KR0120726B1 - 이동통신 수신기의 잡음지수 밸런싱 자동 측정 장치(Noise Figure Balancing Automatic Measurement System of Mobile Communication’s Receiver) - Google Patents
이동통신 수신기의 잡음지수 밸런싱 자동 측정 장치(Noise Figure Balancing Automatic Measurement System of Mobile Communication’s Receiver)Info
- Publication number
- KR0120726B1 KR0120726B1 KR1019940036342A KR19940036342A KR0120726B1 KR 0120726 B1 KR0120726 B1 KR 0120726B1 KR 1019940036342 A KR1019940036342 A KR 1019940036342A KR 19940036342 A KR19940036342 A KR 19940036342A KR 0120726 B1 KR0120726 B1 KR 0120726B1
- Authority
- KR
- South Korea
- Prior art keywords
- noise
- variable attenuator
- signal
- spectrum analyzer
- high frequency
- Prior art date
Links
- 238000010295 mobile communication Methods 0.000 title claims abstract description 6
- 238000005259 measurement Methods 0.000 title abstract description 7
- 238000001228 spectrum Methods 0.000 claims abstract description 15
- 230000000694 effects Effects 0.000 abstract description 4
- 238000005562 fading Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 4
Classifications
-
- 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
- H04B1/12—Neutralising, balancing, or compensation arrangements
- H04B1/123—Neutralising, balancing, or compensation arrangements using adaptive balancing or compensation means
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
- Noise Elimination (AREA)
- Radio Transmission System (AREA)
Abstract
Description
Claims (1)
- 다이버시티 기능이 있는 이동통신 수신기의 잡음지수 밸런싱 자동 측정 장치에 있어서, 고주파 초크(202)을 통하여 가변감쇠기를 제어하는 컨트롤러(200); 상기 컨트롤러(200)의 제어에 의하여 가변감쇠기(207)의 감쇠량을 정하기 위하여 직류 전압을 가변 감쇠기로 공급하는 고주파 초크(202); 가변감쇠기(207), 믹서#1(208), 믹서#2(209), 국부발진기#1(210), 국부발진기#2(211) 및 고주파 초크(202)로부터의 제어 전압에 해당하는 가변감쇠기(207)에서의 감쇠량의 값을 저장하고 있는 이이피롬(212)로 구성되어, 수신 전치단(205)에서 입력되는 신호의 주파수를 변환하여 중간 주파수를 만들어내고 이 신호를 스펙트럼 분석기(206)로 공급하는 다운컨버터(203); 상기 다운컨버터(203)에서의 출력신호의 잡음지수를 측정하고 기록하기 위한 스펙트럼 분석기(206); 기준 신호를 발생하여 수신 전치단(205)에 입력시키는 신호발생기(204); 상기 스펙트럼 분석기(206)를 컨트롤러(200)와 인터페이스 해주는 범용 인터페이스 버스(201); 및 대역통과 여파기와 저잡음 증폭기로 구성되어 있는 수신 전치단(205)으로 구성되는 것을 특징으로 하는 잡음지수 밸런싱 측정 장치.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019940036342A KR0120726B1 (ko) | 1994-12-23 | 1994-12-23 | 이동통신 수신기의 잡음지수 밸런싱 자동 측정 장치(Noise Figure Balancing Automatic Measurement System of Mobile Communication’s Receiver) |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019940036342A KR0120726B1 (ko) | 1994-12-23 | 1994-12-23 | 이동통신 수신기의 잡음지수 밸런싱 자동 측정 장치(Noise Figure Balancing Automatic Measurement System of Mobile Communication’s Receiver) |
Publications (2)
Publication Number | Publication Date |
---|---|
KR960027550A KR960027550A (ko) | 1996-07-22 |
KR0120726B1 true KR0120726B1 (ko) | 1997-10-22 |
Family
ID=19403188
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019940036342A KR0120726B1 (ko) | 1994-12-23 | 1994-12-23 | 이동통신 수신기의 잡음지수 밸런싱 자동 측정 장치(Noise Figure Balancing Automatic Measurement System of Mobile Communication’s Receiver) |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR0120726B1 (ko) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101032300B1 (ko) * | 2010-11-30 | 2011-05-06 | 삼성탈레스 주식회사 | Dva를 이용하여 잡음 이득을 보정하는 레이더 수신 장치 및 방법 |
CN106018988A (zh) * | 2016-05-24 | 2016-10-12 | 中国电子科技集团公司第四十研究所 | 一种多级变频器件噪声系数自动扫描测量方法 |
-
1994
- 1994-12-23 KR KR1019940036342A patent/KR0120726B1/ko not_active IP Right Cessation
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101032300B1 (ko) * | 2010-11-30 | 2011-05-06 | 삼성탈레스 주식회사 | Dva를 이용하여 잡음 이득을 보정하는 레이더 수신 장치 및 방법 |
CN106018988A (zh) * | 2016-05-24 | 2016-10-12 | 中国电子科技集团公司第四十研究所 | 一种多级变频器件噪声系数自动扫描测量方法 |
Also Published As
Publication number | Publication date |
---|---|
KR960027550A (ko) | 1996-07-22 |
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