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Multi-Range Resolution Radar Using Sideband Spectrum Energy

Masanori SHINRIKI, Reiji SATO, Hiroshi TAKASE

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Summary :

A multi-range resolution radar using sideband spectrum energy is investigated. The basic system consists of a sharpening processor and least-error energy shaping filters. First, the sharpening processor makes long flat pulses sharpened. Next, the least-error shaping filters compress the input pulse into the desired pulse width. Then the output pulse width can become narrower than the reciprocal of the input bandwidth, because the least-error shaping filters make the equivalent bandwidth expanded by the enhancement of the sideband spectrum energy and the suppression of the main spectrum. The transmitted signals with simple phase modulation are studied to obtain the multi-range resolution where the pulse is compressed into a pulse with the same bandwidth and another pulse width equal to the reciprocal of the input bandwidth. The peak-to-sidelobe ratio after the pulse compression and the improvement factor of the output signal-to-noise ratio are measured. Further, the experimental results are shown to verify our proposed technique.

Publication
IEICE TRANSACTIONS on Communications Vol.E85-B No.8 pp.1640-1643
Publication Date
2002/08/01
Publicized
Online ISSN
DOI
Type of Manuscript
LETTER
Category
Sensing

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