KR100793059B1 - 다중 모드의 다중 대역 신호 수신 장치 및 그 방법 - Google Patents
다중 모드의 다중 대역 신호 수신 장치 및 그 방법 Download PDFInfo
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- KR100793059B1 KR100793059B1 KR1020060112381A KR20060112381A KR100793059B1 KR 100793059 B1 KR100793059 B1 KR 100793059B1 KR 1020060112381 A KR1020060112381 A KR 1020060112381A KR 20060112381 A KR20060112381 A KR 20060112381A KR 100793059 B1 KR100793059 B1 KR 100793059B1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
- H04B1/50—Circuits using different frequencies for the two directions of communication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/16—Circuits
- H04B1/30—Circuits for homodyne or synchrodyne receivers
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H17/00—Networks using digital techniques
- H03H17/02—Frequency selective networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/0003—Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain
- H04B1/0028—Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain wherein the AD/DA conversion occurs at baseband stage
- H04B1/0032—Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain wherein the AD/DA conversion occurs at baseband stage with analogue quadrature frequency conversion to and from the baseband
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/0003—Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain
- H04B1/0028—Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain wherein the AD/DA conversion occurs at baseband stage
- H04B1/0035—Channel filtering, i.e. selecting a frequency channel within a software radio system
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/0003—Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain
- H04B1/0028—Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain wherein the AD/DA conversion occurs at baseband stage
- H04B1/0039—Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain wherein the AD/DA conversion occurs at baseband stage using DSP [Digital Signal Processor] quadrature modulation and demodulation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/005—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
- H04B1/0053—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band
- H04B1/0057—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band using diplexing or multiplexing filters for selecting the desired band
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
- H04B1/1027—Means associated with receiver for limiting or suppressing noise or interference assessing signal quality or detecting noise/interference for the received signal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/16—Circuits
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/16—Circuits
- H04B1/18—Input circuits, e.g. for coupling to an antenna or a transmission line
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Mathematical Physics (AREA)
- Superheterodyne Receivers (AREA)
Abstract
Description
Claims (6)
- RF 전치단, 저잡음 증폭기, IQ(In-phase/Quadrature-phase) 주파수 하향기, 저역 통과 필터 및 아날로그-디지털 변환기를 포함하는 직접 변환 방식의 다중 모드의 다중 대역 신호 수신 장치에 있어서,상기 아날로그-디지털 변환기에 의해 변환된 다중 모드의 기저 대역 IQ 신호의 중심 주파수의 가변에 따라 디지털 국부 발진 주파수를 변경하여 단일 모드별 기저 대역 IQ 신호로 변환하기 위한 복소 주파수 하향수단;상기 복소 주파수 하향수단에 의해 변환된 단일 모드별 기저 대역 IQ 신호를 특정 주파수 대역을 필터링하는 디지털 필터 계수를 이용하여 저역 통과 필터링(Filtering)하기 위한 가변 디지털 필터; 및상기 가변 디지털 필터에 의해 저역 통과 필터링된 단일 모드별 기저 대역 IQ 신호를 복조하기 위한 기저 대역 신호 처리수단을 포함하는 다중 모드의 다중 대역 신호 수신 장치.
- 제 1 항에 있어서,상기 복소 주파수 하향수단은,모드별로 처리하기 위해 적어도 두 개이상이 구비되고,상기 가변 디지털 필터는,모드별로 I와 Q 신호를 처리하기 위해 적어도 4개 이상이 구비되는 것을 특징으로 하는 다중 모드의 다중 대역 신호 수신 장치.
- 제 2 항에 있어서,상기 복소 주파수 하향수단은,상기 아날로그-디지털 변환기에 의해 변환된 다중 모드의 기저 대역 IQ 신호를 실수 성분 및 허수 성분으로 각각 구분하여 처리하고, 처리된 실수 성분 및 허수 성분을 합산 및 감산하여 주파수가 이동된 복소 신호를 출력하는 것을 특징으로 하는 다중 모드의 다중 대역 신호 수신 장치.
- 제 3 항에 있어서,상기 각각의 복소 주파수 하향수단은,상기 기저대역 신호 처리수단으로부터 입력된 주파수 제어 신호에 따라 중심 주파수를 가변시켜 출력하는 국부 발진기;상기 국부 발진기에 의해 생성된 주파수의 위상을 천이하는 위상 천이기;상기 아날로그-디지털 변환기로부터 입력되는 신호의 실수 성분과 상기 국부 발진기로부터 입력된 주파수를 혼합하는 제1 혼합기;상기 아날로그-디지털 변환기로부터 입력되는 신호의 실수 성분과 상기 위상 천이기에 의해 위상 천이된 주파수를 혼합하는 제2 혼합기;상기 아날로그-디지털 변환기로부터 입력되는 신호의 허수 성분과 상기 위상 천이기에 의해 위상 천이된 주파수를 혼합하는 제3 혼합기;상기 아날로그-디지털 변환기로부터 입력되는 신호의 허수 성분과 상기 국부 발진기로부터 입력된 주파수를 혼합하는 제4 혼합기;상기 제1 혼합기에 의해 혼합된 신호와 상기 제3 혼합기에 의해 혼합된 신호를 합산하는 제1 합산기; 및상기 제2 혼합기에 의해 혼합된 신호와 상기 제4 혼합기에 의해 혼합된 신호를 합산하는 제2 합산기를 포함하는 다중 모드의 다중 대역 신호 수신 장치.
- 제 1 항에 있어서,상기 가변 디지털 필터의 디지털 필터 계수는,다중 모드 주파수 대역폭에 따라 조정되는 것을 특징으로 하는 다중 모드의 다중 대역 신호 수신 장치.
