Navigation by Back Triangulation

Poirot, James L.; McWilliams, G. V.

doi:10.1109/taes.1976.308304

Cited by 19 publications

(7 citation statements)

References 1 publication

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“…The initial bearing is 0", and the target maintains a steady course of 0" with a constant speed of 20 knots. Own-ship also maintains a constant speed of 28.28 knots, but periodically executes 90" course changes as follows: 2,3,4] from 315" to 45" at t = (12.5+ 17k)min…”

Section: Simulation Resultsmentioning

confidence: 99%

Utilization of modified polar coordinates for bearings-only tracking

Aidala

Hammel

1983

IEEE Trans. Automat. Contr.

417

168

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From 1972 to 1974 he did research on nonlinear continuous-time estimation theor). at Harvard University. He is currently a Principal Engineer at Raytheon Company, Wayland. MA. on the staff of the Advanced System Enpeering Department. He has developed, analyzed, and tested numerous algorithms for both exoatmospheric and endoatmospheric radar applications, including Cobra Dane, PAVE PAWS, Cobra Judy, and Sentry, as well as air traffic control and shipboard fire control systems. These algorithms include Kalman filters, track initiation, object classification, satellite versus missile discrimination, and radar pulse scheduling. In addition, he has analqzed radar system performance considering the effects of multiple target interference, jamming, ducting, Aurora, tropospheric refraction, ionospheric perturbations, target wake, and rocket exhaust plume. His present areas of interest are nonlinear discrete-time estimation theory and the use of adaptive Kalman filters for pattern recognition. Mr. Daum is a member of Tau Beta Pi and Eta Kappa Nu. Robert J. Fikgerald was born in Hamilton, Ont., Canada. He received the B.A.Sc. degree from the

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Section: Simulation Resultsmentioning

confidence: 99%

Utilization of modified polar coordinates for bearings-only tracking

Aidala

Hammel

1983

IEEE Trans. Automat. Contr.

417

168

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“…The second form is resection, which occurs when an observer estimates its unknown location using angle measurements to two (or more) points at known locations. The resection form of triangulation describes the vehicle (e.g., robot, ship, aircraft, spacecraft) localization problem that commonly appears in navigation applications [9,36].…”

Section: Background and The Lexicon Of Triangulationmentioning

confidence: 99%

Absolute Triangulation Algorithms for Space Exploration

Henry¹,

Christian²

2022

Preprint

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Images are an important source of information for spacecraft navigation and for threedimensional reconstruction of observed space objects. Both of these applications take the form of a triangulation problem when the camera has a known attitude and the measurements extracted from the image are line of sight (LOS) directions. This work provides a comprehensive review of the history and theoretical foundations of triangulation. A variety of classical triangulation algorithms are reviewed, including a number of suboptimal linear methods (many LOS measurements) and the optimal method of Hartley and Sturm (only two LOS measurements). Two new optimal non-iterative triangulation algorithms are introduced that provide the same solution as Hartley and Sturm. The optimal two-measurement case can be solved as a quadratic equation in many common situations. The optimal many-measurement case may be solved without iteration as a linear system using the new Linear Optimal Sine Triangulation (LOST) method. The various triangulation algorithms are assessed with a few numerical examples, including planetary terrain relative navigation, angles-only optical navigation at Uranus, 3-D reconstruction of Notre-Dame de Paris, and angles-only relative navigation.

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“…Such algorithms determine the source of a transmission by using signal strength and/or direction (triangulation algorithms [17]), or the phase difference [?]. More than one reader will be needed but only one reader needs to broadcast the challenge.…”

Section: Protocolmentioning

confidence: 99%

“…The location of a transmitting device can be determined by analyzing its radio signals. For outdoor applications the signal strength and/or direction are used (with triangulation protocols (see e.g., [17]); for indoor applications one may have two antennas on each tag and analyze the phase difference of their signals (to deal with multi-path effects, see e.g., [9]). Localization privacy requires that an RFID tag will only respond to a challenge from an RFID reader if it can first ascertain that the challenge is authentic and fresh (current).…”

Section: Introductionmentioning

confidence: 99%

His Late Master’s Voice: Barking for Location Privacy

Burmester

2011

Security Protocols XIX

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Abstract. Bob died suddenly leaving his treasure to sister Alice. Eve will do anything to get it, so Alice hides the treasure together with Nipper, and promptly departs. Nipper is a low-cost RFID device that responds only to Alice's callsmaking it possible for Alice to locate the hidden treasure later (she is quite forgetful) when Eve is not around. We study the design of Nipper, the cryptographic mechanisms that support its functionality and the security of the application.

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Navigation by Back Triangulation

Cited by 19 publications

References 1 publication

Utilization of modified polar coordinates for bearings-only tracking

Utilization of modified polar coordinates for bearings-only tracking

Absolute Triangulation Algorithms for Space Exploration

His Late Master’s Voice: Barking for Location Privacy

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