This course provides a broad introduction to optical remote sensing systems, including both passive sensors (e.g., radiometers and spectral imagers) and active sensors (e.g., laser radars or LIDARs). A brief review of basic principles of radiometry and atmospheric propagation (absorption, emission, and scattering) is followed by a system-level discussion of a variety of ground-, air-, and space-based remote sensing systems. Key equations are presented for predicting the optical resolution and signal-to-noise performance of passive and active sensing systems. Sensor system examples discussed in the class include solar radiometers, passive spectrometers and hyperspectral imagers, airborne imaging spectrometers, thermal infrared imagers, polarization imagers, and active laser radars (LIDARs and LADARs). The course material is directly relevant to sensing in environmental, civilian, military, astronomical, and solar energy applications.
- review the principles of optical radiometry used to describe and calculate the flow of optical energy in an optical sensor system or solar energy system
- describe how the atmosphere affects the propagation of optical radiation
- explain how optical atmospheric effects influence remote sensing measurements or solar energy
- use system parameters in basic radiometric calculations to predict the signal received by passive and active sensors
- compare systems at the block-diagram level remote sensing measurements
- explain the difference between passive imaging based on reflection and emission
- acquire the operating principles of laser radar (lidar/ladar) systems for distributed and solid target sensing