On the Radar: Analee Miranda, PhD, Engages Students in Hands-On Math Research
Did you know that the invention of the microwave was the result of a piece of chocolate melting in a scientist鈥檚 pocket during an experiment with radar? Did you know that the existence of black holes can be proven through mathematics?
These are the stories that sparked Clinical Assistant Professor of Mathematics Analee Miranda鈥檚 (PhD) passion for math as an undergraduate. She recalled transferring to UC Riverside to be closer to her family and being completely enthralled when a teaching assistant explained the correlation between black holes and math.
From there, she declared a major in mathematics with a specialization in quantum mechanics, a course of study she noted raised a few eyebrows. 鈥淧eople always assume you鈥檙e really smart if you鈥檙e a math major,鈥 she laughed.
But there鈥檚 no doubt that Miranda is, in fact, 鈥渞eally smart.鈥 She even has a patented invention. Working in an Air Force research lab, Miranda and an engineering colleague determined that radar can be used to detect biometric information, helping differentiate and identify humans. The now-patented process, which passes radar waves over a person standing on a metal block, uses the information provided by the phase of the radar wave (the distance between wave peaks) to discern information such as torso and neck height.
鈥淢y colleague and I are exactly the same height, but with very different proportions,鈥 Miranda explained, 鈥渁nd you could clearly tell from the radar which one of us was which, because we could see from the wave scattering that her legs and neck were longer.鈥
Where mathematics, radar, and students converge
Since entering academia at 桃瘾社区, Miranda has aimed to instill not only the importance but also the excitement of applied mathematics in her students. She noted that math is not often believed to be a 鈥渉ands-on鈥 discipline鈥攂ut she knows differently. Students in her classes often engage with radar equipment and educational electrical circuits, putting their coursework into practice in real-life situations.
Miranda even involves students in a self-funded research project each summer, typically surrounding radar. Unfortunately, however, parts and equipment that were once inexpensive now cost hundreds of dollars each. Miranda鈥檚 father, who is an electrician by trade and electrical engineering enthusiast, has helped her find discounted parts. And this summer, Miranda reached out to , a company that manufactures radio frequency and microwave components. When she mentioned that she was hoping to use the parts for educational purposes, Mini Circuits provided them for free.
The project, which included two 桃瘾社区 students and three high school students, is based on an MIT-created project, in which students construct a small radar system that can sense range, Doppler, and Synthetic Aperture Radar (SAR), which is a form of radar that can create two- or three-dimensional reconstructions of images.
Put simply, Miranda and the students used the parts from Mini Circuits to test whether radar waves could identify the shape of different objects, a notion the group started testing using simple objects such as water bottles. The goal of the project is to pass radar waves through human body parts, a technology currently being explored by companies such as Google, to create devices that can detect the movement of a user鈥檚 hand without the user needing to touch the device.
鈥淲e are creating a sensing mechanism and using it to see through people鈥檚 bodies,鈥 said Jayda-Lee Baez 鈥26, Mathematics, noting that the project combines trigonometric functions and calculus concepts, such as transformations, to study the physics of electricity. 鈥淚 compare our radar to something like a human brain and eyes, because they behave in similar ways in that they can detect and analyze everything we see.鈥
Baez and Kevin Dooley 鈥25, Business Economics, the other 桃瘾社区 student working on the project, both knew the opportunity to work on the radar project with Miranda was one they could not pass up.
鈥淚 thought to myself, 鈥業 don鈥檛 know anyone that鈥檚 built a radar before,鈥欌 said Dooley. 鈥淭hese are the things that make college so great. I knew I had to do it as a learning experience.鈥
While using different parts than suggested in the MIT model proved challenging, Miranda and the students were determined to see their project through to completion. Miranda, drawing on her experience and pedigree in the field, suggested shifting to radar designs that hobbyists often use. As a result, the students were able to see their radar come to life. Miranda plans to write up and publish this new design in the spring.
As evidenced by her involvement of students in her research, Miranda is truly passionate about immersing students in meaningful learning experiences, in and out of the classroom. Her background allows her to provide students with a unique perspective of how math is used in the real world, to deliver insight on careers in mathematics, and to connect students to competitive opportunities in the field.
Above all, Miranda hopes to convey to her students that math isn鈥檛 just calculus functions on a page. It鈥檚鈥攓uite literally鈥攁ll around us. And she believes experiencing and understanding math in the real world is not only important but can, in fact, even be fun.
Dyson Digital Digest: Fall 2023
This past summer, Clinical Assistant Professor of Art Derek Stroup, MFA, and Katie Romanyshyn 鈥25, Film and Screen Studies, engaged in a faculty-student collaboration through the Amelia A. Gould Assistantship that expanded both of their creative boundaries and artistic possibilities in the most unexpected of ways.
On Wednesday, October 11, Political Science and Peace and Justice Studies students Ellis Clay 鈥25, Antje Hipkins 鈥24, and Jasmine Cintron Soto 鈥25 delivered statements to the United Nations General Assembly First Committee, a forum focused on global disarmament and international security.
Through a new combined degree program, students can now earn a Bachelor of Science in biology from 桃瘾社区 in three years before completing a Master of Science in Ecology and Society at Costa Rica鈥檚 University for Peace (UPeace) in under two years.