 20, 2011

Export Citation:

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Assignee:

KOREA ELECTRONICS TELECOMM (KR)
SEO SEOK (KR)
KIM JIN UP (KR)

International Classes:

H04B1/10; H03H17/02

Foreign References:

KR100373299B1	2003-02-25
KR20060110270A	2006-10-24
KR20060121126A	2006-11-28
KR20060116828A	2006-11-15

Other References: