A review–unguided optical communications: Developments, technology evolution, and challenges

AAB Raj, P Krishnan, U Darusalam, G Kaddoum… - Electronics, 2023 - mdpi.com
This review paper discusses the complete evolution of free-space optical (FSO)
communication, also known as unguided optical communication (UOC) technologies, all the …

Historical perspective of free space optical communications: from the early dates to today's developments

AB Raj, AK Majumder - Iet Communications, 2019 - Wiley Online Library
This survey article discusses the revolutions of wireless communication technologies right
from the prehistoric man's fire signals to today's space optical communications. A brief …

Extraction of Doppler signature of micro‐to‐macro rotations/motions using continuous wave radar‐assisted measurement system

HC Kumawat, A Bazil Raj - IET Science, Measurement & …, 2020 - Wiley Online Library
Mechanical–structural vibration and/or rotational parts of the targets will induce micro‐
Doppler frequency in addition to the main Doppler components. In the today's military era …

[图书][B] FPGA-based embedded system developer's guide

AAB Raj - 2018 - taylorfrancis.com
The book covers various aspects of VHDL programming and FPGA interfacing with
examples and sample codes giving an overview of VLSI technology, digital circuits design …

Data acquisition and signal processing system for CW Radar

HC Kumawat, AB Raj - 2019 5th International Conference On …, 2019 - ieeexplore.ieee.org
The purpose of this work to develop simple and effective data acquisition and signal
processing algorithm for radar system. Except hardware, data acquisition and signal …

Intelligent System for Real time detection and classification of Aerial Targets using CNN

M Upadhyay, SK Murthy… - 2021 5th International …, 2021 - ieeexplore.ieee.org
The advancements in drone technology has led to increased usage of drones in civil and
military which poses significant security related challenges. The small size of drones and …

Review of fibreless optical communication technology: History, evolution, and emerging trends

N Patle, AB Raj, C Joseph, N Sharma - Journal of Optical …, 2024 - degruyter.com
In the present era of technology, it is quite fascinating to design a system capable of
transmitting information from one end to another by using the optical spectrum. This system …

Comparison of different models for ground-level atmospheric turbulence strength (Cn2) prediction with a new model according to local weather data for FSO …

A Arockia Bazil Raj, J Arputha Vijaya Selvi… - Applied optics, 2015 - opg.optica.org
Atmospheric parameters strongly affect the performance of free-space optical
communication (FSOC) systems when the optical wave is propagating through the …

Pulse doppler processing-a novel digital technique

P Anju, AAB Raj, C Shekhar - 2020 4th International …, 2020 - ieeexplore.ieee.org
The deployment of pulse-Doppler radar becomes significant to have improved target's range
details/resolution and velocity profile. The computation associated with the process of …

Experimental study of sand-storm effect on digital fso communication link

S De, AAB Raj - … International Conference on Recent Trends on …, 2020 - ieeexplore.ieee.org
Over the last two decades, Free Space Optical (FSO) communication has become more and
more interesting topic of research, as an alternative to radio frequency communication. In …