Do research. Feed your talent. Research not only wins the war on cliche, it's the key to victory over fear and it's cousin, depression.
― Robert McKee
Mr. Mehedi is a FAA-Licensed Remote pilot in Command (UAS-PIC 107). He is an expert of building drones of different size and shape from scratch. His core Research Interests are Remote sensing, GNSS Interferometry Reflectometry, Microwave Antenna, and Software defined Radio (SDR) based systems. For more info please visit the links below.
Md Mehedi Farhad, a graduate student in electrical and computer engineering from Bangladesh, stands on a chair to adjust equipment as he assists Electrical and Computer Engineering Assistant Professor Mehmet Kurum with a research project on MSU's intramural fields. Kurum is one of the lead faculty members for the Information Processing and Sensing (IMPRESS) Lab. Outfitted with an array of high-powered equipment, the lab conducts basic and applied research on the design, build and experimentation of sensing systems. In particular, the lab focuses on smartphone sensing in the emerging branch of "Signals of Opportunity," which aims to expand applications and capabilities of remote sensing.
Photo by: Logan Kirkland
NASA-JPL SMAPVEX22
SMAPVEX22: SMAP Calibration validation experiment at Massachusetts and Mill-brook New York IOP1 and IOP2 in May and July 2022.
Investigates the feasibility of using smartphones to sense water in soil by using reflected GPS signals. Researchers conducted a series of experiments to test the accuracy of this method.
GNSS (Global Navigation Satellite Systems) Reflectometry (GNSS-R)
200th Flight
Mississippi State University
Test Flight of the Big bird
Mississippi State University
David Young (The Drone Expert) Preparing to Fly
On Field Data Collection
The Giant is ready to fly (Heavy Duty Drone)
L-Band Dual-Polarized Microwave Radiometer
Passive microwave remote sensing provides crucial information about the earth’s surface, which is greatly valuable for precision agriculture, water management, forestry, and other environmental fields. A field-scale high-resolution remote sensing data product is one of the essential criteria to meet for agricultural applications. With the recent development of reliable unmanned aircraft systems (UAS), airborne deployment of remote sensing sensors has become more widespread. To facilitate the study of field scale radiometric response of the earth’s surface with varying surface conditions (barren or vegetated), we developed a UAS-based dual H-pol (horizontal) and V-pol (vertical) polarized radiometer operating in L-band (1400-1427 MHz). The custom dual-polarized antenna acquires surface emission response through a software defined radio (SDR). This SDR-based system provides full control over the data acquisition parameters such as band-width, sampling frequency, and data size. As radio frequency interference (RFI) is one of the most important challenges in radiometric measurement, post-processing the full-band radiometer data is needed to identify and remove the RFI contaminated data from the measurement, representing accurate earth emission. In this design, we implemented near-real-time RFI detection onboard during the flight to accelerate the post-processing. The altitude and the speed of the UAS can be varied to achieve desired ground resolution for the measurement.
On-Body MW ANTENNA: Designed with CST Studio Suite 2017, Working in ISM band 2.45GHz (Presented in IEEE Conference, September 2018 at MIST, Bangladesh)
ISM Band Antenna working in 2.45GHz
Antenna reflection coefficient
Far-Field 3D
SAR calculation result for on body implementation
Metamaterial Structure
Metamaterial Structure designed with CST Studio suit to Enhance Antenna gain
A metamaterial (from the Greek word μετά meta, meaning "beyond") is a material engineered to have a property that is not found in nature. They are made from assemblies of multiple elements fashioned from composite materials such as metals or plastics. The materials are usually arranged in repeating patterns, at scales that are smaller than the wavelengths of the phenomena they influence. (Source wiki)
UWB Antenna designed with CST operating in ISM band 5.8GHz
(Last Updated on May, 2023)