Examined methods for measuring distances Examined GPS codes that allow a type of distance measurement and phase to be measured Examine how the range measurements are defined Use of carrier phase measurements Examine rinEx format and look at some \raw data
Today's Lecture Examine specifics of GPS signals Multiple modulations on same carrier signal Structure of signals GPS receiver operation and satellite acquistion
GPS Observables Today's class we start discussing the nature of GPS observables and the methods used to make range and phase measurements Start with idea of remotely measuring distances
Treat the basic description and dynamics of satellite orbits Major perturbations on GPS satellite orbits · Sources of orbit information: -SP3 format from the International GPS service Broadcast ephemeris message
Potential field based coordinates: -Astronomical latitude and longitude -Orthometric heights (heights measured about an equipotential surface, nominally mean-sea-level
Topic 8 16.31 Feedback Control State-Space Systems What are state-space models? Why should we use them? How are they related to the transfer functions used in classical control design and how do we develop a state- space model?
ntroduction The cargo world attempts to solve a very complex mission(problem) This presentation outlines the elements of the problem but does not define a specific mission I have been trying to understand this subject for a few years now
Lecture Outline Air Cargo Industry Types of air cargo and air cargo carriers Largest air cargo carriers Demand for Air Cargo Services Drivers of air cargo growth Constraints on growth Recent Trends in Air cargo
TOTAL CARGO MARKET GIANT MARKET CONSISTING OF TRUCKING RAIL SEABORNE AIR CARGO AS THE WORLD GETS SMALLER THE GROSS VOLUME OF FREIGHT HAS INCREASED DRAMATICALLY
