JPH05502780A - 適応受信機フィルタ,信号強度およびビット誤り率検知を用いた、干渉削減方法 - Google Patents
適応受信機フィルタ,信号強度およびビット誤り率検知を用いた、干渉削減方法Info
- Publication number
- JPH05502780A JPH05502780A JP3516042A JP51604291A JPH05502780A JP H05502780 A JPH05502780 A JP H05502780A JP 3516042 A JP3516042 A JP 3516042A JP 51604291 A JP51604291 A JP 51604291A JP H05502780 A JPH05502780 A JP H05502780A
- Authority
- JP
- Japan
- Prior art keywords
- error rate
- signal
- bit error
- filter
- interference
- 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.)
- Granted
Links
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
- H04B1/1646—Circuits adapted for the reception of stereophonic signals
- H04B1/1653—Detection of the presence of stereo signals and pilot signal regeneration
-
- 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
- H04B1/10—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
- H04B2001/1054—Means associated with receiver for limiting or suppressing noise or interference assessing signal quality or detecting noise/interference for the received signal by changing bandwidth
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Noise Elimination (AREA)
Abstract
Description
Claims (6)
- 1.可変帯域幅被受信チャンネル・フィルタを有して、望ましい信号を通過させ 、望ましくない信号を拒否する無線受信機であって: 所定量の干渉を検出する手段;および 前記検出手段に応答して、可変帯域幅被受信チャンネル選択フィルタの帯域幅を 調整する手段; によって構成されることを特徴とする無線受信機。
- 2.所定量の干渉を検出する前記手段が:受信機によって受信される望ましい信 号の信号強度に相関する値を有する第1信号を発生する手段;望ましい信号のビ ット誤り率を判定する手段;前記第1信号を所定の閾値と比較する第1手段;前 記被判定ビット誤り率を所定のビット誤り率と比較する第2手段;および 前記第1比較手段と、前記第2比較手段とに応答して、前記第1信号値が前記所 定閾値を越え、前記被判定ビット誤り率が前記所定ビット誤り率を越えるときに 、出力信号を発生する手段; によってさらに構成されることを特徴とする請求項1記載の無線受信機。
- 3.可変帯域幅被受信チャンネル選択フィルタの帯域幅を調整する前記手段が、 可変帯域幅被受信チャンネル選択フィルタの帯域幅を小さくする手段よりさらに 構成されることを特徴とする請求項1記載の無線受信機。
- 4.可変帯域幅被受信チャンネル・フィルタを有する無線受信機内で、隣接チャ ンネルの干渉を小さくする方法であって: 所定量の干渉を検出する段階;および 前記検出段階に応答して、可変帯域幅被受信チャンネル選択フィルタの帯域幅を 調整する段階; によって構成されることを特徴とする方法。
- 5.所定量の干渉を検出する前記段階が:受信機によって受信された望ましい信 号の信号強度に相関する値を有する第1信号を発生する段階;望ましい信号のビ ット誤り率を判定する段階;前記第1信号値を所定の閾値と比較する段階;前記 被判定ビット誤り率を所定のビット誤り率と比較する段階;および 前記第1信号値が前記所定閾値を越え、前記被判定ビット誤り率が前記所定のビ ット誤り率を越えるときに、出力信号を発生する段階; によってさらに構成されることを特徴とする請求項4記載の方法。
- 6.可変帯域幅被受信チャンネル選択フィルタの帯域幅を調整する前記段階が、 可変帯域幅被受信チャンネル選択フィルタの帯域幅を小さくする段階によってさ らに構成されることを特徴とする、請求項5記載の方法。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/590,415 US5287556A (en) | 1990-09-28 | 1990-09-28 | Interference reduction using an adaptive receiver filter, signal strength, and BER sensing |
US590,415 | 1990-09-28 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH05502780A true JPH05502780A (ja) | 1993-05-13 |
JP2663716B2 JP2663716B2 (ja) | 1997-10-15 |
Family
ID=24362180
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3516042A Expired - Lifetime JP2663716B2 (ja) | 1990-09-28 | 1991-09-03 | 適応受信機フィルタ,信号強度およびビット誤り率検知を用いた、干渉削減方法 |
Country Status (8)
Country | Link |
---|---|
US (1) | US5287556A (ja) |
JP (1) | JP2663716B2 (ja) |
CA (1) | CA2071866C (ja) |
DE (1) | DE4192408C1 (ja) |
GB (1) | GB2254757B (ja) |
HK (1) | HK39297A (ja) |
MX (1) | MX9101263A (ja) |
WO (1) | WO1992006540A1 (ja) |
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JPH10276125A (ja) * | 1997-03-28 | 1998-10-13 | Matsushita Electric Ind Co Ltd | 移動無線受信装置 |
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JP4000088B2 (ja) * | 2003-05-09 | 2007-10-31 | 松下電器産業株式会社 | 無線受信装置および受信フィルタリング方法 |
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JP4561154B2 (ja) * | 2004-04-13 | 2010-10-13 | パナソニック株式会社 | 高周波装置 |
EP1958406A1 (en) * | 2005-12-01 | 2008-08-20 | Thomson Licensing | Method and apparatus for determining frequency offset in a receiver |
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CN103685095B (zh) * | 2013-12-18 | 2017-01-04 | 北京创毅视讯科技有限公司 | 一种实现邻道干扰抑制的方法和装置 |
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JPS5440011A (en) * | 1977-09-06 | 1979-03-28 | Boeicho Gijutsu Kenkyu Honbuch | Interference eliminating system |
JPH02194736A (ja) * | 1989-01-23 | 1990-08-01 | Alpine Electron Inc | Fmラジオ受信機 |
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-
1990
- 1990-09-28 US US07/590,415 patent/US5287556A/en not_active Expired - Lifetime
-
1991
- 1991-09-03 DE DE4192408A patent/DE4192408C1/de not_active Expired - Lifetime
- 1991-09-03 CA CA002071866A patent/CA2071866C/en not_active Expired - Fee Related
- 1991-09-03 WO PCT/US1991/006231 patent/WO1992006540A1/en active Application Filing
- 1991-09-03 JP JP3516042A patent/JP2663716B2/ja not_active Expired - Lifetime
- 1991-09-25 MX MX9101263A patent/MX9101263A/es unknown
-
1992
- 1992-05-28 GB GB9211343A patent/GB2254757B/en not_active Expired - Lifetime
-
1997
- 1997-04-03 HK HK39297A patent/HK39297A/xx not_active IP Right Cessation
Patent Citations (2)
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---|---|---|---|---|
JPS5440011A (en) * | 1977-09-06 | 1979-03-28 | Boeicho Gijutsu Kenkyu Honbuch | Interference eliminating system |
JPH02194736A (ja) * | 1989-01-23 | 1990-08-01 | Alpine Electron Inc | Fmラジオ受信機 |
Also Published As
Publication number | Publication date |
---|---|
WO1992006540A1 (en) | 1992-04-16 |
JP2663716B2 (ja) | 1997-10-15 |
HK39297A (en) | 1997-04-11 |
MX9101263A (es) | 1992-05-04 |
GB2254757A (en) | 1992-10-14 |
GB2254757B (en) | 1995-01-11 |
CA2071866A1 (en) | 1992-03-29 |
DE4192408C1 (de) | 1997-09-18 |
GB9211343D0 (en) | 1992-07-22 |
US5287556A (en) | 1994-02-15 |
CA2071866C (en) | 1996-10-29 |
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