scholarly journals The Analytical Solution to the Temporal Broadening of a Gaussian-Shaped Radio Pulse by Multipath Scattering from a Thin Screen in the Interstellar Medium

2014 ◽  
Vol 126 (939) ◽  
pp. 476-481 ◽  
Author(s):  
M. M. McKinnon
Keyword(s):  
Analytical Solution ◽  
Interstellar Medium ◽  
Radio Pulse ◽  
Multipath Scattering ◽  
Temporal Broadening ◽  
Thin Screen

scholarly journals Обнаружение хаотических радиоимпульсов с помощью ансамбля детекторов огибающих

2021 ◽  
Vol 47 (1) ◽  
pp. 27
Author(s):  
Ю.В. Андреев
Keyword(s):  
Analytical Solution ◽  
Error Probability ◽  
Signal To Noise Ratio ◽  
Radio Pulse ◽  
Detection Error ◽  
Signal To Noise ◽  
Pulse Detection ◽  
Noise Ratio

Detection of ultrawideband chaotic radio pulses with ensemble of noncoherent receivers based on envelope detectors is investigated. Analytical solution is derived for the detection error probability as a function of signal-to-noise ratio at the detector input. The sensitivity of the radio pulse detection (by signal-to-noise ratio) is shown to increase in proportion to the number of detectors.

scholarly journals Interstellar Scattering

1984 ◽  
Vol 110 ◽  
pp. 303-307
Author(s):  
James M. Cordes
Keyword(s):  
Interstellar Medium ◽  
Electron Density ◽  
Angular Size ◽  
Density Fluctuations ◽  
Length Scale ◽  
Radio Sources ◽  
Fine Scale ◽  
Interstellar Scattering ◽  
Electron Density Fluctuations ◽  
Temporal Broadening

Fine scale electron density fluctuations in the interstellar medium (ISM) are manifest as scintillations and temporal broadening of pulsar signals and as angular broadening of galactic and extragalactic sources. Although scattering off the fluctuations is often a nuisance for conventional studies of radio sources, analysis or searches for interstellar scintillations (ISS) can lead to information about the ISM or radio sources that otherwise would not be obtainable. For example, the length scale probed by ISS in the ISM is typically 1011 cm and the characteristic angular size for quenching ISS is less than 1 μarc sec.

scholarly journals Interstellar Scattering and the Pulse from the Vela Pulsar

1971 ◽  
Vol 46 ◽  
pp. 217-221
Author(s):  
M. M. Komesaroff ◽  
P. A. Hamilton ◽  
J. G. Ables
Keyword(s):  
Interstellar Medium ◽  
Wavelength Range ◽  
Fourth Power ◽  
Magnetic Pole ◽  
Rotation Measure ◽  
Interstellar Scattering ◽  
Vela Pulsar ◽  
Multipath Scattering ◽  
Pulse Broadening

Measurements of PSR 0833 − 45 were made at wavelengths of 21, 48, 73 and 100 cm. Pulse broadening proportional to about the fourth power of the wavelength was found, consistent with multipath scattering in the interstellar medium. It is further concluded that the rotation measure was constant at 33.2 rad m−2 across this wavelength range, supporting the conclusion that the radiation originates in the vicinity of a magnetic pole.

PRONAOS observations of the interstellar medium: New insights on interstellar Dust

2002 ◽  
Vol 4 ◽  
pp. 9-9
Author(s):  
I. Ristorcelli ◽  
B. Stepnik ◽  
X. Dupac ◽  
A. Abergel ◽  
J. P. Bernard ◽  
...  
Keyword(s):  
Interstellar Medium ◽  
Interstellar Dust
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