JP2008501289A - デジタイザ構成 - Google Patents
デジタイザ構成 Download PDFInfo
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- JP2008501289A JP2008501289A JP2007514959A JP2007514959A JP2008501289A JP 2008501289 A JP2008501289 A JP 2008501289A JP 2007514959 A JP2007514959 A JP 2007514959A JP 2007514959 A JP2007514959 A JP 2007514959A JP 2008501289 A JP2008501289 A JP 2008501289A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/005—Damping of vibrations; Means for reducing wind-induced forces
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
- G01S3/02—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves
- G01S3/023—Monitoring or calibrating
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
- G01S3/02—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves
- G01S3/04—Details
- G01S3/043—Receivers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
- G01S3/02—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves
- G01S3/14—Systems for determining direction or deviation from predetermined direction
- G01S3/46—Systems for determining direction or deviation from predetermined direction using antennas spaced apart and measuring phase or time difference between signals therefrom, i.e. path-difference systems
- G01S3/48—Systems for determining direction or deviation from predetermined direction using antennas spaced apart and measuring phase or time difference between signals therefrom, i.e. path-difference systems the waves arriving at the antennas being continuous or intermittent and the phase difference of signals derived therefrom being measured
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
- G01S5/0009—Transmission of position information to remote stations
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
- G01S5/02—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
- G01S5/04—Position of source determined by a plurality of spaced direction-finders
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/003—Transmission of data between radar, sonar or lidar systems and remote stations
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/02—Arrangements for de-icing; Arrangements for drying-out ; Arrangements for cooling; Arrangements for preventing corrosion
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/27—Adaptation for use in or on movable bodies
- H01Q1/28—Adaptation for use in or on aircraft, missiles, satellites, or balloons
- H01Q1/288—Satellite antennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/14—Reflecting surfaces; Equivalent structures
- H01Q15/147—Reflecting surfaces; Equivalent structures provided with means for controlling or monitoring the shape of the reflecting surface
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/0006—Particular feeding systems
- H01Q21/0037—Particular feeding systems linear waveguide fed arrays
- H01Q21/0043—Slotted waveguides
- H01Q21/005—Slotted waveguides arrays
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/0087—Apparatus or processes specially adapted for manufacturing antenna arrays
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
- H01Q9/045—Substantially flat resonant element parallel to ground plane, e.g. patch antenna with particular feeding means
- H01Q9/0457—Substantially flat resonant element parallel to ground plane, e.g. patch antenna with particular feeding means electromagnetically coupled to the feed line
-
- 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
- H04B1/26—Circuits for superheterodyne receivers
- H04B1/28—Circuits for superheterodyne receivers the receiver comprising at least one semiconductor device having three or more electrodes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/021—Auxiliary means for detecting or identifying radar signals or the like, e.g. radar jamming signals
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Remote Sensing (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Computer Networks & Wireless Communication (AREA)
- Astronomy & Astrophysics (AREA)
- Electromagnetism (AREA)
- Manufacturing & Machinery (AREA)
- Aviation & Aerospace Engineering (AREA)
- Signal Processing (AREA)
- Analogue/Digital Conversion (AREA)
- Radar Systems Or Details Thereof (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Waveguide Aerials (AREA)
- Peptides Or Proteins (AREA)
- Oscillators With Electromechanical Resonators (AREA)
- Details Of Aerials (AREA)
- Superheterodyne Receivers (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Control And Other Processes For Unpacking Of Materials (AREA)
- Prostheses (AREA)
- Surgical Instruments (AREA)
Abstract
Description
fr2=(fi−mf2),m={n n+1}
ここで、fiは入力信号の周波数であり、f1はA/D変換器1のサンプリング率であり、f2はA/D変換器2のサンプリング率であり、fr1はA/D変換器1により登録された入力信号の見かけ上の周波数であり、fr2はA/D変換器2により登録された入力信号の見かけ上の周波数である。
