JP5309569B2 - 方向検出システム - Google Patents
方向検出システム Download PDFInfo
- Publication number
- JP5309569B2 JP5309569B2 JP2008004268A JP2008004268A JP5309569B2 JP 5309569 B2 JP5309569 B2 JP 5309569B2 JP 2008004268 A JP2008004268 A JP 2008004268A JP 2008004268 A JP2008004268 A JP 2008004268A JP 5309569 B2 JP5309569 B2 JP 5309569B2
- Authority
- JP
- Japan
- Prior art keywords
- signal
- antenna
- reception
- direction detection
- digital
- 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 title claims description 55
- 230000005540 biological transmission Effects 0.000 claims description 38
- 230000010365 information processing Effects 0.000 claims description 20
- 230000000630 rising effect Effects 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 claims description 11
- 230000003111 delayed effect Effects 0.000 claims description 9
- 238000012545 processing Methods 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 230000008859 change Effects 0.000 claims description 3
- 230000010355 oscillation Effects 0.000 claims description 3
- 238000003786 synthesis reaction Methods 0.000 claims description 3
- 238000004891 communication Methods 0.000 description 13
- 238000010586 diagram Methods 0.000 description 9
- 238000004364 calculation method Methods 0.000 description 7
- 230000004044 response Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Radar Systems Or Details Thereof (AREA)
Description
単一のキャリアを発生する送信機と、
それぞれ受信アンテナを備えた複数の受信機と、
各受信機の受信信号間の位相差を比較する位相比較部と、
位相差の比較結果を基に方向検出のための演算処理を行なう情報処理部と、
を具備することを特徴とする方向検出システムである。
(2)送受信アンテナが図6(b)に示した位置関係のときには、他方のデジタル受信信号nの立ち下がりと論理和信号pの立ち上がりのタイミングが一致する。
(2)送受信アンテナが図6(b)に示した位置関係のときには、一方のデジタル受信信号mの立ち下がりと論理和信号pの立ち下がりのタイミングが一致する。
102…アンプ
103…送信アンテナ
201…発振器
202、203…受信アンテナ
204、205…ミキサ
206、207…フィルタ(LPF)
208、209…AD変換器
210…位相比較器
211…情報処理部
801…送信アンテナ
802〜804…受信アンテナ
Claims (5)
- 単一のキャリアを発生する送信機と、
それぞれ受信アンテナを備え、受信信号をそれぞれミキサで中間周波数帯に一旦ダウンコンバートし、変換された中間周波数をさらにデジタル信号に変換する、複数の受信機と、
比較対象となる2つのデジタル受信信号の排他的論理和をとるEXORで構成され、前記デジタル信号に変換された各受信機の受信信号間の位相差を比較する位相比較部と、
比較対象となる2つのデジタル受信信号のうち一方との論理積をとってダウンコンバートした後の受信信号の周期T if を求め、前記EXORが出力する位相差τと、ダウンコンバートした後の受信信号の周期T if を基に求められる各受信アンテナでの受信時の位相差ξから、受信アンテナを結ぶ直線と送信アンテナと受信アンテナを結ぶ直線のなすアンテナ角θを計算する
位相差の比較結果を基に方向検出のための演算処理を行なう情報処理部と、
を具備し、
前記情報処理部は、前記EXORの出力と比較対象となる2つのデジタル受信信号のうち一方との論理積と、比較対象となる2つのデジタル受信信号のうち他方とが同時に変化するタイミングにおける各信号の立ち上がり並びに立ち下がりの状況に基づいて、比較対象となる2つのデジタル受信信号のうちいずれの位相が遅れているかを特定して、送信アンテナの方角を求める、
ことを特徴とする方向検出システム。 - 前記送信機は、ミリ波帯の周波数を発生する、
ことを特徴とする請求項1に記載の方向検出システム。 - 各受信機の受信アンテナは、無指向、又は同じ指向性で構成される、
ことを特徴とする請求項1に記載の方向検出システム。 - 送信信号の波長λに対し、各受信アンテナはλ/2以下の距離で配置される、
ことを特徴とする請求項1に記載の方向検出システム。 - 各受信機のミキサは、単一の発振器からの発振周波数を用いて周波数合成を行なう、
ことを特徴とする請求項1に記載の方向検出システム。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008004268A JP5309569B2 (ja) | 2008-01-11 | 2008-01-11 | 方向検出システム |
US12/335,635 US8354961B2 (en) | 2008-01-11 | 2008-12-16 | Direction finding system and direction finding apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008004268A JP5309569B2 (ja) | 2008-01-11 | 2008-01-11 | 方向検出システム |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2009168498A JP2009168498A (ja) | 2009-07-30 |
JP5309569B2 true JP5309569B2 (ja) | 2013-10-09 |
Family
ID=40850165
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2008004268A Expired - Fee Related JP5309569B2 (ja) | 2008-01-11 | 2008-01-11 | 方向検出システム |
