Research activities

Physics and Modeling

The marriage of physics and computational modeling

Abstract.
Physics and Modeling

Computational Modeling 
The use of computer-based mathematical models to simulate real-world systems.

Electromagnetic Theory 
The branch of physics that explains how electric and magnetic fields produce and affect electromagnetic waves.

Radar technology relies on a combination of Physics and computational methods to detect, analyze, and interpret objects in the surrounding environment.

In the intricate world of radar technology, the marriage of physics and computational modeling stands as the backbone that supports the entire framework of radar operation, from the initial system design to the sophisticated algorithms that process radar data.

At its core, radar technology is an application of electromagnetic theory, a branch of physics that describes the behavior of electromagnetic waves as they interact with matter. Radar systems emit electromagnetic waves, typically in the radio or microwave frequencies, and analyze the waves that are reflected back from targets to determine their distance, speed, and other characteristics.

I.
Chapter 1
Margin notes

Radar system
Radar is an electronic system which measures the range and bearing of objects by transmitting an electromagnetic pulse at the object and listening for the echo.

Electromagnetic modeling

A key tool in radar engineering, used to simulate how Electromagnetic Wave interact with objects and environments. 

Electromagnetic modeling is a cornerstone technique in the radar community, enabling the design, analysis, and optimization of radar systems. This technique encompasses both forward and inverse problem-solving approaches, each with its applications and challenges. Understanding these two aspects of electromagnetic modeling can significantly enhance the capability and functionality of radar systems in various applications, including defense, weather forecasting, and civilian applications like air traffic control and automotive radar.
II.
Chapter 2
Margin notes

Aperture
The opening or size of the radar antenna that affects image detail.

SAR Imaging

An advanced remote sensing technique that uses radar motion to produce highly detailed images of the Earth’s surface.

Synthetic Aperture Radar imaging is a revolutionary technology that has transformed the way we observe and understand the Earth’s surface, offering unparalleled insights in various fields such as environmental monitoring, military surveillance, and disaster management. Unlike traditional radar systems that rely on the physical aperture of the antenna to determine resolution, SAR utilizes the motion of the radar antenna over a target region to simulate a much larger aperture, thereby achieving high-resolution images.

III.
Chapter 3
Margin notes
electromagnetic wave (EMW)
a self-propagating wave of the electromagnetic field that carries momentum and radiant energy through space
Through-the-Wall Radar Imaging (EMW)
A developing technology that makes it possible to detect or visualize objects hidden behind barriers like walls, doors, and other opaque materials.

Tomography

A sophisticated imaging technique that uses radar signals to create detailed 3D representations of objects and hidden structures.

Tomography radar represents a significant advancement in the field of radar technology, leveraging the principles of tomographic imaging to reconstruct three-dimensional images of objects and structures from electromagnetic waves. This technique is akin to medical tomography, where cross-sectional images are generated using radio or microwave frequencies to probe the internal features of a medium or detect objects behind obstructions. An application of tomography radar is Through-the-Wall Radar Imaging (TWRI), which shows the capability of this technology to see beyond visible barriers.