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Method and apparatus for conducting remote surveys of the earth's crust

  • US 4,421,981 A
  • Filed: 04/28/1981
  • Issued: 12/20/1983
  • Est. Priority Date: 04/29/1980
  • Status: Expired due to Fees
First Claim
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1. A method for remotely surveying the earth'"'"'s crust, comprising the following steps:

  • (a) advancing a plurality of electromagnetic scanning devices along a known path at a known height and velocity above the earth'"'"'s surace;

    (b) simultaneously scanning a track of known width on the earth'"'"'s surface with said scanning devices;

    (c) detecting with said scanning devices electromagnetic radiation received from the earth'"'"'s crust along said scanned track, each scanning device responding to a different spectral range within a predetermined waveband of the electromagnetic spectrum,(d) producing a film record from each scanning device corresponding to the intensity of the radiant energy detected by the scanning device within its spectral range, and(e) scanning each said film record with a flying spot scanner and adjusting the individual rasters of said flying spot scanners to achieve registration of images of said film records produced by said flying spot scanners.

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