Country Status (2)
Country | Link |
---|---|
US (1) | US8354961B2 (ja) |
JP (1) | JP5309569B2 (ja) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100979287B1 (ko) * | 2009-12-07 | 2010-08-31 | 엘아이지넥스원 주식회사 | 방위 탐지 시스템 및 그 방법 |
GB2478960B (en) * | 2010-03-25 | 2012-08-22 | Guidance Ip Ltd | An apparatus for measuring the relative direction of a radio signal |
GB2478954B (en) * | 2010-03-25 | 2012-02-08 | Guidance Ip Ltd | Active target |
GB2478961B (en) * | 2010-03-25 | 2014-06-18 | Guidance Ip Ltd | Active target with height diversity |
JP2012032871A (ja) * | 2010-07-28 | 2012-02-16 | Chugoku Electric Power Co Inc:The | 巡視支援方法、及び巡視支援システム |
US20140225804A1 (en) * | 2011-03-03 | 2014-08-14 | Checkpoint Systems, Inc. | Multiplexed antenna localizing |
DE102013217869A1 (de) * | 2013-09-06 | 2015-03-12 | Continental Teves Ag & Co. Ohg | Verfahren und Kommunikationsvorrichtung zur Validierung eines Dateninhalts eines drahtlos empfangenen Kommunikationssignals sowie Verwendung der Kommunikationsvorrichtung |
US9482735B2 (en) | 2013-09-11 | 2016-11-01 | King Fahd University Of Petroleum And Minerals | Microwave radio direction finding system |
CN106062580B (zh) * | 2013-12-27 | 2019-11-05 | 麻省理工学院 | 利用非同步发射和多径传输的定位 |
US20150349432A1 (en) * | 2014-06-02 | 2015-12-03 | Physical Devices, Llc | Wavelength compressed antennas |
US10177451B1 (en) | 2014-08-26 | 2019-01-08 | Ball Aerospace & Technologies Corp. | Wideband adaptive beamforming methods and systems |
US9751058B2 (en) * | 2015-09-04 | 2017-09-05 | Patz Corporation | Agricultural feed mixer transmission torque sensor assembly |
CN111257823B (zh) * | 2019-12-26 | 2022-03-22 | 浙江大学 | 一种基于耦合阵列的测向方法 |
CN111273224B (zh) * | 2019-12-26 | 2022-03-18 | 浙江大学 | 一种基于可视化阵列天线的测量方法 |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4000466A (en) * | 1975-05-22 | 1976-12-28 | Iowa State University Research Foundation, Inc. | Apparatus for time-interval measurement |
GB1540418A (en) * | 1976-03-15 | 1979-02-14 | Mullard Ltd | Resolving angular ambiguity |
US4443801A (en) * | 1981-06-15 | 1984-04-17 | The United States Of America As Represented By The Secretary Of The Army | Direction finding and frequency identification method and apparatus |
GB2140238A (en) * | 1983-05-11 | 1984-11-21 | Racal Communications Equip | Direction finding |
GB8612753D0 (en) * | 1986-05-27 | 1986-09-17 | Tong D A | Direction finding equipment |
US5227803A (en) * | 1992-07-22 | 1993-07-13 | Hughes Aircraft Company | Transponder location and tracking system and method |
JP2908170B2 (ja) | 1993-03-23 | 1999-06-21 | 三菱電機株式会社 | 方位測定装置 |
US5477230A (en) * | 1994-06-30 | 1995-12-19 | The United States Of America As Represented By The Secretary Of The Air Force | AOA application of digital channelized IFM receiver |
US5541608A (en) * | 1995-03-29 | 1996-07-30 | Itt Corporation | Hybrid amplitude/phase comparison direction finding system |
US5608411A (en) * | 1995-06-09 | 1997-03-04 | Litton Systems, Inc. | Apparatus for measuring a spatial angle to an emitter using squinted antennas |
DE19744692A1 (de) * | 1997-10-10 | 1999-04-15 | Daimler Benz Aerospace Ag | Peilverfahren zur Bestimmung der Einfallsrichtung eines hochfrequenten elektromagnetischen Signals |
JP2001022987A (ja) * | 1999-07-07 | 2001-01-26 | Mitsubishi Heavy Ind Ltd | 道路料金収受装置及び自動料金収受システム |
