Cramér-Rao Lower Bound of Target Localization Method Based on TOA Measurements

Cramér-Rao Lower Bound of Target Localization Method Based on TOA Measurements

The Cramér-Rao bound of target localization method based on time-of-arrival measurements is analyzed. For the localization error analysis, the CRLB is derived under the assumptions that the measurement errors are independent and characterized by zero-mean Gaussian distributed process with identical...

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Format: Article
Language:zho
Published: The Northwestern Polytechnical University 2019-10-01
Series:Xibei Gongye Daxue Xuebao
Subjects:
target localization
cramér-rao lower bound
toa measurements
Online Access:https://www.jnwpu.org/articles/jnwpu/full_html/2019/05/jnwpu2019375p871/jnwpu2019375p871.html
id doaj-a26dd23932d440659f1fc7944653df57
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spelling doaj-a26dd23932d440659f1fc7944653df572021-05-02T23:30:10ZzhoThe Northwestern Polytechnical UniversityXibei Gongye Daxue Xuebao1000-27582609-71252019-10-0137587187710.1051/jnwpu/20193750871jnwpu2019375p871Cramér-Rao Lower Bound of Target Localization Method Based on TOA Measurements01School of Marine Science and Technology, Northwestern Polytechnical UniversityThe 28 th Research Institute of China Electronic Technology CorporationThe Cramér-Rao bound of target localization method based on time-of-arrival measurements is analyzed. For the localization error analysis, the CRLB is derived under the assumptions that the measurement errors are independent and characterized by zero-mean Gaussian distributed process with identical variance, which is not satisfied in the situation of localizing noncooperative targets. Cramér-Rao bound is deduced by using the fact that the variances of TOA measurements of different sensors are affected by the signal-to-noise ratio of the echo signal and are different from each other. Simulations of Monte Carlo experiments are carried out so as to verify the analytical results.https://www.jnwpu.org/articles/jnwpu/full_html/2019/05/jnwpu2019375p871/jnwpu2019375p871.htmltarget localizationcramér-rao lower boundtoa measurements
collection DOAJ
language zho
format Article
sources DOAJ
title Cramér-Rao Lower Bound of Target Localization Method Based on TOA Measurements
spellingShingle Cramér-Rao Lower Bound of Target Localization Method Based on TOA Measurements
Xibei Gongye Daxue Xuebao
target localization
cramér-rao lower bound
toa measurements
title_short Cramér-Rao Lower Bound of Target Localization Method Based on TOA Measurements
title_full Cramér-Rao Lower Bound of Target Localization Method Based on TOA Measurements
title_fullStr Cramér-Rao Lower Bound of Target Localization Method Based on TOA Measurements
title_full_unstemmed Cramér-Rao Lower Bound of Target Localization Method Based on TOA Measurements
title_sort cramér-rao lower bound of target localization method based on toa measurements
publisher The Northwestern Polytechnical University
series Xibei Gongye Daxue Xuebao
issn 1000-2758
2609-7125
publishDate 2019-10-01
description The Cramér-Rao bound of target localization method based on time-of-arrival measurements is analyzed. For the localization error analysis, the CRLB is derived under the assumptions that the measurement errors are independent and characterized by zero-mean Gaussian distributed process with identical variance, which is not satisfied in the situation of localizing noncooperative targets. Cramér-Rao bound is deduced by using the fact that the variances of TOA measurements of different sensors are affected by the signal-to-noise ratio of the echo signal and are different from each other. Simulations of Monte Carlo experiments are carried out so as to verify the analytical results.
topic target localization
cramér-rao lower bound
toa measurements
url https://www.jnwpu.org/articles/jnwpu/full_html/2019/05/jnwpu2019375p871/jnwpu2019375p871.html
_version_ 1721486644187496448

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