KR100863538B1 - 10MHz 중간주파수를 이용하는 DSRC용 ASK 수신기 - Google Patents
10MHz 중간주파수를 이용하는 DSRC용 ASK 수신기 Download PDFInfo
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- KR100863538B1 KR100863538B1 KR1020080074763A KR20080074763A KR100863538B1 KR 100863538 B1 KR100863538 B1 KR 100863538B1 KR 1020080074763 A KR1020080074763 A KR 1020080074763A KR 20080074763 A KR20080074763 A KR 20080074763A KR 100863538 B1 KR100863538 B1 KR 100863538B1
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- signal
- frequency
- output
- receiver
- mixer
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D1/00—Demodulation of amplitude-modulated oscillations
- H03D1/02—Details
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
- H03D7/14—Balanced arrangements
- H03D7/1425—Balanced arrangements with transistors
- H03D7/1441—Balanced arrangements with transistors using field-effect transistors
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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
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D2200/00—Indexing scheme relating to details of demodulation or transference of modulation from one carrier to another covered by H03D
- H03D2200/0041—Functional aspects of demodulators
- H03D2200/0066—Mixing
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
Abstract
Description
Claims (1)
- 5.8 ㎓ 대역의 단거리 전용 통신(designated short range communication; DSRC) 무선 주파수(radio frequency; RF)를 수신하여 디지털 신호로 변환하는 DSRC용 진폭편이변조(Amplitude shifting keying; ASK) 수신기에 있어서,무선 주파수(radio frequency; RF) 수신 신호를 상기 RF 신호에 포함된 잡음의 증폭을 최소화하면서 증폭하는 저잡음 증폭기(Low noise amplifier; LNA);상기 LNA의 출력 신호를 주파수-하향 변환(frequency-down conversion)하여 중간 주파수(intermediate frequency; IF) 신호를 출력하는 믹서(mixer);상기 믹서의 주파수-하향 변환을 위한 주파수 신호를 생성하여, 상기 믹서로 출력하는 주파수 합성기;상기 믹서의 출력 신호 중 필요한 채널의 대역만을 통과시키는 대역통과필터(bandpass filter);상기 대역통과필터의 출력 신호를 로그 스케일(log scale)로 증폭하는 로그 증폭기(log amplifier);상기 로그 증폭기의 출력을 소정의 바이너리 임계치(binary threshold)와 비교하고, 상기 로그 증폭기의 출력이 상기 바이너리 임계치 미만인 경우 바이너리 신호(binary signal) 중 제1 값을 출력하고, 상기 로그 증폭기의 출력이 상기 바이너리 임계치 이상인 경우 상기 바이너리 신호 중 제2 값을 출력하는 검출기(detector)를 포함하며,상기 수신기는 CMOS(complementary metal-oxide semiconductor) 공정에 의하여 원칩(one-chip)으로 형성되고,상기 중간 주파수(IF)는 10㎒ 대역인, DSRC용 ASK 수신기.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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KR1020080058656 | 2008-06-20 | ||
KR20080058656 | 2008-06-20 |
Publications (1)
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KR100863538B1 true KR100863538B1 (ko) | 2008-10-15 |
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KR1020080074763A KR100863538B1 (ko) | 2008-06-20 | 2008-07-30 | 10MHz 중간주파수를 이용하는 DSRC용 ASK 수신기 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101568975B1 (ko) | 2014-02-27 | 2015-11-13 | (주)에어포인트 | Dsrc용 다중채널 수신기 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20040039240A (ko) * | 2004-04-14 | 2004-05-10 | (주)한국인포콤 | 하나의 혼합기로 송신 진폭편이 변조와 수신주파수 변환을 겸하는 무선통신 송수신 장치 |
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2008
- 2008-07-30 KR KR1020080074763A patent/KR100863538B1/ko active IP Right Grant
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20040039240A (ko) * | 2004-04-14 | 2004-05-10 | (주)한국인포콤 | 하나의 혼합기로 송신 진폭편이 변조와 수신주파수 변환을 겸하는 무선통신 송수신 장치 |
Non-Patent Citations (3)
Title |
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"5.8GHz DSRC packet communication system for ITS services", Vehicular Technology conference, September 1999 |
"ASK and Pi/4-QPSK dual mode SiGe-MMIC transceiver for 5.8GHz DSRC terminals having stabilized amplifier chain", Microwave Symposium Digest, June 2008 |
"Single-chip 5.8GHz DSRC transceiver with dual-mode of ASK and Pi/4-QPSK", Radio and Wireless symposium, January 2008 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101568975B1 (ko) | 2014-02-27 | 2015-11-13 | (주)에어포인트 | Dsrc용 다중채널 수신기 |
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