High-Level Project Summary
A synthetic aperture radar (SAR) is an active sensor that transmits microwave signals and then receives back the signals that are reflected or backscattered. There are 5 main properties of SAR which are high-resolution capability (independent of flight altitude), weather independence by selecting proper frequency range, day/night imaging capability due to own illumination, complementary to optical systems and polarization signature can be exploited (physical structure, dielectric constant). Our project video has thoroughly explained what SAR is, its mechanism, applications, and its benefits in the most simplest way as possible. It can help the common public to understand SAR better .
Link to Project "Demo"
Link to Final Project
Detailed Project Description
What exactly does it do? How does it work? What benefits does it have?
Synthetic Aperture Radar(SAR), is a technology that uses active data collection, where a sensor produces its own energy(Electromagnetic Waves) and then collects the amount of that energy reflected back after interacting with the Earth using a radar sensor. This produces two-dimensional or three-dimensional images
One of the benefits of SAR technology is that it is 24/7 reliable. Most satellites depend on solar illumination causing limited information to be gained during the night. SAR systems illuminate it on wavelength aiding it to be used reliably throughout the whole day. The wavelength the SAR system transmitted is able to penetrate through fogs and clouds to provide finer data. This is critical as it can easily help us to detect natural disasters such as hurricanes.
Another benefit of SAR technology is that we can obtain high-resolution imagery. SAR systems are able to transmit their own wavelength, so the system is able to regulate the wavelength that it is transmitting. For example, microwaves or X-bands. By using different wavelengths, we can be able to achieve detailed imagery where we can find a contrast between the imagery data produced. This is very beneficial as we can detect small objects such as using it to detect boats, plane crashes in seas, and even oil spillage at sea.
SAR technology also is able to provide 3d data and 3d monitoring. SAR systems are able to change the intensity of wavelength transmitted and from different amplitudes. This is able for us to detect changes on the surfaces of the earth in detail and changes between different dates. This technology is used in agriculture where they can monitor their extremely large plantation area. Not only that, due is the ability to detect on the surface of earth or infrastructure where it used to alert like power plant operators in case of emergency.
What do you hope to achieve?
The team really hopes to inspire the public into getting more knowledge on SAR technology. The team plans to do that by simply explaining how SAR technology works, how it benefits the human lifestyle and how the current world is using this technology. We really hope that our video opens up a passageway to other people on exploring more on the SAR technology and have fun learning it as much as the team enjoyed it.
What tools, coding languages, hardware, or software did you use to develop your project?
Since this project was carried out through online platforms, the team made use of multiple online platforms and apps to aid in doing this project. Our main platform was WhatsApp and Google Meet, where we used it to do our discussion, planning of our project, and dividing the tasks. We also used Microsoft Teams to record ourselves explaining the concept of SAR, and edited the clip using editing apps such as Flimora and Adobe Premiere Pro. We also made use of google apps such as google docs for our draft of our project and google slides to present our project demo.
Space Agency Data
NASA
1.https://appliedsciences.nasa.gov/sites/default/files/Session4-SAR-English_0.pdf
- Was used as our guide to SAR Interferometry
2.https://search.earthdata.nasa.gov/search?q=SAR&fdc=Alaska%20Satellite%20Facility
- Was used to get access to SAR imagery
Canadian Space Agency’s
1.https://www.asc-csa.gc.ca/eng/satellites/radarsat/default.as
- To get the most timely and high-quality SAR imagery products
Hackathon Journey
The experience of doing this challenge was fascinating. It was a good experience to work with team members that have good teamwork and the way they handled the project showed resilience, experience, knowledge, and critical thinking. We gained from the space world, especially on Synthetic Aperture Radar technology. We chose this challenge as we were amazed at how technology helps humans to overcome multiple obstacles and help us to ease our life. The team basically discussed from the planning to execution together through online platforms. The team constantly discussed and asked each other opinions for any room for improvement on doing this project. One of the challenges we faced while completing this challenge was everyone had a very busy schedule thus scheduling a meeting was really hard but every one of our teammates did their best to come together and give their best although we were all exhausted. We would really like to thank the team members as each one of us helped each other and had a great contribution to the project. We couldn't have done it without the help of our team leader who made sure everyone felt comfortable and did not get burned out by engaging and treat everyone well in the team.
References
- NASA. (2021, October 2). What is Synthetic Aperture Radar? NASA. Retrieved October 2, 2021, from https://earthdata.nasa.gov/learn/backgrounders/what-is-sar.
- Brown, P. author B. I., & Annekatrien, P. author B. (2014, September 5). What is the synthetic aperture in "Synthetic aperture radar" (SAR)? Digital Geography. Retrieved October 2, 2021, from https://digital-geography.com/what-is-the-synthetic-aperture-in-synthetic-aperture-radar-sar/.
- The key benefits a SAR constellation can bring to Earth observation - Capella Space. (2020, July 10). Retrieved October 2, 2021, from Capella Space website: https://www.capellaspace.com/the-key-benefits-a-sar-constellation-can-bring-to-earth observation/
- Geospatial World. (2019). What are SAR satellites and how do they work? [YouTube Video]. Retrieved from https://www.youtube.com/watch?v=j6jvzOP5oUA
- Manley, S. (2020). Satellites Use “This Weird Trick” To See More Than They Should - Synthetic Aperture Radar Explained. [YouTube Video]. Retrieved from https://www.youtube.com/watch?v=u2bUKEi9It4
Tags
#space #collaboration #experience
Global Judging
This project has been submitted for consideration during the Judging process.

