Development and Application of Small Spaceborne Synthetic Aperture Radars (1998) / Chapter Skim
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1 Introduction
1 Introduction
Pages 6-11
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From page 6... ...
The Landsat paradigm reoriented the remote sensing community toward detection of temporal change and away from the 1960s paradigm of spectral analysis of landscapes. The Inertia generated by more than a decade of such focus translates today into a nation whose familiarity with SAR data lags far behind its understanding of data sets derived from sensors operating In the visible near-infrared (VNTR)
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From page 7... ...
To ensure these developments, it will be necessary to make SAR data vastly more accessible to the science community. REQUEST FROM NASA The SAR study originally requested by NASA posed eight questions regarding the utility of a third Shuttle Radar Laboratory (SRL)
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-25 700 1 2 98 30 HH 204' so-sno 700 1 1 2~4 * Information unavailable NOTE: dB = decibels; HH = horizontal horizontal polarization; HV = horizoneal vertical polarization; VH= vertical horizontal polarization; W = vertical vertical polarization; Mbps = megabits per second; TBD = to be detennined.
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From page 9... ...
Small In this context refers to comparatively inexpensive spaceborne SAR, not to the specific LightSar baseline proposal of the Jet Propulsion Laboratory (JpL) .2 The stated objectives of the LightSAR program are "to validate key advances in synthetic aperture radar technology, and related systems, that will reduce the cost and enhance the performance of this and fixture US [Earthimag~ng]
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From page 10... ...
Data collected to serve one interest can also serve another. For example, the proposed LightSAR baseline design science requirements request that Earth's boreal, temperate, and tropical forest belts be imaged at least annually over a 1-month period to address questions related to the carbon cycle.
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From page 11... ...
Questions related to validating SAR applications (i.e., reducing system costs, optimizing weight and power requirements, and defining mission focus) are primary considerations in formulating a NASA SAR strategy.
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