Know about Radar

We all are fans of cricket. We always talk about Bret lee’s tremendous fast bowling. But have you ever wondered how they calculated his bowling speed with in seconds of time?

          Suppose we are travelling at a speed of 50kmph on a road where the speed limit is 45kmph. Though the speed variation between 45 and 50kmph cannot be found by human senses that much accurately, traffic police will still catch our tail. Have you ever wondered how he found out we are over speeding?

          Answer to both the questions above is given by simple Continuous wave radar or simply a CW-radar.

 A CW radar

Airborne radar will map ground in 3D

A SOFTWARE upgrade to existing radar systems will allow aircraft to map landscapes and buildings in 3D, and make it easier to spot part-hidden objects on the ground.

The software augments synthetic aperture radar (SAR), a technique that has been around since the 1950s. Airborne SAR works by sending radar signals towards each spot on the ground from several different points along a plane’s flight path. Signals bouncing back from a particular object on the ground are combined to create a 2D image as if it had been taken from a single viewpoint – and in more detail than would be possible from a single source.

RADARS FOR MILITARY

WITHOUT THESE RADARS DURING WARS, OUR WORLD WOULD HAVE BEEN TURNED INTO ASHES BY DICTATORS BY NOW… jai ho soldiers, jai ho radars…

Any one who knows about RADAR can easily find out that it was built to meet the requirements of military in tracking the enemy missiles, artifacts, ships, satellites… means when ever we want to track down something, we use these RADARS… hence we now also use these in military war fares… these can be termed as military radar systems…