NDLI: Range sidelobe suppression in a desired Doppler interval

Content Provider	IEEE Xplore Digital Library
Author	Yuejie Chi Pezeshki, A. Calderbank, R. Howard, S.
Copyright Year	2009
Description	Author affiliation: Princeton University, Princeton, NJ 08544, USA (Yuejie Chi; Calderbank, R.) \|\| Colorado State University, Fort Collins, 80523, USA (Pezeshki, A.) \|\| DSTO, Edinburgh 5111, Australia (Howard, S.)
Abstract	We present a novel method of constructing a Doppler resilient pulse train of Golay complementary waveforms, for which the range sidelobes of the pulse train ambiguity function vanish inside a desired Doppler interval. This is accomplished by coordinating the transmission of a Golay pair of phase coded waveforms in time according to the 1's and -1's in a biphase sequence. The magnitude of the range sidelobes of the pulse train ambiguity function is shown to be proportional to the magnitude spectrum of the biphase sequence. Range sidelobes inside a desired Doppler interval are suppressed by selecting a sequence whose spectrum has a high-order null at a Doppler frequency inside the desired interval. We show that the spectrum of the biphase sequence obtained by oversampling the $length-2^{M}$ Prouhet-Thue-Morse (PTM) sequence by a factor m has an Mthorder null at all rational Doppler shifts θ0 = 2πl/m, where l ≠ 0 and m ≠ 1 are co-prime integers. This spectrum also has an (M - 1)th-order null at zero Doppler and (M - h - 1)thorder nulls at all Doppler shifts θ0 = $2πl/(2^{h}m),$ where l ≠ 0 and m ≠ 1 are again co-prime and 1 ≤ h ≤ M - 1.
Starting Page	258
Ending Page	262
File Size	1563232
Page Count	5
File Format	PDF
ISBN	9781424429707
DOI	10.1109/WDDC.2009.4800356
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-02-08
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Doppler shift Pulse compression methods Shape control Frequency Doppler radar Autocorrelation Australia Doppler effect Delay
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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