JP7066233B1 - Adコンバータ及びこれを用いた広帯域雑音の電力測定装置、電力スペクトル測定装置 - Google Patents
Adコンバータ及びこれを用いた広帯域雑音の電力測定装置、電力スペクトル測定装置 Download PDFInfo
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- JP7066233B1 JP7066233B1 JP2021086707A JP2021086707A JP7066233B1 JP 7066233 B1 JP7066233 B1 JP 7066233B1 JP 2021086707 A JP2021086707 A JP 2021086707A JP 2021086707 A JP2021086707 A JP 2021086707A JP 7066233 B1 JP7066233 B1 JP 7066233B1
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- 238000001228 spectrum Methods 0.000 title claims description 36
- 238000012545 processing Methods 0.000 claims abstract description 39
- 230000001186 cumulative effect Effects 0.000 claims description 12
- 238000005315 distribution function Methods 0.000 claims description 12
- 238000005259 measurement Methods 0.000 claims description 11
- 238000006243 chemical reaction Methods 0.000 claims description 10
- 238000012937 correction Methods 0.000 claims description 4
- 239000000470 constituent Substances 0.000 claims description 3
- 238000004364 calculation method Methods 0.000 abstract description 13
- 238000010586 diagram Methods 0.000 abstract description 6
- 238000009434 installation Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 12
- 238000005070 sampling Methods 0.000 description 9
- 238000004891 communication Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000010183 spectrum analysis Methods 0.000 description 1
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
- H03M1/04—Analogue/digital conversion; Digital/analogue conversion using stochastic techniques
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
- G01R29/08—Measuring electromagnetic field characteristics
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/10—Information and communication technologies [ICT] supporting adaptation to climate change, e.g. for weather forecasting or climate simulation
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- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
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- Analogue/Digital Conversion (AREA)
Abstract
Description
Claims (5)
- 測定対象が放射する雑音信号の電力測定装置であって、
測定された雑音信号としてのアナログ信号の入力電圧を判定電圧と比較するコンパレータと、
前記アナログ信号の入力電圧又は前記判定電圧の少なくともいずれか一方をシフトさせる調整部と、
前記コンパレータの比較結果に基づいて1ビットの時系列データを出力するエンコーダと、
前記時系列データに含まれる出力符号の出現頻度を演算する処理部と、
前記判定電圧が前記雑音信号の平均電圧に対してオフセットするように前記調整部を動作させる制御部と、
前記処理部によって演算された出現頻度と前記判定電圧を累積分布関数に当てはめ、入力された雑音信号の電力値としての標準偏差を求める変換部と、を備えたことを特徴とする広帯域雑音信号の電力測定装置。 - 前記調整部は、前記判定電圧を前記コンパレータの許容最大入力電圧と許容最小入力電圧の間で任意にシフトすることを特徴とする請求項1記載の広帯域雑音信号の電力測定装置。
- 前記調整部は、前記雑音信号の平均電圧を任意にシフトすることを特徴とする請求項1記載の広帯域雑音信号の電力測定装置。
- 測定対象が放射する雑音信号の電力スペクトル測定装置であって、
測定された雑音信号としてのアナログ信号の入力電圧を判定電圧と比較するコンパレータと、
前記アナログ信号の入力電圧又は前記判定電圧の少なくともいずれか一方をシフトさせる調整部と、
前記コンパレータの比較結果に基づいて1ビットの時系列データを出力するエンコーダと、
前記時系列データに含まれる出力符号の出現頻度を演算する処理部と、
前記判定電圧が前記雑音信号の平均電圧に対してオフセットするように前記調整部を動作させる制御部と、を備え、
前記処理部は、前記エンコーダから出力される時系列データを構成周波数成分に分解して電力スペクトルを取得すると共に、時系列データに含まれる出力符号の出現頻度を演算することを特徴とする広帯域雑音信号の電力スペクトル測定装置。 - 前記処理部によって演算された出現頻度と前記判定電圧を累積分布関数に当てはめ、入力された雑音信号の電力値としての標準偏差を求める変換部と、
