{"product_id":"doppler-aliasing-reduction-in-wide-angle-synthetic-aperture-radar-using-phase-modulated-random-stepped-frequency-waveforms-9781249595724","title":"Doppler Aliasing Reduction in Wide-Angle Synthetic Aperture Radar Using Phase Modulated Random Stepped-Frequency Waveforms","description":"\u003cp\u003e • Author(s): Andrew W. Hyatt\u003cbr\u003e • Publisher: Biblioscholar\u003cbr\u003e • Publisher Imprint: Biblioscholar\u003cbr\u003e • BISAC: General\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e This research investigates the benefits of using several phase modulated Random Stepped Frequency (RSF) waveforms in a Wide-Angle Synthetic Aperture Radar (WA-SAR) scenario. RSF waveforms have been demonstrated to have desirable properties which allow for cancelling of Doppler aliased scatterers in WA-SAR images. Additional aliased energy reduction is realized by improving the uniformity of the fre- quency coverage across the waveform's bandwidth. Phase code modulations applied to the subpulses of a RSF waveform spread the subpulse frequency content and im- prove WA-SAR image quality. A length 13 Barker code applied to a RSF waveform produces an image with a 91.95% reduction in the aliased energy present relative to a WA-SAR image produced using uncoded RSF. Length 25 Frank and P4 coded RSF waveforms reduce aliased energy by 96.65% and 96.72% respectively. Additionally, phase coded RSF waveforms produce images with improved noise-free dynamic range capabilities. The Barker, Frank and P4 coded waveforms improve the noise-free dynamic range by 9.4 dB, 12.6 dB, and 12.4 dB, respectively. \u003cbr\u003e\u003c\/p\u003e","brand":"Biblioscholar","offers":[{"title":"Paperback","offer_id":47599190278295,"sku":"9781249595724","price":5100.0,"currency_code":"INR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/3471\/1191\/files\/9781249595724.webp?v=1775003483","url":"https:\/\/atlanticbooks.com\/products\/doppler-aliasing-reduction-in-wide-angle-synthetic-aperture-radar-using-phase-modulated-random-stepped-frequency-waveforms-9781249595724","provider":"Atlantic Books","version":"1.0","type":"link"}