Saturday, May 23, 2009

Avoid Cell Phones For Long Duration Calls


Cell Phones these days have become one of the most vital element of our day to day life...it has now become a necessity of every individual...it has a lot of advantages but at the same time the consequences are far more worse. 


Synthetic-aperture radar (SAR) is a form of radar in which the large, highly-directional rotating antenna used by conventional radar is replaced with many low-directivity small stationary antennas scattered over some area near or around the target area. The many echo waveforms received at the different antenna positions are post-processed to resolve the target. SAR can only be implemented by moving one or more antennas over relatively immobile targets, by placing multiple stationary antennas over a relatively large area, or combinations thereof. SAR has seen wide applications in remote sensing and mapping.







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