6533b822fe1ef96bd127cacd

RESEARCH PRODUCT

A Method Based on Amplitude Probability Density Representation for Sounding High Frequency Noise in Ionospheric Channels

Sorecau EmilBouleanu IulianCraiu NeculaiBechet PaulMiclaus Simona

subject

PhysicsSpectrum analyzerDepth soundingAmplitudeAcousticsBandwidth (signal processing)Probability density functionNoise (electronics)Communication channelTime–frequency analysis

description

High Frequency (HF) communications efficiency require a precise characterization of the ionospheric channel’s noise. We present a rapid and accurate method to sound the HF ionospheric channels that enables tracing of the time-availability of the channel based on imposed electric field strength thresholds. The method makes use of the amplitude probability density implemented in a real-time spectrum analyzer. Sounding of 3, 10 and 20 kHz bandwidth channels in the 4.8 – 8.8 MHz range is exemplified and specific observations are presented.

https://doi.org/10.1109/mps52805.2021.9492553