Flexible-link manipulators have high demand in many industrial and space applications. This is simply because they have many advantages over the rigid manipulators such as light weight, fast response time and large payload capacity. Optimal trajectories for a two-link rigid-flexible manipulator based on trajectory tracking and obstacle avoidance criteria are designed using Generalized Pattern S...

Over the years airborne radars have proven their value as wide-area, nearly all-weather surveillance tools. Typically, airborne radars are large systems mounted in manned aircraft. Lincoln Laboratory, however, has built a very capable radar system that is compact and lightweight; the radar has been integrated into an unmanned air vehicle (UAV). The work is sponsored by the Army's Harry Diamond ...

In order to simulate realistic traffic scenarios, a radar target simulator must be able generate multiple targets with different directions of arrival. The presented concept is an arbitrary amount individual arrival for the under test. By measuring channel, novel approach enables simulators arrival, while minimizing required hardware. optimum setup derived radars uniform linear receive antenna ...

In present work the various aspects on mathematical modelling, stability and control strategies of flexible double link manipulator have been investigated. A mathematical model of flexible double link manipulator has been developed using lagrangian method. This mathematical model has been characterized using classical and modern control theories. Their time domain and frequency domain analysis ...

The rapid progression in digital hardware and signal processing capabilities stimulates the development of radar systems. The tendency is to move the digital interface toward the antenna, replacing, whenever possible, analog RF-hardware. Based on software codes, these digital systems are more flexible and easier to reconfigure than RF-hardware. This letter illustrates the general concept for di...

Accurate modeling of Space Surveillance sensors is necessary for a variety of applications. Accurate models can be used to perform trade studies on sensor designs, locations, and scheduling. In addition, they can be used to predict system-level performance of the Space Surveillance Network to a collision or satellite break-up event. A high fidelity physics-based radar simulator has been develop...

This effort advanced the art of applying Grenander's pattern theory to automatic target recognition (ATR) problems. We extended jump-diffusion ATR algorithms to accommodate unknown infrared camera calibration effects and include more stable diffusion procedures for pose refinement, and developed flexible shape models to accommodate clutter. We also developed performance bounds on estimation and...

This effort advanced the art of applying Grenander’s pattern theory to automatic target recognition (ATR) problems. We extended jump-diffusion ATR algorithms to accommodate unknown infrared camera calibration effects and include more stable diffusion procedures for pose refinement, and developed flexible shape models to accommodate clutter. We also developed performance bounds on estimation and...

A technique using augmented sliding mode control for robust, real-time control of flexible multiple link robots is presented. For the purpose of controller design, the n-link, n-joint robot is subdivided into n single joint, single link subsystems. A sliding surface for each subsystem is specified so as to be globally, asymptotically stable. Each sliding surface contains rigid-body angular velo...