Statistical methods for radio frequency interference when estimating the performance degradation of digital radio receivers

2011 ◽  
Author(s):  
Kia Wiklundh
Keyword(s):  
Radio Frequency ◽  
Statistical Methods ◽  
Performance Degradation ◽  
Radio Frequency Interference ◽  
Digital Radio ◽  
Radio Receivers ◽  
Digital Radio Receivers

scholarly journals Methods of complex signal analysis for testing radio receiving equipment

2021 ◽  
pp. 95-102
Keyword(s):  
Signal Analysis ◽  
Complex Analysis ◽  
Harmonic Distortion ◽  
Complex Signal ◽  
Digital Radio ◽  
Radio Receivers ◽  
Digital Radio Receivers ◽  
Stationary Signals ◽  
New Criterion

In this paper, we consider methods for evaluating the quality of signals from special purpose digital radio receivers. We talk about the issues of increasing the reliability of the equipment due to the expansion of methods for complex analysis of signals during testing. The article pre-sents methods and algorithms for identifying distortions of signals based on the methods for wavelet analysis.Considered the existing technique for determining the harmonic distortion of a signal when testing digital radio-receiving equipment of a special purpose, based on the Fou-rier transform. Its shortcomings are shown in the analysis of rapidly changing signals. As an alternative, a technique for analyzing non-stationary signals based on wavelet transform was proposed, and a new criterion for estimating the harmonic distortion of signals, the distortion coefficient, was introduced.

Digital Radio Receivers and Direction-Finders

2018 ◽  
pp. 175-267
Author(s):  
Anatoly M. Rembovsky ◽  
Alexander V. Ashikhmin ◽  
Vladimir A. Kozmin ◽  
Sergey M. Smolskiy
Keyword(s):  
Digital Radio ◽  
Radio Receivers ◽  
Digital Radio Receivers

RADIO DETECTION OF COSMIC RAYS WITH LOPES

2006 ◽  
Vol 21 (supp01) ◽  
pp. 168-181 ◽  
Author(s):  
A. HORNEFFER ◽  
W. D. APEL ◽  
F. BADEA ◽  
L. BÄHREN ◽  
K. BEKK ◽  
...  
Keyword(s):  
Radio Pulse ◽  
Pulse Height ◽  
Cosmic Ray ◽  
Radio Interference ◽  
Air Showers ◽  
Digital Radio ◽  
Radio Receivers ◽  
Air Shower ◽  
Radio Detection ◽  
Digital Radio Receivers

Measuring radio pulses from cosmic ray air showers offers various new opportunities. New digital radio receivers allow measurements of these radio pulses even in environments that have lots of radio interference. With high bandwidth ADCs and fast data processing it is possible to store the whole waveform information in digital form and analyse transient events like air showers even after they have been recorded. Digital filtering and beam forming can be used to suppress the radio interference so that it is possible to measure the radio pulses even in radio loud environments. LOPES is a prototype station for the new digital radio interferometer LOFAR and is tailored to measure air showers. For this it is located at the site of the KASCADE-Grande air shower experiment. Already with the first phase of LOPES we have been able to measure radio pulses from air showers and show correlations between the radio pulse height and air shower parameters. The first part gives an introduction and presents the science results of LOPES, while the second part presents the hard- and software that enables LOPES to detect air short pulses.

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