Claims (8)
- 高周波アナログ信号をデジタル化する方法であって、
前記アナログ信号を第1のサンプリング周波数(f1)で第1のデジタル信号に変換する工程と、
前記アナログ信号を前記第1のサンプリング周波数とは異なり、互いが非調和の関係にある第2のサンプリング周波数(f2)で第2のデジタル信号に変換する工程と、
前記第1のデジタル信号と前記第2のデジタル信号の相関関係を求める工程と、
前記第1のデジタル信号と前記第2のデジタル信号の周波数比を識別する工程と、
前記周波数比から第1の移行(transponation)比(n)を決定する工程と、
前記第1の移行比(n)で前記第1のデジタル信号をより高い周波数へと移行させる工程とを有することを特徴とする方法。 - 前記周波数比から第2の移行(transponation)比(m)を決定する工程と、
前記第2の移行比(m)で前記第2のデジタル信号をより高い周波数へと移行させる工程と、
前記移行された第1の信号を前記移行された第2の信号に加算する工程とをさらに有することを特徴とする請求項1に記載の方法。 - 前記第1と第2のサンプリング周波数(f1,f2)の倍数に等しい周波数f3の逆数である1/f3の積分時間にわたり0.9をこえる相関値をもつ信号を保持する工程と、
より低い相関比をもつ信号をミュートする工程とをさらに有することを特徴とする請求項1に記載の方法。 - 前記変換前に、前記第1と第2のサンプリング周波数(f1,f2)の倍数に等しい遮断周波数(f3)をもつアンチ−アライアシングフィルタで前記アナログ信号をフィルタする工程をさらに有することを特徴とする請求項1に記載の方法。
- アナログ信号をデジタル化するデジタイザであって、
前記アナログ信号を、前記アナログ信号の周波数(fi)より低い第1のサンプリング周波数(f1)で第1のデジタル信号に変換する第1のA/D変換器(32)と、
前記アナログ信号を、前記アナログ信号の周波数(fi)より低く、前記第1のサンプリング周波数とは異なり、互いが非調和の関係にある第2のサンプリング周波数(f2)で第2のデジタル信号に変換する第2のA/D変換器(33)と、
前記第1のデジタル信号と前記第2のデジタル信号とを結合して、少なくとも前記第1と第2のサンプリング周波数の倍数である第3のサンプリング周波数(f3)で第3のデジタル信号を生成する手段とを有することを特徴とするデジタイザ。 - 前記第1のデジタル信号と前記第2のデジタル信号の相関関係を求める手段をさらに有し、
該手段は、前記第1と第2のサンプリング周波数(f1,f2)の倍数に等しい周波数f3の逆数である1/f3の積分時間にわたり0.9より低い相関係数をもつ信号をミュートすることを特徴とする請求項5に記載のデジタイザ。 - 前記第1のデジタル信号と前記第2のデジタル信号の対応信号ペアを識別する手段と、
前記信号ペアの周波数に基づいて第1の変換係数(n)を決定する手段と、
前記第1の変換係数(n)で前記第1のデジタル信号の周波数を前記第3のデジタル信号へと移行させる手段とをさらに有することを特徴とする請求項6に記載のデジタイザ。 - 前記第1のデジタル信号と前記第2のデジタル信号の対応信号ペアを識別する手段と、
前記信号ペアの周波数に基づいて第1の変換係数(n)を決定する手段と、
前記第1の変換係数(n)で前記第1のデジタル信号の周波数を第4のデジタル信号へと移行させる手段と、
前記信号ペアの周波数に基づいて第2の変換係数(m)を決定する手段と、
前記第2の変換係数(m)で前記第1のデジタル信号の周波数を第5のデジタル信号へと移行させる手段と、
前記第4のデジタル信号を前記第5のデジタル信号に加算し、前記第3のデジタル信号を取得する手段とをさらに有することを特徴とする請求項6に記載のデジタイザ。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NO20042234 | 2004-05-28 | ||
PCT/NO2004/000409 WO2005117278A1 (en) | 2004-05-28 | 2004-12-30 | A digitizer arrangement |
Publications (2)
Publication Number | Publication Date |
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JP2008501289A true JP2008501289A (ja) | 2008-01-17 |
JP4523643B2 JP4523643B2 (ja) | 2010-08-11 |
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Application Number | Title | Priority Date | Filing Date |
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JP2007514959A Expired - Fee Related JP4523643B2 (ja) | 2004-05-28 | 2004-12-30 | デジタイザ構成 |
Country Status (9)
Country | Link |
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US (4) | US20070222672A1 (ja) |
EP (1) | EP1749345B1 (ja) |
JP (1) | JP4523643B2 (ja) |
CN (1) | CN1957535A (ja) |
AT (1) | ATE389974T1 (ja) |
AU (1) | AU2004326314B8 (ja) |
DE (1) | DE602004012620T2 (ja) |
WO (7) | WO2005117202A1 (ja) |
ZA (1) | ZA200608087B (ja) |
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JP2015079005A (ja) * | 2007-08-31 | 2015-04-23 | レイマリン・ユー・ケイ・リミテッドRaymarine Uk Limited | デジタルレーダーまたはソナー装置 |
JP2019502925A (ja) * | 2016-01-22 | 2019-01-31 | メズメリズ インク. | 信号検出の装置、方法、およびアプリケーション |
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- 2004-12-30 US US11/568,955 patent/US20070222672A1/en not_active Abandoned
- 2004-12-30 US US11/568,946 patent/US7411537B2/en active Active
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- 2004-12-30 DE DE602004012620T patent/DE602004012620T2/de active Active
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- 2004-12-30 JP JP2007514959A patent/JP4523643B2/ja not_active Expired - Fee Related
- 2004-12-30 ZA ZA200608087A patent/ZA200608087B/en unknown
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- 2004-12-30 WO PCT/NO2004/000410 patent/WO2005116680A1/en active Application Filing
- 2004-12-30 CN CNA2004800431736A patent/CN1957535A/zh active Pending
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JP2015079005A (ja) * | 2007-08-31 | 2015-04-23 | レイマリン・ユー・ケイ・リミテッドRaymarine Uk Limited | デジタルレーダーまたはソナー装置 |
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WO2005116679A1 (en) | 2005-12-08 |
EP1749345B1 (en) | 2008-03-19 |
WO2005116680A1 (en) | 2005-12-08 |
US20070241949A1 (en) | 2007-10-18 |
AU2004326314A1 (en) | 2006-12-14 |
US7411537B2 (en) | 2008-08-12 |
JP4523643B2 (ja) | 2010-08-11 |
WO2005116681A1 (en) | 2005-12-08 |
AU2004326314B2 (en) | 2009-01-22 |
WO2005117209A1 (en) | 2005-12-08 |
WO2005117278A1 (en) | 2005-12-08 |
CN1957535A (zh) | 2007-05-02 |
DE602004012620T2 (de) | 2009-04-23 |
US20070200760A1 (en) | 2007-08-30 |
EP1749345A1 (en) | 2007-02-07 |
US7750849B2 (en) | 2010-07-06 |
ATE389974T1 (de) | 2008-04-15 |
AU2004326314A8 (en) | 2008-08-14 |
WO2005116682A1 (en) | 2005-12-08 |
DE602004012620D1 (de) | 2008-04-30 |
WO2005117202A1 (en) | 2005-12-08 |
US20070222672A1 (en) | 2007-09-27 |
ZA200608087B (en) | 2008-03-26 |
US20080111759A1 (en) | 2008-05-15 |
AU2004326314B8 (en) | 2009-11-19 |
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