JP6684740B2 - 無線受信装置 - Google Patents
無線受信装置 Download PDFInfo
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- JP6684740B2 JP6684740B2 JP2017043208A JP2017043208A JP6684740B2 JP 6684740 B2 JP6684740 B2 JP 6684740B2 JP 2017043208 A JP2017043208 A JP 2017043208A JP 2017043208 A JP2017043208 A JP 2017043208A JP 6684740 B2 JP6684740 B2 JP 6684740B2
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- signal
- reference voltage
- analog
- voltage vref
- digital
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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
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- 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
-
- 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
- H03G3/3068—Circuits generating control signals for both R.F. and I.F. stages
-
- 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
- H04B1/0007—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 radiofrequency or intermediate frequency stage
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Circuits Of Receivers In General (AREA)
Description
図1は、第1実施形態の無線受信装置の構成を示す模式図である。
図8は、第2実施形態のAGC回路の構成を説明するための回路図である。
4:受信フィルタ、5:増幅器、6:可変利得増幅器(VGA)、
7:アナログデジタル変換器(ADC)、7a:制御ブロック、
7b:第1比較器、7c:第2比較器、7d:第3比較器、
7e:第1出力部、7f:第2出力部、8:利得制御部、
11:動作制御部、12:操作部、13:デジタルフィルタ、
14:復調部、15:チャージポンプ(CP)、15a:第1電流源、
15b:第2電流源、15c:第1切替器、15d:第2切替器、
15e:キャパシタ、16:ローパスフィルタ(LPF)
Claims (5)
- 受信信号から得られた信号を、複数の基準電圧に基づいてアナログ信号からデジタル信号に変換して出力するアナログデジタル変換器と、
前記アナログデジタル変換器から出力された信号に基づいて、前記基準電圧のうちの少なくとも1つを制御する制御部と、
を備え、
前記アナログデジタル変換器は、前記デジタル信号の値の振幅を示す第1信号と、前記デジタル信号の値の符号を示す第2信号とを出力し、
前記制御部は、前記第1信号に基づいて、前記基準電圧のうちの少なくとも1つを制御する、
無線受信装置。 - 前記受信信号から得られた信号を増幅する低雑音増幅器と、
前記低雑音増幅器により増幅された信号を増幅し、前記アナログデジタル変換器に出力する可変利得増幅器とをさらに備え、
前記制御部は、前記アナログデジタル変換器から出力された信号に基づいて、前記基準電圧のうちの少なくとも1つと、前記可変利得増幅器の利得とを制御する、
請求項1に記載の無線受信装置。 - 前記受信信号から得られた信号を増幅する低雑音増幅器と、
前記低雑音増幅器により増幅された信号を増幅し、前記アナログデジタル変換器に出力する増幅器とをさらに備え、
前記制御部は、前記アナログデジタル変換器から出力された信号に基づいて、前記基準電圧のうちの少なくとも1つを制御する、
請求項1に記載の無線受信装置。 - 前記制御部は、
第1および第2電流源と、
前記第1および第2電流源の間に直列に接続された第1および第2切替器とを備え、
前記第1切替器は、前記第1信号に応じて動作し、
前記第2切替器は、前記第1信号の反転信号に応じて動作し、
前記第1切替器と前記第2切替器との間のノードから、前記基準電圧のうちの少なくとも1つを制御する制御信号を出力する、請求項1から3のいずれか1項に記載の無線受信装置。 - 前記アナログデジタル変換器は、
前記基準電圧を生成し、前記基準電圧のうちの少なくとも1つを変化させる制御ブロックと、
前記受信信号から得られた信号と前記基準電圧とを比較する複数の比較器と、
前記比較器からの信号に基づいて前記デジタル信号を生成する出力部と、
を備える請求項1から4のいずれか1項に記載の無線受信装置。
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017043208A JP6684740B2 (ja) | 2017-03-07 | 2017-03-07 | 無線受信装置 |
| US15/688,575 US10243602B2 (en) | 2017-03-07 | 2017-08-28 | Wireless receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017043208A JP6684740B2 (ja) | 2017-03-07 | 2017-03-07 | 無線受信装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2018148464A JP2018148464A (ja) | 2018-09-20 |
| JP6684740B2 true JP6684740B2 (ja) | 2020-04-22 |
Family
ID=63445195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2017043208A Active JP6684740B2 (ja) | 2017-03-07 | 2017-03-07 | 無線受信装置 |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US10243602B2 (ja) |
| JP (1) | JP6684740B2 (ja) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI798996B (zh) * | 2021-12-14 | 2023-04-11 | 瑞昱半導體股份有限公司 | 功率放大器 |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61112414A (ja) * | 1984-11-06 | 1986-05-30 | Nec Corp | 自動レベル制御回路 |
| CA2175860C (en) * | 1995-06-02 | 2001-03-27 | Randall Wayne Rich | Apparatus and method for optimizing the quality of a received signal in a radio receiver |
| JP2001274705A (ja) * | 2000-03-24 | 2001-10-05 | Sanyo Electric Co Ltd | 受信装置 |
| US7773702B2 (en) * | 2004-05-03 | 2010-08-10 | Qualcomm Incorporated | Gain control for a receiver in a multi-carrier communication system |
| KR100922947B1 (ko) * | 2006-03-30 | 2009-10-23 | 삼성전자주식회사 | 무선통신 시스템의 수신기에서 이득 제어 방법 및 장치 |
| JP2009088972A (ja) | 2007-09-28 | 2009-04-23 | Toshiba Corp | 無線通信の受信装置 |
| JP4901679B2 (ja) * | 2007-10-02 | 2012-03-21 | 株式会社東芝 | 無線送受信装置及び無線送信方法 |
| JP5206290B2 (ja) * | 2008-01-24 | 2013-06-12 | 日本電気株式会社 | 移動体通信用受信機 |
| EP2731265B1 (en) | 2011-07-08 | 2021-04-07 | NEC Corporation | Reception device, and gain control method |
| CN103227615B (zh) | 2012-01-31 | 2015-09-09 | 富士通株式会社 | 自动增益控制装置和方法、功率调整装置和无线发射系统 |
| US9125158B2 (en) * | 2012-02-06 | 2015-09-01 | Qualcomm Incorporated | Wideband detection of narrowband trigger signals |
| US8675789B2 (en) * | 2012-04-23 | 2014-03-18 | Cambridge Silicon Radio Limited | Receiver with variable gain elements and automatic gain control to maintain a positive signal to noise ratio margin |
| JP2015115655A (ja) * | 2013-12-09 | 2015-06-22 | 株式会社東芝 | アナログデジタル変換器およびイメージセンサ |
| US9397680B2 (en) * | 2014-10-31 | 2016-07-19 | eTopus Technology Inc. | Receiver with adjustable reference voltages |
-
2017
- 2017-03-07 JP JP2017043208A patent/JP6684740B2/ja active Active
- 2017-08-28 US US15/688,575 patent/US10243602B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| JP2018148464A (ja) | 2018-09-20 |
| US10243602B2 (en) | 2019-03-26 |
| US20180262223A1 (en) | 2018-09-13 |
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