Active and passive surface wave techniques
Found 3 free book(s)
PRINCIPLES OF REMOTE SENSING
www.wamis.orgRemote sensing techniques allow taking images of the earth surface in various wavelength region of the electromagnetic spectrum (EMS). ... This is known as active remote sensing, since the energy source is provided by the remote sensing ... EMR is a dynamic form of energy that propagates as wave motion at a velocity of c = 3 x 1010 cm/sec. The ...
REMOTE SENSING TECHNOLOGY AND ITS APPLICATIONS
www.ijoart.orgsurface. The middlewave infrared (MWIR) and long- -wave in-frared (LWIR) are within the thermal infrared region. These radiations are emitted from warm objects such as the Earth's surface. They are used in satellite remote sensing for meas-urements of the earth's land and sea surface temperature.
3-Phase Power Factor Correction, Using Vienna Rectifier ...
www.ixys.comreduced cable & switchgear sizes. Active PFC front ends also help meet the IEEE 519-92, IEC-555 and European EN 61000-3-2 standards for allowable harmonic contents of mains. 2.1 Advantages Although there are some passive and active 3-Phase PFC solutions, Vienna Rectifier is unique by virtue of its embodiment of several advantages: 1.