CA2092106A1 - Three-Dimensional Maximum a Posteriori (Map) Tracking - Google Patents

Three-Dimensional Maximum a Posteriori (Map) Tracking

Info

Publication number
CA2092106A1
CA2092106A1 CA2092106A CA2092106A CA2092106A1 CA 2092106 A1 CA2092106 A1 CA 2092106A1 CA 2092106 A CA2092106 A CA 2092106A CA 2092106 A CA2092106 A CA 2092106A CA 2092106 A1 CA2092106 A1 CA 2092106A1
Authority
CA
Canada
Prior art keywords
tracking
beam direction
frequency
data
target tracks
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
Application number
CA2092106A
Other languages
French (fr)
Other versions
CA2092106C (en
Inventor
Allen K. Lo
Mark D. Skinas
William J. Bangs
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Raytheon Co
Original Assignee
Allen K. Lo
Mark D. Skinas
William J. Bangs
Hughes Aircraft Company
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Allen K. Lo, Mark D. Skinas, William J. Bangs, Hughes Aircraft Company filed Critical Allen K. Lo
Publication of CA2092106A1 publication Critical patent/CA2092106A1/en
Application granted granted Critical
Publication of CA2092106C publication Critical patent/CA2092106C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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
    • 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
    • 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
    • G01S3/80—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 ultrasonic, sonic or infrasonic waves
    • 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
    • G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
    • G01S7/523—Details of pulse systems
    • G01S7/526—Receivers
    • G01S7/527—Extracting wanted echo signals
    • G01S7/5273—Extracting wanted echo signals using digital techniques

Abstract

An automatic detection apparatus (20) and method (20a) applies the Short and Toomey algorithmic processing procedure to a frequency and beam direction windowed and time segmented set of FFT magnitude detected data, comprising time, frequency and beam direction data, to determine the presence or absence of narrowband lines indicative of target tracks. This is achieved by storing the time, frequency and beam direction data, and then processing (32, 33) this data using a predetermined three-dimensional maximum a posteriori procedure whereby individual target tracks associ-ated with each beam direction are concurrently processed, and whereby transitions are made between adjacent beam directions in order to process target tracks having a maxi-mum signal to noise ratio to provide for detection of a target (11). An output target track is generated by combining the high signal to noise ratio portions of the processed individual target tracks into a single output target track. The present invention extends the tracking capabilities that are obtained using the Short and Toomey processing pro-cedure from two dimensions to three dimensions, and this added dimension provides spatial tracking in addition to spectral tracking. The spatial tracking is performed con-currently with the spectral tracking in an array processor.
CA002092106A 1992-03-23 1993-03-22 Three-dimensional maximum a posteriori (map) tracking Expired - Fee Related CA2092106C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/855,283 US5425136A (en) 1992-03-23 1992-03-23 Three-dimensional maximum a posteriori (map) tracking
US855,283 1992-03-23

Publications (2)

Publication Number Publication Date
CA2092106A1 true CA2092106A1 (en) 1993-12-19
CA2092106C CA2092106C (en) 1996-08-13

Family

ID=25320844

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002092106A Expired - Fee Related CA2092106C (en) 1992-03-23 1993-03-22 Three-dimensional maximum a posteriori (map) tracking

Country Status (9)

Country Link
US (1) US5425136A (en)
JP (1) JP2642297B2 (en)
AU (1) AU648712B2 (en)
CA (1) CA2092106C (en)
FR (1) FR2689270B1 (en)
GB (1) GB2265462B (en)
HK (1) HK37796A (en)
IL (1) IL104923A (en)
TW (1) TW215122B (en)

Families Citing this family (18)

