1,285 research outputs found
Conductivity Imaging in Plates Using Current Injection Tomography
The task of reconstructing an unknown distribution of electrical conductivity is widely recognized as a central theoretical problem in eddy-current nondestructive evaluation [1]. Rather than using an eddy-current method, we address this problem using DC injection of current into conductive materials. Experimental methods of the magnetic imaging of injected currents using high-resolution SQUID magnetometers have been described elsewhere [2]. In this paper we describe a tomographic method for using magnetically-imaged, injected currents to reconstruct distributions of electrical conductivity. Much of what we describe should also be applicable to data obtained using uniform colinear eddy currents induced by means of planar sheet inducers [4, 5]
A near-far resistant sliding window decorrelating algorithm for multi-user detectors in DS-CDMA systems
A sliding window decorrelating receiver for multiuser DS-CDMA mobile radio networks
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A near-far resistant algorithm to combat effects of fast fading in multi-user DS-CDMA systems
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