Generalized Theory of the Band-Pass Low-Pass Analogy
Pierre R. Aigrain, B. R. Teare, E.M. Wi · Proceedings of the IRE · 1949
A generalized theory of band-pass low-pass equivalents is developed using Laplace transform analysis, and it is shown that video equivalents exist not only for symmetrical systems, but also for dissymmetrical systems with low-level modulation. Several illustrations are given.