Engineering topics

Louet, Jacques

Publications and source records attributed to Louet, Jacques.

3 records

NASA NTRS1993

ERS-1: 18 months in orbit

Viewgraphs of the ERS-1 mission outline initial objectives, the orbit configuration, the instrumentation, the international cooperation, and the objectives still to be achieved. Graphs of specified performances include orbit control, inclination correction, solar array power, satellite stability, AMI performance verification, SAR radiometric stability, and RA performance stability. Also displayed are the number of planned (for November 92 through February of 93) and acquired SAR frames of the mission for each of the various sites throughout Europe and the world. A map locating these chosen sites is also included.

Louet, Jacques↗

NASA NTRS1993

ENVISAT ASAR

This document is a series of viewgraphs on the Envisat advanced synthetic aperture radar (ASAR). Viewgraphs cover mission objectives, modes of operation, instrument parameters, a comparison with the European Remote Sensing Satellite (ERS-1) active microwave instrument (AMI), instrument design, transmit/receive module and antenna tile specifications, data rates, swath coverage, and ASAR program schedule.

Louet, Jacques↗

NASA NTRS1993

Calibration: Practical experience with ERS-1

Viewgraphs and discussion of calibration:practical experience with ERS-1 are presented. Topics covered include: radiometric calibration, geometric calibration, phase calibration, and polarimetric calibration. Basic synthetic aperture radar (SAR) measurement parameters are radar backscattering, target position, target speed, and polarization. SAR calibration facilitates quantitative measurements needed to derive geophysical parameters of the area under observation from basic SAR measurements (e.g. soil moisture, biomass, ocean wave energy, ocean currents, ice type, and ice flow).

Louet, Jacques↗