sar_summary

sar_summary - SYNTHETIC APERTURE RADAR (SAR) SUMMARY Range...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
SYNTHETIC APERTURE RADAR (SAR) SUMMARY Range Resolution (end view) q - look angle H - spacecraft height B - bandwidth of radar t - pulse length 1/ B C - speed of light Note the range resolution is infinite for vertical look angle and improves as look angle is increased. Also note that the range resolution is independent of the height of the spacecraft H . The range resolution can be improved by increasing the bandwidth of the radar. Shorter wavelength will enable higher bandwidth because the bandwidth is only a small fraction of the carrier frequency. H r D r = C 2 - slant range resolution R r = C 2 1 sin - ground range resolution
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Azimuth Resolution (top view) L - length of radar antenna r - nominal slant range H /cos q l - wavelength of radar Form a synthetic aperture that has a length of 2 R a . The improved azimuth resolution is Note the azimuth resolution is independent of spacecraft height and improves as the antenna length is reduced. One could form a longer synthetic aperture by steering the transmitted radar beam so it follows the target as the spacecraft (aircraft) flies by.
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 03/02/2011 for the course EDU 101 taught by Professor Billy during the Spring '11 term at Rio Grande.

Page1 / 5

sar_summary - SYNTHETIC APERTURE RADAR (SAR) SUMMARY Range...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online