Spectral Estimation: Theory, Apps, & Digital Signal Processing

SpectrumSolvers™, a Spectral Estimation Application
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Which estimator is best for your job?  SpectrumSolvers™ (free) program helps Find best Spectral Estimation Method for a Power Spectral Density plot.  A menu of 10+ spectral estimators from Steven Kay's textbook 'Modern Spectral Estimation' 1988 is available to choose from.  The results differ dramatically from one estimator to another.  Plus, varying input parameters and/or number of points may provide discrepancies. Observe how zero padding effects your results.  Manufacturing companies take note!  Some estimators can detect signals 50 to 100 dB from main signal.  See documented example!  The unwritten rule of '30 dB is okay' (i.e. hidden) is no longer true.  Download at https://goal-driven.net/apps/spectrumsolvers.html .

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Phil B Brubaker

Calculus-level (Programming) Language and Apps

FC-Compiler™ is a (free) Calculus-level Compiler that simplifies Tweaking parameters in ones math model.  The FortranCalculus (FC) language is for math modeling, simulation, and optimization.  FC is based on Automatic Differentiation that simplifies computer code to an absolute minimum; i.e., a mathematical model, constraints, and the objective (function) definition.  Minimizing the amount of code allows the user to concentrate on the science or engineering problem at hand and not on the (numerical) process requirements to achieve an optimum solution.  Download at https://goal-driven.net/apps/fc-compiler.html

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Profile picture of Phil B Brubaker

Phil B Brubaker