depending on whether the unpredictable digital signature is placed on the spread-spectrum code or the navigation data. These cryptographic signatures could be placed on WAAS signals or existing or future GPS signals to provide authentication of the source ...
Putting his feet to the test, he decided that the only way to truly understand New York was to walk virtually every block of all five boroughs–an astonishing 6,000 miles. His epic journey lasted four years and took him to every corner of Manhattan, Brooklyn, Queens, the Bronx, and Stat...