Resources

Electronics, RF, mathematics, mechanics, and physics, plus articles on all sorts of things.

A map of what can be learned on the Analog Devices site, including resources and project ideas for analog circuits.

Very helpful visuals and videos across a range of control systems topics.

Open-source web apps comparable to their paid counterparts.

Open-source diagramming app, similar to LucidChart but free and login-free. Saves directly to the desktop.

Covers matched filtering and windowing, with MATLAB code and precise explanation.

The basics of running Python inside MATLAB. Could be very useful later.

Old but useful: surfaces, contours, in-plot annotations, and LaTeX equations. Also covers defining functions. Valuable for meshing functions of two variables.

Every plot type included in a standard license — including free versions of geoscatter and geoplot.

Detailed link budget analysis for 3-node links, which also lays out the basics of 2-node links.

Worked example with a Python script for a simple TDOA method.

Includes some incomplete MATLAB to practice with.

SDR project that plots hyperbolas on the earth.

Covers the trade-offs between correlation methods, with functions, examples, and visuals.

Academic paper on joint TDOA/FDOA, including methods to speed up the CAF. Good explanation of implementation from the signal level and localization via Newton's method.

Multiple DF approaches: amplitude-based, Doppler shift-based, and correlative interferometry (phase-based).

Angle of arrival and direction finding, including the equations.

A fairly simple algorithm that looks implementable. Want to try it soon.

Satellite tracker with high-definition visuals.

Good for finding TLE files by name or ID.

Penn State course covering GPS and GNSS signals and the parameters involved in satellite geometry.

Explains how tapering the power of a phased array relates to the Fourier transform between a square wave and a sinc. Also covers mutual coupling and quantization.

Works through the equations for ULAs — array factor, element factor, gain — plus sidelobes, grating lobes, and beam squint.

Antennas, signal transmission, phased arrays, and more.

Focuses on the advantages and drawbacks of a zero-IF architecture.

More in-depth, with plenty of equations useful for modeling.

Good baseline for the equations behind chirp waveforms.

Very good resource covering all the basics.

Lincoln Labs course. Watched these my first year — worth revisiting.

Goes over the simple radar equation and SNR equations.

Pulsed radar parameters, range and velocity ambiguity, and clutter and interference reduction.

Great resource for radar fundamentals.

How to calculate the frequency represented by a specific FFT bin.

Lecture videos, notes, and problem sets.

Covers matched filtering and windowing, with MATLAB code and precise explanation.

DSP documentation for Python — useful on its own, and especially for running Python through MATLAB.

Full textbook, free on the Analog Devices website.

Tutorial and course in one, with code and lessons. Very good basics.

Excellent article on I/Q data and complex numbers.

Lecture videos, notes, and problem sets.

Lecture notes, exams, and problem sets.

Lecture videos, notes, exams, and problem sets.

Lecture videos, notes, exams, and problem sets.

Lecture notes, exams, and problem sets.

Free articles introducing machine learning concepts, including the math and how to implement it.

Implementation of the clustering algorithm on GitHub, with good explanations.

Interactive explanation of least squares inside a linear algebra textbook.

Lecture videos, notes, exams, and problem sets.

Could sit under radar or DSP, but it is heavily mathematical — filed here for the day I have the urge to read it.

Tables and equations for propagation losses from gaseous absorption, cloud and fog attenuation, and scintillation, with respect to frequency and elevation angle.

Common for satellite navigation. Based on the center of an ellipsoid describing the earth per WGS 84 or NAD 83.