Chirp pulse envelope evaluation for SAR image formation
| Autor: | Kerry L. Hill, Frank A. Scarpino, Eric J. Balster, Andrew M. Kordik |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Synthetic aperture radar
Image formation Computer science Pulse (signal processing) Image quality fungi Image processing 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences Raised-cosine filter 010309 optics Radar imaging 0103 physical sciences Chirp Envelope (radar) 0210 nano-technology Algorithm |
| Zdroj: | UEMCON |
| DOI: | 10.1109/uemcon.2017.8248973 |
| Popis: | In this paper, a number of pulse envelopes in a spotlight SAR simulation environment are tested. The simulation environment generates SAR phase history data from digital imagery so that the resulting SAR image formed from the phase history may be compared to the original with traditional image processing metrics such as peak signal-to-noise ratio (PSNR) and structured similarity index (SSIM). The results of this study show that a raised cosine envelope with rolloff factor β = 0.1 provides imagery of the best quality of the different envelopes tested, and provides an average of 1.06 dB gain in PSNR and 0.036 gain in SSIM when compared to a pulse with a rectangular envelope applied. |
| Databáze: | OpenAIRE |
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