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):
- 6982668
- Application Number:
- 10/675,328
- Assignee:
- Sandia Corporation
- Patent Classifications (CPCs):
-
G - PHYSICS G01 - MEASURING G01S - RADIO DIRECTION-FINDING
- 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 = {Tue Jan 03 00:00:00 EST 2006},
month = {Tue Jan 03 00:00:00 EST 2006}
}
Works referenced in this record:
Clutter effects on ground moving target velocity estimation with SAR along-track interferometry
conference, May 2004
- Chiu, Shen
- IGARSS 2003. 2003 IEEE International Geoscience and Remote Sensing Symposium. Proceedings (IEEE Cat. No.03CH37477)
Moving target performance for RADARSAT-2
conference, January 2000
- Thompson, A. A.; Livingstone, C. E.
- IGARSS 2000. IEEE 2000 International Geoscience and Remote Sensing Symposium. Taking the Pulse of the Planet: The Role of Remote Sensing in Managing the Environment. Proceedings (Cat. No.00CH37120)