Autonomous Maneuver Tracking for Self-Piloted Vehicles

Boyle, David P.; Chamitoff, Gregory

doi:10.2514/2.4426

Cited by 5 publications

(11 citation statements)

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“…13 shows the flight trajectory during maneuver. This maneuver is qualitatively the same as that of Boyle and Chamitof (1999) except that the specific numbers are different because the basic airframes used in each of the examples are different. The difference in the desired and the achieved trajectories is rarely discernible.…”

Section: Reconnaissance and Surveillance Maneuvermentioning

confidence: 91%

“…This particular maneuver is taken from Boyle and Chamitof (1999) where the quasi-trimmed flight condi- tion is used to find a set of maneuver commands, and then the robust tracking controller is designed to account for model uncertainty and disturbance rejection. The example maneuver sequence used in this present paper may be summarized as follows: (1) wingslevel accelerated ascent at 2 ft/s 2 ; (2) a 360 ascending left turn with a constant ascent rate of 5 ft/s and a turn rate of 2 /s; (3) a straight and level segment of 80 s duration; (4) a 360 descending right turn with a constant descent rate of 5 ft/s and a turn rate of 2 /s and (5) a wings-level accelerated descent at 2 ft/s 2 .…”

Section: Reconnaissance and Surveillance Maneuvermentioning

confidence: 99%

“…With the advancements in electronic technology and precise navigation systems, fully or partially automated unmanned aerial vehicles (UAV) are being used and developed for various missions. Such UAVs are often required to follow a pre-designated trajectory (Boyle & Chamitof, 1999;Kaminer, Pascoal, Hallberg, & Silvestre, 1998;Wu, Engelen, Babuska, Chu, & Mulder, 2003) or operate in a restricted environment for its take-off and landing (Marconi, Isidori, & Serrani, 2002). For this, the precise position control in the three-dimensional space is necessary.…”

Section: Introductionmentioning

confidence: 99%

“…In other previous works, the trimmed flight conditions along the reference trajectory are used as the command input to the tracking controllers (Kaminer et al, 1998;Boyle & Chamitof, 1999). For example, Boyle and Chamitof (1999) used the quasi-trimmed flight condition in order to convert the given guidance commands into the commands for the inner loop to follow.…”

Section: Introductionmentioning

confidence: 99%

“…For example, Boyle and Chamitof (1999) used the quasi-trimmed flight condition in order to convert the given guidance commands into the commands for the inner loop to follow. These commands are fed forward and augmented with the robust maneuver-tracking controller to account for any uncertainty in the system modeling and disturbance.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Control and simulation of arbitrary flight trajectory-tracking

Min

Stone

et al. 2005

Control Engineering Practice

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Section: Reconnaissance and Surveillance Maneuvermentioning

confidence: 91%

Section: Reconnaissance and Surveillance Maneuvermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Control and simulation of arbitrary flight trajectory-tracking

Min

Stone

et al. 2005

Control Engineering Practice

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Trajectory tracking for fixed-wing UAV using model predictive control and adaptive backstepping

2015

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This paper presents a two layer guidance and control system design for fixed-wing unmanned aerial vehicles (UAV). On the top level, the guidance system makes the airplane follows precomputed references using a novel iterative model predictive scheme, which can handle the nonlinear optimization problem by successive linearizations (starting the algorithm using a robust L1 navigation law which ensures the availability of the solution). The outputs of this algorithm are references in airspeed, flight path angle and bank angle, which are seek by the low level controller also presented in this paper. This controller uses an adaptive backstepping approach for the longitudinal dynamics, and a conventional integral-LQR controller for the lateral-directional dynamics. Simulations show good performances of the overall architecture.

show abstract

<title>Closely supervised control of a target-steered UAV</title>

Spenny¹,

Glassco²,

Green

1999

Telemanipulator and Telepresence Technologies VI

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Orientation of a camera onboard an uninhabited aerial vehicle (UAV) that is used for reconnaissance is performed manually by an operator using a two degree-of-freedom joystick that commands camera azimuth and elevation. The flight path of the UAV is accomplished autonomously by an autopilot that transforms camera onentation into guidance commands that cause the UAV to fly to a destination, loiter or track a target as instructed by the operator. This control mode permits single-person operation of the UAV mission. In a manual mode, the aircraft circles the target at a fixed standoff distance from the UAV that is determined by instantaneous camera orientation and if available, ranging information to the target. The operator must continually track the target in this mode. In a shared control mode, the target location in an earth-fixed frame is determined from the camera orientation at a single point in time, in conjunction with the concurrent UAV position, the latter assumed to be available from GPS or an onboard inertial guidance system. This leaves the operator free to pan for other targets or perform other tasks. He can update target location or switch between the manual and shared modes at any time. This method also provides the added benefit that if the feed from the remote operator is lost, the aircraft will continue on its current heading or loiter similar to current UAV operation. This teleoperation concept is being validated in Wright State University's CAVE automated virtual environment located at Wright Patterson Air Force Base.

show abstract

Autonomous Maneuver Tracking for Self-Piloted Vehicles

Cited by 5 publications

References 0 publications

Control and simulation of arbitrary flight trajectory-tracking

Control and simulation of arbitrary flight trajectory-tracking

Trajectory tracking for fixed-wing UAV using model predictive control and adaptive backstepping

<title>Closely supervised control of a target-steered UAV</title>

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