Which country has launched new high-resolution Synthetic Aperture Radar (SAR) imaging satellite which provides accurate pictures of earth with ability to photograph detailed scenarios of its specific areas.

2016

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

A	China
B	US
C	Russia
D	India

Explanation:

Detailed explanation-1: -NISAR has a 240 km swath, 7 m resolution along track and 2-8 m resolution cross-track (depending on mode). In this way, SAR beats the resolution limits of what can physically be put in space to provide images and science of much higher quality than would be possible if the antenna size was used as is.

Detailed explanation-2: -Synthetic aperture radar was first used by NASA on JPL’s Seasat oceanographic satellite in 1978 (this mission also carried an altimeter and a scatterometer); it was later developed more extensively on the Spaceborne Imaging Radar (SIR) missions on the space shuttle in 1981, 1984 and 1994.

Detailed explanation-3: -SAR: The Power Tool of Remote Sensing Synthetic aperture radar (SAR), used to create the majority of the imagery available in the ASF archive, is one of the power tools of remote sensing. Synthetic aperture radar (SAR) bounces a microwave radar signal off the Earth’s surface to detect physical properties.

Detailed explanation-4: -Synthetic aperture radar (SAR) images are produced by an active system that sends a microwave signal from a sensor platform to the ground and detects backscattered waves that the ground reflects directly back to a receiver on the same platform, which can be borne aloft by either airplanes or satellites.

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