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Title: Tangential velocity measurement using interferometric MTI radar

Abstract

Radar systems use time delay measurements between a transmitted signal and its echo to calculate range to a target. Ranges that change with time cause a Doppler offset in phase and frequency of the echo. Consequently, the closing velocity between target and radar can be measured by measuring the Doppler offset of the echo. The closing velocity is also known as radial velocity, or line-of-sight velocity. Doppler frequency is measured in a pulse-Doppler radar as a linear phase shift over a set of radar pulses during some Coherent Processing Interval (CPI). An Interferometric Moving Target Indicator (MTI) radar can be used to measure the tangential velocity component of a moving target. Multiple baselines, along with the conventional radial velocity measurement, allow estimating the true 3-D velocity of a target.

Inventors:
; ;
Issue Date:
Research Org.:
Sandia National Lab. (SNL-CA), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1175607
Patent Number(s):
6,982,668
Application Number:
10/675,328
Assignee:
Sandia Corporation
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION

Citation Formats

Doerry, Armin W., Mileshosky, Brian P., and Bickel, Douglas L. Tangential velocity measurement using interferometric MTI radar. United States: N. p., 2006. Web.
Doerry, Armin W., Mileshosky, Brian P., & Bickel, Douglas L. Tangential velocity measurement using interferometric MTI radar. United States.
Doerry, Armin W., Mileshosky, Brian P., and Bickel, Douglas L. Tue . "Tangential velocity measurement using interferometric MTI radar". United States. https://www.osti.gov/servlets/purl/1175607.
@article{osti_1175607,
title = {Tangential velocity measurement using interferometric MTI radar},
author = {Doerry, Armin W. and Mileshosky, Brian P. and Bickel, Douglas L.},
abstractNote = {Radar systems use time delay measurements between a transmitted signal and its echo to calculate range to a target. Ranges that change with time cause a Doppler offset in phase and frequency of the echo. Consequently, the closing velocity between target and radar can be measured by measuring the Doppler offset of the echo. The closing velocity is also known as radial velocity, or line-of-sight velocity. Doppler frequency is measured in a pulse-Doppler radar as a linear phase shift over a set of radar pulses during some Coherent Processing Interval (CPI). An Interferometric Moving Target Indicator (MTI) radar can be used to measure the tangential velocity component of a moving target. Multiple baselines, along with the conventional radial velocity measurement, allow estimating the true 3-D velocity of a target.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2006},
month = {1}
}

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