16 citations · 51 across the 5 of their papers we have counts for
5 papers
Interferometric Visibility of a Scintillating Source: Statistics at the Nyquist Limit
Michael D. Johnson, Carl R. Gwinn
We derive the distribution of interferometric visibility for a source exhibiting strong diffractive scintillation, with particular attention to spectral resolution at or near the N…
Optimal Correlation Estimators for Quantized Signals
Michael D. Johnson, Hung H. Chou, Carl R. Gwinn
Using a maximum-likelihood criterion, we derive optimal correlation strategies for signals with and without digitization. We assume that the signals are drawn from zero-mean Gaussi…
Ultra-High Resolution Intensity Statistics of a Scintillating Source
Michael D. Johnson, Carl R. Gwinn
We derive the distribution of flux density of a compact source exhibiting strong diffractive scintillation. Our treatment accounts for arbitrary spectral averaging, spatially-exten…
Effects of Intermittent Emission: Noise Inventory for Scintillating Pulsar B0834+06
C. R. Gwinn, M. D. Johnson, T. V. Smirnova +1
We compare signal and noise for observations of the scintillating pulsar B0834+06, using very-long baseline interferometry and a single-dish spectrometer. Comparisons between instr…
Noise and Signal for Spectra of Intermittent Noiselike Emission
Carl R. Gwinn, Michael D. Johnson
We show that intermittency of noiselike emission, after propagation through a scattering medium, affects the distribution of noise in the observed correlation function. Intermitten…