The localization accuracy of a horizontal array observing a narrowband target with partial coherence

Autor:	B.H. Maranda, J.A. Fawcett
Rok vydání:	1993
Předmět:	Coherence time business.industry Absolute phase Mechanical Engineering Acoustics Ocean Engineering Upper and lower bounds Background noise Optics Narrowband Coherence (signal processing) Detection theory Electrical and Electronic Engineering business Mathematics Block (data storage)
Zdroj:	IEEE Journal of Oceanic Engineering. 18:466-473
ISSN:	0364-9059
DOI:	10.1109/48.262296
Popis:	The Cramer-Rao lower bound is used to assess the potential localization accuracy of a horizontal array observing a narrowband moving target. The narrowband signal received by the array is assumed to have only partial temporal coherence, which is modeled by taking the signal to be completely coherent over a data block but with an unknown absolute phase from block to block. A numerical example for a linear array illustrates the improvement in localization accuracy caused by an increase in the signal coherence time. The effect of target/array geometry is also studied. >
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::a035a231f9f40b76a7fad1a5db5d36cd https://doi.org/10.1109/48.262296 Zobrazit plný text záznamu