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(IVAR) - Final Report - Strategic Environmental Research and ...

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Figure 6-38. The progression of the targets three six minutes later after the beginning of the<br />

simulation.<br />

Validation by Image Comparison.<br />

Figure 6-39 is a picture of the analog BirdRad display generated by the Furuno 2155BB<br />

electronics <strong>and</strong> captured with a Foresight video capture board <strong>and</strong> software (see Figure 2-2). We<br />

selected the 2155BB’s “True Trail” mode so that the radar returns from the current scan are<br />

displayed in yellow <strong>and</strong> up to 15 prior returns are displayed in increasingly dark shades of blue.<br />

The current returns (yellow) overwrite (<strong>and</strong> mask) the blue of prior scans (see Section 2.4.2 for a<br />

discussion of the True Trail mode).<br />

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