Sparrow Limit of Spectral Resolution in the Reflection Echelon and the Fabry-Perot Interferometer Having Surface Imperfections

Singh, Kehar; Bhatnagar, G. S.

doi:10.1364/ao.9.002326

Search citation statements

Order By: Relevance

Paper Sections

Select...

Introduction1

Citation Types

Supporting

Mentioning

Contrasting

Year Published

1971

2013

Publication Types

Select...

Article5

Relationship

Self Cite0

Independent5

Authors

Journals

Cited by 7 publications

(1 citation statement)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It is commonly thought to be a limit on the resolution of an imager, but it is not. A more useful concept is the Sparrow limit [16][17][18]. This is the minimum separation of two source points in order that the resulting beamform map has two distinct peaks with a dip in between the source locations.…”

Section: Introductionmentioning

confidence: 99%

Deconvolution of Sources in Aeroacoustic Images from Phased Microphone Arrays Using Linear Programming

Dougherty

Ramachandran

Raman

2013

International Journal of Aeroacoustics

View full text Add to dashboard Cite

A new deconvolution strategy for aeroacoustic beamforming based on linear programming (LP) is introduced. Results of an aeroacoustic test show that it produces virtually the same results as DAMAS in much less time. DAMAS, DAMAS2 and LP display superresolution, which is expressed in terms of the Sparrow resolution limit from optics. CLEAN-SC and TIDY did not achieve superresolution in the test, but did produce higher dynamic range than DAMAS and LP at high frequency.

show abstract

Section: Introductionmentioning

confidence: 99%