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US5765166A (en) * 1996-04-23 1998-06-09 Raytheon Company Use of symmetric multiprocessors for multiple hypothesis tracking
US6236365B1 (en) 1996-09-09 2001-05-22 Tracbeam, Llc Location of a mobile station using a plurality of commercial wireless infrastructures
US7764231B1 (en) 1996-09-09 2010-07-27 Tracbeam Llc Wireless location using multiple mobile station location techniques
US9134398B2 (en) 1996-09-09 2015-09-15 Tracbeam Llc Wireless location using network centric location estimators
DE19925580B4 (en) * 1999-06-04 2010-09-09 Eads Deutschland Gmbh Level and bearing angle-based detection and segmentation of programs in the HF range
DE19925923A1 (en) * 1999-06-08 2000-12-28 Daimler Chrysler Ag Allocating directional results involves segmenting signal in time-frequency domain after successful evaluation of azimuth angles of individual sampled values of received signal
US10684350B2 (en) 2000-06-02 2020-06-16 Tracbeam Llc Services and applications for a communications network
US10641861B2 (en) 2000-06-02 2020-05-05 Dennis J. Dupray Services and applications for a communications network
US9875492B2 (en) 2001-05-22 2018-01-23 Dennis J. Dupray Real estate transaction system
US6937746B2 (en) * 2001-05-31 2005-08-30 Northrop Grumman Corporation System and method for automatic recognition of formations in moving target indication data
DE10129726C2 (en) * 2001-06-20 2003-08-28 Stn Atlas Elektronik Gmbh Method for determining target data
US6816109B1 (en) 2003-08-04 2004-11-09 Northrop Grumman Corporation Method for automatic association of moving target indications from entities traveling along known route
US20090312036A1 (en) 2008-06-16 2009-12-17 Skyhook Wireless, Inc. Methods and systems for improving the accuracy of expected error estimation in location determinations using a hybrid cellular and wlan positioning system
US9538493B2 (en) 2010-08-23 2017-01-03 Finetrak, Llc Locating a mobile station and applications therefor
US9055289B2 (en) * 2011-11-23 2015-06-09 Korea Institute Of Science And Technology 3D display system
CN104833958B (en) * 2015-04-03 2017-05-17 西北大学 Mobile sensor array AOA detection sum-difference algorithm
CN106707271B (en) * 2015-11-16 2019-04-16 南京理工大学 A kind of adaptive angleonly tracking method based on digital phase-locked loop
CN108614268B (en) * 2018-04-26 2021-12-07 中国人民解放军91550部队 Acoustic tracking method for low-altitude high-speed flying target

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4333170A (en) * 1977-11-21 1982-06-01 Northrop Corporation Acoustical detection and tracking system
US4182173A (en) * 1978-08-23 1980-01-08 General Electric Company Duplex ultrasonic imaging system with repetitive excitation of common transducer in doppler modality
US4559602A (en) * 1983-01-27 1985-12-17 Bates Jr John K Signal processing and synthesizing method and apparatus
NL8900985A (en) * 1989-04-20 1990-11-16 Hollandse Signaalapparaten Bv ACOUSTIC DETECTION DEVICE.
JP3086693B2 (en) * 1989-07-06 2000-09-11 株式会社東芝 Ultrasound diagnostic equipment
US5016641A (en) * 1989-11-13 1991-05-21 Advanced Technology Laboratories, Inc. Spectral interpolation of ultrasound Doppler signal
US5262785A (en) * 1992-04-30 1993-11-16 General Electric Co. Small target doppler detection system

Also Published As

Publication number Publication date
GB2265462B (en) 1995-08-30
GB9305035D0 (en) 1993-04-28
GB2265462A (en) 1993-09-29
IL104923A (en) 1996-01-31
AU648712B2 (en) 1994-04-28
HK37796A (en) 1996-03-15
CA2092106C (en) 1996-08-13
AU3533293A (en) 1993-09-30
JPH06148324A (en) 1994-05-27
US5425136A (en) 1995-06-13
FR2689270A1 (en) 1993-10-01
TW215122B (en) 1993-10-21
JP2642297B2 (en) 1997-08-20
FR2689270B1 (en) 1995-04-28

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