EE World Online

AWG option enables real-time frequency and amplitude control

Spectrum Instrumentation has introduced a Direct Digital Synthesis (DDS) option for its 65xx series Arbitrary Waveform ...
IEEE

Deep Learning-Based Spectrum Sensing With Fused Time-Frequency Representations

Abstract: In this letter, we design a spectrum sensing model based on multi-dimensional data. By leveraging the complementarity of spectrum-based multi-dimensional data, the separability of feature ...
IEEE

Spectrum-Modulated Frequency-to-Time Domain Signal Conversion for Microwave Imaging

Abstract: Most microwave imaging systems rely on transceivers or vector network analyzers that operate in the frequency domain. Since these systems measure S-parameters over a limited bandwidth, the ...
Frontiers

The frequency spectrum of the solar-wind magnetic-field fluctuations that reside outside the strong current sheets: fast and slow solar wind

Motivated by knowledge that directional discontinuities (strong current sheets) in the solar-wind magnetic time series have dominating effects on the magnetic power spectral density of the solar wind, ...
techxplore

Why low-frequency spectrum is emerging as a quiet contender for future networks

While the world sprints toward ever faster mobile speeds, another connectivity story is quietly unfolding at the opposite end of the dial. Low-frequency spectrum—the radio bands below one gigahertz ...