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Title: SAR processing with stepped chirps and phased array antennas.

Abstract

Wideband radar signals are problematic for phased array antennas. Wideband radar signals can be generated from series or groups of narrow-band signals centered at different frequencies. An equivalent wideband LFM chirp can be assembled from lesser-bandwidth chirp segments in the data processing. The chirp segments can be transmitted as separate narrow-band pulses, each with their own steering phase operation. This overcomes the problematic dilemma of steering wideband chirps with phase shifters alone, that is, without true time-delay elements.

Authors:
Publication Date:
Research Org.:
Sandia National Laboratories
Sponsoring Org.:
USDOE
OSTI Identifier:
893561
Report Number(s):
SAND2006-5855
TRN: US200625%%345
DOE Contract Number:
AC04-94AL85000
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION; ANTENNAS; DATA PROCESSING; OPTICAL RADAR; TIME DELAY; Phased array antennas.; Signals and signaling.; Synthetic Aperture Radar.

Citation Formats

Doerry, Armin Walter. SAR processing with stepped chirps and phased array antennas.. United States: N. p., 2006. Web. doi:10.2172/893561.
Doerry, Armin Walter. SAR processing with stepped chirps and phased array antennas.. United States. doi:10.2172/893561.
Doerry, Armin Walter. Fri . "SAR processing with stepped chirps and phased array antennas.". United States. doi:10.2172/893561. https://www.osti.gov/servlets/purl/893561.
@article{osti_893561,
title = {SAR processing with stepped chirps and phased array antennas.},
author = {Doerry, Armin Walter},
abstractNote = {Wideband radar signals are problematic for phased array antennas. Wideband radar signals can be generated from series or groups of narrow-band signals centered at different frequencies. An equivalent wideband LFM chirp can be assembled from lesser-bandwidth chirp segments in the data processing. The chirp segments can be transmitted as separate narrow-band pulses, each with their own steering phase operation. This overcomes the problematic dilemma of steering wideband chirps with phase shifters alone, that is, without true time-delay elements.},
doi = {10.2172/893561},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Sep 01 00:00:00 EDT 2006},
month = {Fri Sep 01 00:00:00 EDT 2006}
}

Technical Report:

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