JP5615203B2 - 自動利得制御装置 - Google Patents
自動利得制御装置 Download PDFInfo
- Publication number
- JP5615203B2 JP5615203B2 JP2011039019A JP2011039019A JP5615203B2 JP 5615203 B2 JP5615203 B2 JP 5615203B2 JP 2011039019 A JP2011039019 A JP 2011039019A JP 2011039019 A JP2011039019 A JP 2011039019A JP 5615203 B2 JP5615203 B2 JP 5615203B2
- Authority
- JP
- Japan
- Prior art keywords
- gain control
- signal
- vga
- automatic gain
- baseband signal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000001514 detection method Methods 0.000 claims description 50
- 230000003321 amplification Effects 0.000 claims description 14
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 14
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 238000004364 calculation method Methods 0.000 description 20
- 238000000034 method Methods 0.000 description 19
- 238000010586 diagram Methods 0.000 description 12
- 238000004891 communication Methods 0.000 description 11
- 238000005259 measurement Methods 0.000 description 11
- 238000012545 processing Methods 0.000 description 5
- 238000010187 selection method Methods 0.000 description 4
- 229920006395 saturated elastomer Polymers 0.000 description 3
- 238000005070 sampling Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- RDYMFSUJUZBWLH-UHFFFAOYSA-N endosulfan Chemical compound C12COS(=O)OCC2C2(Cl)C(Cl)=C(Cl)C1(Cl)C2(Cl)Cl RDYMFSUJUZBWLH-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010845 search algorithm Methods 0.000 description 1
Images
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
- H04B1/16—Circuits
- H04B1/30—Circuits for homodyne or synchrodyne receivers
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/20—Automatic control
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/68—Combinations of amplifiers, e.g. multi-channel amplifiers for stereophonics
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/20—Automatic control
- H03G3/30—Automatic control in amplifiers having semiconductor devices
- H03G3/3052—Automatic control in amplifiers having semiconductor devices in bandpass amplifiers (H.F. or I.F.) or in frequency-changers used in a (super)heterodyne receiver
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Control Of Amplification And Gain Control (AREA)
- Circuits Of Receivers In General (AREA)
Description
100 LNA
200 I系統用ミキサ回路
210 I系統用VGA
220 I系統用ADC
230 I系統ベースバンド信号
240 I系統用オーバーレンジ検出部
300 Q系統用ミキサ回路
310 Q系統用VGA
320 Q系統用ADC
330 Q系統ベースバンド信号
340 Q系統用オーバーレンジ検出部
400、410 自動利得制御部
401、405 制御部
402 電力計算部
403 タイマ
404 OR回路
406、407 振幅検出部
500 オフセット設定部
Lo ローカル信号
PSC 移相器
RF 受信信号
Claims (2)
- 高周波の受信信号と所定周波数帯域の第1ローカル信号とを基に、I系統ベースバンド信号を生成する第1周波数変換部と、
前記高周波の受信信号と、前記第1ローカル信号と90°位相が異なる第2ローカル信号とを基に、Q系統ベースバンド信号を生成する第2周波数変換部と、
前記生成されたI系統ベースバンド信号を増幅する第1可変増幅部と、
前記生成されたQ系統ベースバンド信号を増幅する第2可変増幅部と、
前記増幅されたI系統ベースバンド信号をディジタル信号に変換する第1AD変換部と、
前記増幅されたQ系統ベースバンド信号をディジタル信号に変換する第2AD変換部と、
前記第1AD変換部のオーバーレンジを検出する第1オーバーレンジ検出部と、
前記第2AD変換部のオーバーレンジを検出する第2オーバーレンジ検出部と、
前記オーバーレンジ、前記I系統ベースバンド信号、又は前記Q系統ベースバンド信号の検出情報を基に、前記第1可変増幅部及び第2可変増幅部に設定する利得を選択する自動利得制御部と、
前記選択された利得に所定のオフセットを与えた利得を、前記第1可変増幅部又は前記第2可変増幅部の一方のみに設定するオフセット設定部と、を備える自動利得制御装置。 - 請求項1に記載の自動利得制御装置であって、
前記自動利得制御部は、前記I系統ベースバンド信号又は前記Q系統ベースバンド信号がオーバーレンジしている場合、前記第1可変増幅部及び第2可変増幅部に設定する共通の利得を選択し、
前記オフセット設定部は、粗調整における、
最初の利得制御において、前記選択された利得に所定のオフセットを与えた利得を、前記第1可変増幅部又は前記第2可変増幅部の一方のみに設定し、
2回目以降の利得制御において、前記選択された利得に所定のオフセットを与えない
自動利得制御装置。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011039019A JP5615203B2 (ja) | 2011-02-24 | 2011-02-24 | 自動利得制御装置 |
US13/814,795 US8909183B2 (en) | 2011-02-24 | 2012-01-31 | Automatic gain control device |
