# Basic Principles of Radar Backscatter

This is the official forum for all four courses on radar backscatter.

# Discussion

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• # What is Radar Backscatter?

Posted by on March 11, 2021 at 7:22 am

### Q&A-Section: What is Radar Backscatter?

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replied 1 month ago 13 Members · 12 Replies
• 12 Replies
• ### Jack Richer

Member
March 14, 2024 at 9:30 am

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Member
February 3, 2024 at 12:30 pm

The amount of bouncing energy returning to the radar system after hitting a target on earth

• ### Mark Miller

Member
September 21, 2023 at 4:30 am

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• ### teaching pepper

Member
November 8, 2022 at 3:51 am

wow, now i just know that moto x3m

• ### Daniel Jahn

Member
February 14, 2022 at 9:45 pm

In the table, we have sigma^0 = beta^0 * sin(i_{x,y}). Is this correct? The bottom image (“Normalization areas for SAR backscatter.”) would suggest sigma^0 = beta^0 / sin(i_{x, y}).

• ### Liliana Carolina Castillo Villamor

Member
January 15, 2022 at 12:23 am

Hi Everyone,

I have a question related to the probability density function of the backscatter pixels in an area considered homogenous. I’ve read that they follow a Gamma distribution, however, for Sentinel-1, I would like to know if the gamma distribution only describes homogeneous areas using Single Look Complex (SLC) products or also GRD products as delivered by GEE. Thanks in advance for any help. Liliana

• ### Anant Sharma

Member
July 12, 2021 at 10:11 am

amount of radiation received from a illuminated surface at the active micro wave remote sensing system

• ### Nour El Yakine Ben Hachani

Member
June 15, 2021 at 6:19 pm

.

• ### Ravi Virk

Member
April 23, 2021 at 6:30 am

Amount of backscattered energy going back to the sensor depending on factors such as surface roughness, dielectric properties, viewing geometry etc.

• ### Ngoc Anh Nguyen

Member
April 22, 2021 at 3:35 am

• ### Syeda Ali

Member
April 1, 2021 at 10:21 am

The reflected radiations of an active microwave remote sensing sensor from the Earth’s surface is the radar backscatter. It can be represented as sigma naught, beta naught, or gamma naught.

• ### orabelle hana

Member
November 10, 2023 at 4:18 am