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Keuffel & Esser N4053-5 Polyphase Mannheim Simplex Slide Rule

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. This 20-inch mahogany one-sided slide ...
Nature

Symmetrical Components: as Applied to the Analysis of Unbalanced Electrical Circuits

IT was in 1918 that Prof. C. L. Forteseue published his now classic paper on “The Method of Symmetrical Coordinates Applied to the Solution of Polyphase Networks”, A considerable literature dealing ...
IEEE

Design of Polyphase Sequences With Low Integrated Sidelobe Level for Radars With Spectral Distortion via Majorization-Minimization Framework

Abstract: Polyphase sequences with low aperiodic autocorrelation levels, assessed in terms of the integrated sidelobe level (ISL), can be applied in many engineering fields, such as radars, sonars, ...
IEEE

Polyphase-coded FM (PCFM) radar waveforms, part II: optimization

Abstract: This paper addresses polyphase code optimization with respect to the nonlinear frequency modulation waveform generated by the continuous phase modulation implementation. A greedy search ...