Journal ArticleDOI
Application of Volterra series to intermodulation distortion analysis of transistor feedback amplifiers
TLDR
In this paper, the authors analyzed the intermodulation distortion of a solid-state feedback amplifier and showed that the feedback is fully effective in reducing the open-loop second-order distortion.Abstract:
This paper analyzes the intermodulation distortion of a solid-state feedback amplifier. Each transistor of the amplifier has been represented by a frequency-dependent model incorporating four nonlinearities. The Volterra series is used as the analysis tool. The primary motivation for this study is that intermodulation distortion is a critical problem in high-frequency long-haul solidstate systems. A computer program that calculates the amplifier intermodulation distortion has been developed. This program can be used to select the optimum bias point of each stage, optimum interstage and feedback networks, and optimum load and source impedances. Good correlation between calculated and measured results was obtained. The closed-form expressions derived show that the feedback is fully effective in reducing the open-loop second-order distortion and that the feedback may not significantly reduce the open-loop third-order distortion, if the "second-order interaction" phenomenon is dominant. The second-order interaction is explained in detail in this paper.read more
Citations
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Journal ArticleDOI
Distortion analysis of bipolar transistor circuits
TL;DR: Computer results for several transistor circuits using Western Electric highfrequency transistors are all in excellent agreement with the measured data over a wide range of bias conditions and frequencies, demonstrating the validity of the approach treated in the paper.
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Interference mitigation techniques in modern wireless communication systems
TL;DR: Η μελέτη και σχεδίαση των ση χρηστώn σε εφαρματικής που απαιτοos�́ν υψηλό ρυθμ
Journal ArticleDOI
An analysis of distortion in bipolar transistors using integral charge control model and Volterra series
S. Narayanan,H. C. Poon +1 more
TL;DR: A new analysis approach to understand and minimize nonlinear distortion in bipolar transistors is presented, employing a recently developed nonlinear device model, known as the integral charge control model, and a powerful analysis tool: the Volterra series representation.
Journal ArticleDOI
Spectral effects of time-depth nonlinearities in deep sea sediment records: A demodulation technique for realigning time and depth scales
TL;DR: In this article, a tuning technique is developed which assumes a direct link between climate (as measured in δ18O from planktonic foraminifer tests) and sedimentation rates.
Journal ArticleDOI
An investigation into the characteristics of non-linear frequency response functions. Part 1: Understanding the higher dimensional frequency spaces
TL;DR: In this paper, the characteristics of generalized frequency response functions (GFRFs) of non-linear systems in higher dimensional space are investigated using a combination of graphical and symbolic decomposition techniques.
References
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Continuous nonlinear systems
TL;DR: In this paper, a thesis submitted to M.I.T. Dept. of Electrical Engineering, July 24, 1959, is described, based on which the following paper is presented:
Journal ArticleDOI
Transistor distortion analysis using volterra series representation
TL;DR: In this article, the second and third harmonic distortion for a given set of input frequencies and transistor parameters is computed using the Volterra series representation, where the nonlinear nodal equations are solved by expressing nodal voltages in terms of the VOLTERRA series expansion of the input voltage.
Journal ArticleDOI
The Use of Functionals in the Analysis of Non-linear Physical Systems†
TL;DR: In this paper, the authors present a systematic development of this idea and present analogous expansions in a series of terms orthogonal with respect to input statistics, which is applicable equally to linear or non-linear systems.
ReportDOI
Theory of the analysis of nonlinear systems
TL;DR: This thesis is based on a thesis submitted to M.I.T. Dept. of Electrical Engineering, January 13, 1958 and aims to provide a history of electrical engineering in the United States.
Journal ArticleDOI
Functional Analysis Applied to Nonlinear Feedback Systems
TL;DR: An operator theory is outlined for the general, nonlinear, feedback loop and it is shown that feedback reduces distortion for band-limited inputs and an iteration whose rate of convergence is optimized is derived.