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ANALYSIS OF COPRIME ARRAYS ON MOVING PLATFORM

Citation Author(s):
Guodong Qin, Moeness G. Amin, and Yimin D. Zhang
Submitted by:
Guodong Qin
Last updated:
7 May 2019 - 8:45pm
Document Type:
Presentation Slides
Document Year:
2019
Event:
Presenters Name:
Moeness G. Amin
Paper Code:
ICASSP19005

Abstract 

Abstract: 

Moving platforms enable sparse arrays to assume higher degrees of freedom and lead to increased number of lags. In essence, array motion can fill the holes in the spatial autocorrelation lags associated with a fixed platform and, therefore, increase the number of sources detectable by the same number of physical array sensors. In this paper, we consider coprime arrays, and assume quasi-stationarity of the environment, where the source locations and waveforms are considered invariant over array motion of half wavelength. Expressions of the synthetic array comprising the original coprime array and its shifted version are derived, and analysis of the difference co-array corresponding to the combined array positions before and after motion is provided. It is shown that majority of, if not all, the holes in the original array position are filled by a small translation shift along the coprime array axis.

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Slides_ANALYSIS OF COPRIME ARRAYS ON MOVING PLATFORM.pdf

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