End-to-End Sensor Calibration

When subsystems and components are integrated into an electro-optical system, complex interactions not captured by modeling and preliminary testing can be missed without end-to-end system testing. SDL provides end-to-end sensor calibration that measures the full system performance, including interactions between subsystems. Calibration results provide the means to convert raw instrument output to scientific units that are traceable to international standards. System problems identified during ground calibration can be corrected before commencement of the mission.

Features

  • Calibration in UV, VIS, and IR wavelengths
  • Simulate irradiance, radiance, polarization, and spectral sources
  • Space-borne and airborne sensors and GSE calibration
  • Thermal vacuum chambers to simulate the space environment
  • EO altitude chambers to provide simulated altitude for airborne testing

Experience

WISE

Wide-field Infrared Survey Explorer

The WISE cryogenically-cooled infrared telescope provided a complete stellar infrared map more than 1,000 times more detailed than previous surveys.

GIFTS

Geosynchronous Imaging Fourier Transform Spectrometer

GIFTS was successfully tested and calibrated as an engineering demonstration unit to ground-validate technologies critical to NOAA’s Hyperspectral Environmental Suite for the Geostationary Operational Environmental Satellite (GOES) system.

SPIRIT III

Spatial Infrared Imaging Telescope

SPIRIT III was the infrared sensor aboard MDA’s Midcourse Space Experiment (MSX). This long-wave infrared instrumentation package consisted of a high spatial resolution radiometer, a high spectral resolution interferometer-spectrometer, and an extremely high-off-axis-rejection telescope.

FIRST

Far-Infrared Spectroscopy of the Troposphere

FIRST is a long–wave imaging spectrometer that measures between 10–100 µm, filling a gap in the existing systems that monitored the Earth’s climate.

SBIRS

Space Based Infrared System

SBIRS High is a two-tier remote sensing satellite system working with other US defense systems to provide global below- and above-the-horizon detection as well as tracking and discrimination of missiles in their boost, post-boost, midcourse and reentry phases of flight.