TanDEM-X (TerraSAR-X add-on for Digital Elevation Measurement) opens a new era in space borne radar remote sensing. The first bistatic SAR mission, is formed by adding a second, almost identical ...

Also called a "Class 4 switch" or "TDM switch," a tandem switch is a computer that is specialized for TDM-based, circuit-switched telephone calls. Tandem switches are typically from Lucent and ...