- 다중 모드의 다중 대역 신호 수신 방법에 있어서,직접 변환 방식에 의해 디지털 기저 대역 IQ 신호로 변환된 RF 신호의 중심 주파수의 가변에 따라 디지털 국부 발진 주파수를 변경하여 단일 모드별 기저 대역 IQ 신호로 변환하는 단계;상기 변환된 단일 모드별 기저 대역 IQ 신호를 특정 주파수 대역을 필터링하는 디지털 필터 계수를 이용하여 저역 통과 필터링(Filtering)하는 단계; 및상기 저역 통과 필터링된 단일 모드별 기저 대역 IQ 신호를 복조하는 단계를 포함하는 다중 모드의 다중 대역 신호 수신 방법.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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KR1020060112381A KR100793059B1 (ko) | 2006-11-14 | 2006-11-14 | 다중 모드의 다중 대역 신호 수신 장치 및 그 방법 |
US11/876,884 US20080112519A1 (en) | 2006-11-14 | 2007-10-23 | Apparatus for receiving multi-band signals of multiple modes and method thereof |
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KR1020060112381A KR100793059B1 (ko) | 2006-11-14 | 2006-11-14 | 다중 모드의 다중 대역 신호 수신 장치 및 그 방법 |
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KR (1) | KR100793059B1 (ko) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101037167B1 (ko) | 2010-05-26 | 2011-05-26 | (주)아이엠피 | 디지털 앰프에서의 캐리어 노이즈 저감 장치 |
KR101158507B1 (ko) * | 2010-08-04 | 2012-06-21 | 주식회사 셀트론 | 모바일 와이맥스 무선국의 신호분석을 위한 다중대역 신호 분석기 |
KR20200143830A (ko) * | 2019-06-17 | 2020-12-28 | 한국과학기술원 | Fsk 신호 변복조 방법 및 장치 |
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US8331897B2 (en) * | 2008-04-07 | 2012-12-11 | Qualcomm Incorporated | Highly linear embedded filtering passive mixer |
US8385865B2 (en) * | 2008-08-12 | 2013-02-26 | Sony Mobile Communications Ab | Evolved EDGE receiver |
US8194600B2 (en) * | 2008-11-24 | 2012-06-05 | Qualcomm Incorporated | Air interface selection between nodes in peer-to-peer/ad-hoc networks |
JP5587210B2 (ja) * | 2008-12-04 | 2014-09-10 | パナソニック株式会社 | サンプリング回路およびこれを用いた受信機 |
FR2967326A1 (fr) | 2010-11-08 | 2012-05-11 | France Telecom | Dispositif de reception de donnees, procede de reception, programme d'ordinateur et support d'enregistrement correspondants |
US8644427B2 (en) * | 2011-08-10 | 2014-02-04 | Sigear Europe Sarl | Radio frequency receiver with dual band reception and dual ADC |
US8861620B2 (en) | 2011-10-14 | 2014-10-14 | SiTune Corporation | Full band cable receiver |
CN102611511B (zh) * | 2011-12-31 | 2014-11-05 | 中国科学技术大学 | 一种基于增强型频谱相关函数的无线信号检测方法 |
US8750174B2 (en) * | 2012-03-30 | 2014-06-10 | Broadcom Corporation | Dual carrier separation |
US20140038538A1 (en) * | 2012-08-06 | 2014-02-06 | Mediatek Inc. | Method and telecommunications device for analyzing multiple carriers in radio frequency signal |
US8964816B2 (en) | 2013-02-12 | 2015-02-24 | Qualcomm Incorporated | Re-configurable receiver architecture for cable transmission |
EP3252955A1 (en) * | 2016-06-01 | 2017-12-06 | Alcatel Lucent | Receiver device and method of operating a receiver device |
US9906384B1 (en) * | 2016-09-26 | 2018-02-27 | Nxp B.V. | Multiple-tap compensation and calibration |
US10193580B2 (en) * | 2017-03-22 | 2019-01-29 | Qualcomm Incorporated | Multi-band radio-frequency reception |
US10707972B1 (en) | 2019-03-18 | 2020-07-07 | Apple Inc. | Compensating for channel distortion during contactless communication |
US12107611B2 (en) | 2020-12-11 | 2024-10-01 | Intel Corporation | Receiver with reduced noise figure using split LNA and digital combining |
US11750235B2 (en) * | 2021-06-24 | 2023-09-05 | Analog Devices International Unlimited Company | Radio frequency receiver circuit |
KR102722501B1 (ko) | 2022-04-01 | 2024-10-29 | 한국전자통신연구원 | 위상 제어 신호들에 기초하여 입력 신호의 위상을 선형적으로 천이하는 위상 천이기 |
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2006
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2007
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KR20060062150A (ko) | 2004-12-03 | 2006-06-12 | 한국전자통신연구원 | Low-IF 방식을 이용한 디지털 초협대역 수신 장치 |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101037167B1 (ko) | 2010-05-26 | 2011-05-26 | (주)아이엠피 | 디지털 앰프에서의 캐리어 노이즈 저감 장치 |
KR101158507B1 (ko) * | 2010-08-04 | 2012-06-21 | 주식회사 셀트론 | 모바일 와이맥스 무선국의 신호분석을 위한 다중대역 신호 분석기 |
KR20200143830A (ko) * | 2019-06-17 | 2020-12-28 | 한국과학기술원 | Fsk 신호 변복조 방법 및 장치 |
KR102210638B1 (ko) * | 2019-06-17 | 2021-02-03 | 한국과학기술원 | Fsk 신호 변복조 방법 및 장치 |
US11665032B2 (en) | 2019-06-17 | 2023-05-30 | Korea Advanced Institute Of Science And Technology | Method and apparatus for modulating/demodulating an FSK signal |
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