DocumentCode :
2293795
Title :
Improving the range/time sidelobes of large bandwidth discontinuous spectra HF radar waveforms
Author :
Green, S.D. ; Kingsley, S.P.
Author_Institution :
Sheffield Univ., UK
fYear :
1997
fDate :
7-10 Jul 1997
Firstpage :
246
Lastpage :
250
Abstract :
Due to heavy user congestion, many over-the-horizon (OTH) HF radars are restricted to operating within narrow frequency bands. As a result the achievable range resolution with such radars is poor. In order to operate a wideband HF radar, the signal spectrum must be made discontinuous, which gives rise to high range sidelobes and thus a low signal dynamic range. We introduce a new signal processing technique to lower the range sidelobes associated with discontinuous spectra signals. Results are presented for a repeated linear FM test case and show significant range sidelobe reduction using the new algorithm
Keywords :
radar signal processing; HF radar waveforms; OTH radar; algorithm; discontinuous spectra signals; high range sidelobes; large bandwidth discontinuous spectra; linear FM test case; low signal dynamic range; over the horizon HF radar; range resolution; range sidelobe reduction; range/time sidelobes; signal processing; signal spectrum; user congestion; wideband HF radar;
fLanguage :
English
Publisher :
iet
Conference_Titel :
HF Radio Systems and Techniques, Seventh International Conference on (Conf. Publ. No. 441)
Conference_Location :
Nottingham
ISSN :
0537-9989
Print_ISBN :
0-85296-688-1
Type :
conf
DOI :
10.1049/cp:19970798
Filename :
607591
Link To Document :
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