Results 61 to 70 of about 49,521 (293)

AAA gunnermodel based on observer theory [PDF]

open access: yes, 1978
The Luenberger observer theory is used to develop a predictive model of a gunner's tracking response in antiaircraft artillery systems. This model is composed of an observer, a feedback controller and a remnant element.
Day, C. N.   +3 more
core   +1 more source

Tracking the Tracker from its Passive Sonar ML-PDA Estimates [PDF]

open access: yes, 2013
Target motion analysis with wideband passive sonar has received much attention. Maximum likelihood probabilistic data-association (ML-PDA) represents an asymptotically efficient estimator for deterministic target motion, and is especially well-suited for
Bar-Shalom, Y.   +2 more
core   +1 more source

Degradable Magnetic Composites from Recycled NdFeB Magnets for Soft Actuation and Sensing

open access: yesAdvanced Robotics Research, EarlyView.
This work presents a degradable soft magnetic composite made from recycled NdFeB particles embedded in a gelatin‐based organogel. The material is processed into magnetic sensors and soft robotic components, which can later be dissolved in a green solvent to recover NdFeB magnetic particles.
Muhammad Bilal Khan   +14 more
wiley   +1 more source

Tumbling Magnetic Microrobots for Targeted In Vivo Drug Delivery in the GI Tract

open access: yesAdvanced Robotics Research, EarlyView.
We introduce a microrobot design and integrated system for on‐demand targeted drug release in the gastrointestinal tract. The microrobot has an embedded magnet for actuation with external magnetic fields and is visualized in real time using ultrasound. It has two drug release ports sealed with a thermally sensitive wax. Local heating of the wax using a
Aaron C. Davis   +7 more
wiley   +1 more source

Multimissile Cooperative Guidance Law for Maneuvering Target Interception Based on the ICOA

open access: yesInternational Journal of Aerospace Engineering
This paper focuses on multimissile cooperative guidance for intercepting multiple maneuvering targets and proposes a guidance law based on an iterative time-to-go estimation method.
Huayu Gao   +5 more
doaj   +1 more source

A Filtering Algorithm for Maneuvering Target Tracking Based on Smoothing Spline Fitting

open access: yesAbstract and Applied Analysis, 2014
Maneuvering target tracking is a challenge. Target’s sudden speed or direction changing would make the common filtering tracker divergence. To improve the accuracy of maneuvering target tracking, we propose a tracking algorithm based on spline fitting ...
Yunfeng Liu   +3 more
doaj   +1 more source

Space Maneuvering Target Integration Detection and Parameter Estimation for a Spaceborne Radar System With Target Doppler Aliasing

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2020
Space maneuvering target detection and parameter estimation are the challenging problems in a spaceborne radar system. The complex motion of an observed target usually leads to the range migration (RM) and Doppler frequency migration, causing the ...
Muyang Zhan   +6 more
doaj   +1 more source

A comparison of results from two simulators used for studies of astronaut maneuvering units [PDF]

open access: yes
A comparison of the results from a fixed-base, six-degree-of -freedom simulator and a moving-base, three-degree-of-freedom simulator was made for a close-in, EVA-type maneuvering task in which visual cues of a target spacecraft were used for guidance ...
Cannaday, R. L., Stewart, E. C.
core   +1 more source

Qualitative Criterion for Interception in a Pursuit/Evasion Game

open access: yes, 2009
A qualitative account is given of a differential pursuit/evasion game. A criterion for the existence of an intercept solution is obtained using future cones that contain all attainable trajectories of target or interceptor originating from an initial ...
Isaacs R.   +4 more
core   +1 more source

A Multidirectional Textile Interface for Remote Control Using Dynamic Area‐Based Capacitance Modulation

open access: yesAdvanced Robotics Research, EarlyView.
Here, we present a textile, wearable capacitive interface enabling multidirectional remote control by dynamically modulating electrode overlap and spacing via a freely gliding upper electrode. A forearm‐mounted prototype drives robotic and media tasks with 12–15 ms latency, maintains < 0.8% drift after 500 cycles, and remains stably functional at 90 ...
Cagatay Gumus   +8 more
wiley   +1 more source

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