A talk, The Unreasonable Effectiveness of the Fourier Transform, was presented by [Joshua Wise] at Teardown 2025 in June last year. Click-through for the notes or check out the video below the break ...

Since the concepts of digital coding metasurface and programmable metasurface were put forward in 2014, the physical world of electromagnetics has been closely connected to the digital world of ...

Generalized Frequency Division Multiplexing (GFDM) is a flexible, block-filtered multicarrier modulation scheme that extends the principles of Orthogonal Frequency Division Multiplexing (OFDM) by ...

Abstract: While many questions still surround the creation and deployment of the smart grid, the need for a reliable communications infrastructure is indisputable. Developers of the IEEE 1901.2 ...

A powerful aspect of an optical communication link is that many different wavelengths selected from the spectral regions ranging from the O-band through the L-band can be sent along a single fiber ...

What is coded orthogonal frequency-division multiplexing (COFDM)? Coded orthogonal frequency-division multiplexing (COFDM) is a telecommunications modulation scheme that divides a single digital ...

Orthogonal Frequency Division Multiplexing (OFDM) is a multi-carrier modulation technique in which a high-rate data stream is divided into a number of parallel low-rate substreams, each modulating an ...