US6313794B1 (en) * | 2000-01-19 | 2001-11-06 | Litton Systems, Inc. | Method of detection and determining an angular location of frequency agile emitters |
WO2001057546A1 (en) * | 2000-02-01 | 2001-08-09 | Honeywell International Inc. | Cable phase calibration in a tcas |
US6366241B2 (en) * | 2000-06-26 | 2002-04-02 | Trueposition, Inc. | Enhanced determination of position-dependent signal characteristics of a wireless transmitter |
JP2003174662A (ja) * | 2001-12-06 | 2003-06-20 | Mitsubishi Electric Corp | 移動通信端末の位置標定方法および基地局 |
JP4093792B2 (ja) * | 2002-04-18 | 2008-06-04 | 富士通株式会社 | 移動無線局の位置を決定する測位システム、プログラムおよび位置決定方法 |
US6759981B1 (en) * | 2003-01-15 | 2004-07-06 | Raytheon Company | Enhanced emitter location using adaptive combination of time shared interferometer elements |
US6911934B2 (en) | 2003-09-16 | 2005-06-28 | M/A-Com, Inc. | Apparatus, method and articles of manufacture for sequential lobing high resolution radar |
JP2007047047A (ja) | 2005-08-10 | 2007-02-22 | Sony Corp | 無線通信システムと無線通信装置および測距方法 |
US8014791B2 (en) * | 2008-06-30 | 2011-09-06 | Intelligent Sciences, Ltd. | Method and system for determining position of a wireless electronic device within a volume |
-
2008
- 2008-01-11 JP JP2008004268A patent/JP5309569B2/ja not_active Expired - Fee Related
- 2008-12-16 US US12/335,635 patent/US8354961B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JP2009168498A (ja) | 2009-07-30 |
US8354961B2 (en) | 2013-01-15 |
US20090179799A1 (en) | 2009-07-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5309569B2 (ja) | 方向検出システム | |
TWI514193B (zh) | 動作感測裝置 | |
JP5407856B2 (ja) | マルチバンドトランシーバおよび該トランシーバを用いた測位システム | |
US9645234B2 (en) | RFID device, methods and applications | |
US20120062427A1 (en) | Positioning Method and Wireless Communication System Using the Same | |
JP5504166B2 (ja) | 無線到来方向推定装置及び無線到来方向推定方法 | |
US7672363B2 (en) | Method of and system for determining the delay of digital signals | |
CN106019285B (zh) | 一种微型无人机毫米波雷达 | |
US7933308B2 (en) | Signal transmission and reception device | |
TW201305589A (zh) | 無線區域網路定位方法及設備 | |
CN105874347B (zh) | Css定位系统 | |
KR101167906B1 (ko) | 차량용 레이더시스템 및 차량용 레이더 시스템의 표적탐지 방법 | |
JPWO2020166442A1 (ja) | レーダ装置、観測対象検出方法及び車載装置 | |
Rodrigues et al. | A novel microwave architecture for passive sensing applications | |
KR101568239B1 (ko) | 밀리미터파 탐색기용 신호 처리 장치 및 방법 | |
KR101998360B1 (ko) | 센서 모듈 | |
JP5029045B2 (ja) | レーダシステム及びそれに用いる送信機並びに受信機 | |
EP2815249B1 (en) | Method and apparatus for estimating a distance and a location through near-field multi-frequency radio transmissions | |
JP5677152B2 (ja) | ホログラフィックレーダ装置 | |
JP2011239401A (ja) | 位相ノイズが除去される送受信機 | |
JP2009210372A (ja) | 距離測定装置 | |
KR100920768B1 (ko) | 초광대역 레이더 | |
JP2011085391A (ja) | 位置測定方法及び位置測定装置 | |
JP2015061105A (ja) | 無線送信機、無線受信機、無線通信システム及び無線通信方法 | |
JP5235728B2 (ja) | 誘導装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20101227 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20130214 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20130312 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20130328 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20130604 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20130617 |
|
LAPS | Cancellation because of no payment of annual fees |