前記変換部から取得した前記雑音信号の電力値を用いて前記処理部から取得した電力スペクトルを補正し、周波数帯域毎の電力スペクトルの絶対値を出力する補正部と、を備えたことを特徴とする請求項4記載の広帯域雑音信号の電力スペクトル測定装置。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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JP2021086707A JP7066233B1 (ja) | 2021-05-24 | 2021-05-24 | Adコンバータ及びこれを用いた広帯域雑音の電力測定装置、電力スペクトル測定装置 |
DE112022002797.5T DE112022002797T5 (de) | 2021-05-24 | 2022-03-29 | AD-Wandler, Leistungsmessvorrichtung für Breitbandrauschen unter Verwendung derselben, und Leistungsspektrum-Messvorrichtung |
PCT/JP2022/015594 WO2022249747A1 (ja) | 2021-05-24 | 2022-03-29 | Adコンバータ及びこれを用いた広帯域雑音の電力測定装置、電力スペクトル測定装置 |
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JP2021086707A JP7066233B1 (ja) | 2021-05-24 | 2021-05-24 | Adコンバータ及びこれを用いた広帯域雑音の電力測定装置、電力スペクトル測定装置 |
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JP7066233B1 true JP7066233B1 (ja) | 2022-05-13 |
JP2022179902A JP2022179902A (ja) | 2022-12-06 |
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Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59230171A (ja) * | 1983-06-13 | 1984-12-24 | Nissan Motor Co Ltd | 受信機のsn比検出装置 |
JPS645248A (en) * | 1987-06-29 | 1989-01-10 | Nec Corp | C/n measuring circuit |
JPH0320615A (ja) * | 1989-06-19 | 1991-01-29 | Fujitsu Ltd | 信号レベル検出方法および装置 |
JPH0375576A (ja) * | 1989-08-17 | 1991-03-29 | Fujitsu Ltd | 雑音電力測定方式 |
JPH0442061A (ja) * | 1990-06-06 | 1992-02-12 | Fujitsu Ltd | 信号レベル検出方法及び信号レベル検出装置 |
JP2013021687A (ja) * | 2011-07-13 | 2013-01-31 | Imec | 確率的a/d変換器及び確率的a/d変換器を用いる方法 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
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US5459319A (en) * | 1988-02-23 | 1995-10-17 | The Boeing Company | Radiation detector circuit having a 1-bit quantized output |
JP2942154B2 (ja) | 1994-10-18 | 1999-08-30 | 川崎製鉄株式会社 | 2ステップフラッシュ型adコンバータ |
JP2007318457A (ja) | 2006-05-25 | 2007-12-06 | Sony Corp | コンパレータ並びにa/d変換器 |
JP5867199B2 (ja) * | 2012-03-14 | 2016-02-24 | 富士通株式会社 | 雑音推定装置、雑音推定方法及び雑音推定用コンピュータプログラム |
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2021
- 2021-05-24 JP JP2021086707A patent/JP7066233B1/ja active Active
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2022
- 2022-03-29 WO PCT/JP2022/015594 patent/WO2022249747A1/ja active Application Filing
- 2022-03-29 DE DE112022002797.5T patent/DE112022002797T5/de active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59230171A (ja) * | 1983-06-13 | 1984-12-24 | Nissan Motor Co Ltd | 受信機のsn比検出装置 |
JPS645248A (en) * | 1987-06-29 | 1989-01-10 | Nec Corp | C/n measuring circuit |
JPH0320615A (ja) * | 1989-06-19 | 1991-01-29 | Fujitsu Ltd | 信号レベル検出方法および装置 |
JPH0375576A (ja) * | 1989-08-17 | 1991-03-29 | Fujitsu Ltd | 雑音電力測定方式 |
JPH0442061A (ja) * | 1990-06-06 | 1992-02-12 | Fujitsu Ltd | 信号レベル検出方法及び信号レベル検出装置 |
JP2013021687A (ja) * | 2011-07-13 | 2013-01-31 | Imec | 確率的a/d変換器及び確率的a/d変換器を用いる方法 |
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JP2022179902A (ja) | 2022-12-06 |
DE112022002797T5 (de) | 2024-04-04 |
WO2022249747A1 (ja) | 2022-12-01 |
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