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A novel pair of mutually-orthogonal radar waveforms is proposed for simultaneous polarimetric measurements (SPM). The proposed waveform pair exploits the orthogonality features between different subcarriers within a single orthogonal frequency division multiplexing (OFDM) chip, and is called interleaved OFDM (I-OFDM). With I-OFDM signals the isolation limitation defined by the bandwidth time (BT) product for frequently used waveform pairs like linear frequency modulated (LFM) and phase-code modulated (PCM) signals, can be overcome. The performance features of I-OFDM signals are theoretically analyzed; the application of I-OFDM signals and the corresponding signal processing scheme in SPM are presented. A significant increase of the polarimetric measurements efficiency by utilization of the proposed I-OFDM signals has been verified by experiments using an operational radar system.
Published in:
Aerospace and Electronic Systems, IEEE Transactions on
(Volume:48
,
Issue:
3
)
Date of Publication: JULY 2012
- Page(s):
- 2085 - 2099
- ISSN :
- 0018-9251
- INSPEC Accession Number:
- 12852819
- Digital Object Identifier :
- 10.1109/TAES.2012.6237580
- Product Type:
- Journals & Magazines
- Date of Current Version :
- 11 July 2012
- Issue Date :
- JULY 2012
- Sponsored by :
- Aerospace & Electronic Systems Society
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