Radar echo processing with partitioned de-ramp
Abstract
The spurious-free dynamic range of a wideband radar system is increased by apportioning de-ramp processing across analog and digital processing domains. A chirp rate offset is applied between the received waveform and the reference waveform that is used for downconversion to the intermediate frequency (IF) range. The chirp rate offset results in a residual chirp in the IF signal prior to digitization. After digitization, the residual IF chirp is removed with digital signal processing.
- Inventors:
- Issue Date:
- Research Org.:
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1083027
- Patent Number(s):
- 8400349
- Application Number:
- 12/844,576
- Assignee:
- Sandia Corporation (Albuquerque, NM)
- 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
Dubbert, Dale F., and Tise, Bertice L. Radar echo processing with partitioned de-ramp. United States: N. p., 2013.
Web.
Dubbert, Dale F., & Tise, Bertice L. Radar echo processing with partitioned de-ramp. United States.
Dubbert, Dale F., and Tise, Bertice L. Tue .
"Radar echo processing with partitioned de-ramp". United States. https://www.osti.gov/servlets/purl/1083027.
@article{osti_1083027,
title = {Radar echo processing with partitioned de-ramp},
author = {Dubbert, Dale F. and Tise, Bertice L.},
abstractNote = {The spurious-free dynamic range of a wideband radar system is increased by apportioning de-ramp processing across analog and digital processing domains. A chirp rate offset is applied between the received waveform and the reference waveform that is used for downconversion to the intermediate frequency (IF) range. The chirp rate offset results in a residual chirp in the IF signal prior to digitization. After digitization, the residual IF chirp is removed with digital signal processing.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Mar 19 00:00:00 EDT 2013},
month = {Tue Mar 19 00:00:00 EDT 2013}
}
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