Quadrature Signals: Complex, But Not Complicated
By Richard Lyons
Abstract:
Understanding complex numbers and quadrature signals is essential for understanding DSP at both a theoretical and a practical level. Yet this strange, "complex" subject (based on the admittedly "imaginary" construct of the "square root of negative one"!) is among the hardest for DSP beginners to grasp--and is confusing at times even for advanced DSPers.
But don't despair: help is on the way. In this tutorial, Rick Lyons, author of the best-selling book
Understanding Digital Signal Processing, clears the fog around this difficult subject by providing the clearest, most intuitive explanation yet of quadrature signals and their importantance in Digital Signal Processing.
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