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The control problem of time-optimal, rest-to-rest slewing of a flexible spacecraft through a large angle is considered. The flexible spacecraft is modeled as a linear, elastic, undamped, nongyroscopic system suitable for analysis of planar rotational maneuvers. Minimum-time open-loop planar maneuvers are studied. The control histories are found to be(More)
Software effort estimation is an important area in the field of software engineering. If the software development effort is over estimated it may lead to tight time schedules and thus quality and testing of software may be compromised. In contrast, if the software development effort is underestimated it may lead to over allocation of man power and resource.(More)
Particle in Cell (PIC) codes are widely used in the simulation of many plasma related systems (E.g.: Laser plasma interactions, high power microwave sources). A detailed simulation of these systems requires parallel computing facility with faster CPUs with efficient interconnects. We have setup a 33 node Xeon (Dual socket and Dual core) cluster with double(More)
INTRODUCTION The parallel imaging process leads to a drop in signal to noise ratio (SNR) that makes image interpretation difficult. Regularization based reconstruction methods use prior information about the underlying target to improve the quality of image. Standard regularization methods assume that the underlying image is globally smooth, but images have(More)
Markov Random Fields (MRF’s) are an effective way to impose spatial smoothness in computer vision. We describe an application of MRF’s to a non-traditional but important problem in medical imaging: the reconstruction of MR images from raw fourier data. This can be formulated as a linear inverse problem, where the goal is to find a spatially smooth(More)
SRS document is the first deliverable product/milestone in the software development process and acts as a basis for the formal contract between the user and the developer of the software of an information system. This document is written in natural language and reflects the problem (computation) complexity of the system. We felt that there was a need to(More)
The Formation Control Testbed (FCT) is a ground based multiple robot testbed for simulating the dynamic interaction of spacecraft formations in a representative 6-DOF environment. Linear and spherical air bearings are used to mimic the drag free space environment. Each robot is fully autonomous with a self contained supply of float gas, integrated battery(More)
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