PCT/JP2012/000644 WO2012114656A1 (ja) | 2011-02-24 | 2012-01-31 | 自動利得制御装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011039019A JP5615203B2 (ja) | 2011-02-24 | 2011-02-24 | 自動利得制御装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2012175687A JP2012175687A (ja) | 2012-09-10 |
JP5615203B2 true JP5615203B2 (ja) | 2014-10-29 |
Family
ID=46720452
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2011039019A Expired - Fee Related JP5615203B2 (ja) | 2011-02-24 | 2011-02-24 | 自動利得制御装置 |
Country Status (3)
Country | Link |
---|---|
US (1) | US8909183B2 (ja) |
JP (1) | JP5615203B2 (ja) |
WO (1) | WO2012114656A1 (ja) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2508911A (en) * | 2012-12-14 | 2014-06-18 | Renesas Mobile Corp | Calibration of a frequency converter, based on non-dc measurements, to reduce an output dc component arising from local oscillator leakage and self-mixing |
JP6150552B2 (ja) * | 2013-02-22 | 2017-06-21 | 日置電機株式会社 | 波形測定装置、電流測定装置および電力測定装置 |
JP2015154306A (ja) | 2014-02-17 | 2015-08-24 | ソニー株式会社 | 自動利得制御装置、自動利得制御方法、および受信装置 |
US9647646B2 (en) | 2014-04-22 | 2017-05-09 | Qualcomm Incorporated | Systems and methods for gain and offset control |
JP6392106B2 (ja) | 2014-12-16 | 2018-09-19 | 株式会社東芝 | 受信機および電圧制御発振器 |
KR101790960B1 (ko) * | 2015-12-30 | 2017-11-20 | 어보브반도체 주식회사 | 개선된 자동 이득 제어를 사용하는 블루투스 스마트 수신 방법 및 장치 |
US20210167743A1 (en) * | 2016-01-05 | 2021-06-03 | The Trustees Of Dartmouth College | Fast amplitude detector and automatic gain control |
US10594281B1 (en) * | 2019-03-04 | 2020-03-17 | Ciena Corporation | Receiver automatic gain control systems and methods for asymmetrical or unbalanced constellations |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5917865A (en) * | 1996-12-31 | 1999-06-29 | Lucent Technologies, Inc. | Digital automatic gain control employing two-stage gain-determination process |
US6259391B1 (en) * | 1999-06-18 | 2001-07-10 | Nortel Networks Limited | Analog gain control adjustment using a probabilistic algorithm |
JP3824871B2 (ja) | 2001-02-19 | 2006-09-20 | 三菱電機株式会社 | 自動利得制御装置および復調器 |
JP2003110385A (ja) * | 2001-10-01 | 2003-04-11 | Hitachi Ltd | 通信装置 |
US6993291B2 (en) * | 2001-10-11 | 2006-01-31 | Nokia Corporation | Method and apparatus for continuously controlling the dynamic range from an analog-to-digital converter |
US6873833B2 (en) * | 2003-03-27 | 2005-03-29 | Interdigital Technology Corporation | Method and apparatus for estimating and controlling initial time slot gain in a wireless communication system |
US7676208B2 (en) * | 2005-12-09 | 2010-03-09 | Electronics And Telecommunications Research Institute | Automatic gain control device having variable gain control interval and method thereof |
JP2009065312A (ja) * | 2007-09-05 | 2009-03-26 | Fuji Electric Device Technology Co Ltd | 無線受信装置 |
US8548105B2 (en) | 2008-08-05 | 2013-10-01 | Qualcomm Incorported | Joint time-frequency automatic gain control for wireless communication |
-
2011
- 2011-02-24 JP JP2011039019A patent/JP5615203B2/ja not_active Expired - Fee Related
-
2012
- 2012-01-31 US US13/814,795 patent/US8909183B2/en not_active Expired - Fee Related
- 2012-01-31 WO PCT/JP2012/000644 patent/WO2012114656A1/ja active Application Filing
Also Published As
Publication number | Publication date |
---|---|
WO2012114656A1 (ja) | 2012-08-30 |
US8909183B2 (en) | 2014-12-09 |
US20130127529A1 (en) | 2013-05-23 |
JP2012175687A (ja) | 2012-09-10 |
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