QUALITY-ASSURANCE WORKSTATIONS

AIRSAR
The Quality assurance module (QA) of the AIRSAR Integrated Processor (AIP) is a menu-driven user interface designed to simplify the operation tasks with menus for Monitoring, Job Submission, Archiving and Data Analysis. The monitoring feature is designed to oversee the progress of the QA processes.

In order to ensure that consistent and trouble-free products result from each AIP run, the QA processes normally go through checkpoints of validation. The first step of verification is to check the data format of each the 12-channels. To submit a processor job, a setup program generates a profile of the run. At this point, a pre-QA process is carried out with raw data histogram, chirp spectrum, calibration tone estimate and motion data plots to validate the raw data. Following the range-Doppler processing, the co-registration verification is conducted. For the TOPSAR, ground control points are provided to validate each DEM. The DEM quality of the 1996 Pac-Rim TOPSAR satisfies our prediction, which is 3-5 meter height accuracy for flat areas . For the POLSAR data, the angle of hh-vv and signature are measured for each scene. The delivery media of the AIP products is either an universal ISO9660 CD-ROM or 8 mm data tape and image color prints are also provided to customers. A customer ordering system merging with the geographic map server, relational database, and internet Web browser will be on-line September 98.