Mani S Prasad

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Verified

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• PHD
• director at Amity University

Introduction The Traveling Salesman Problem (TSP) is a widely studied NP-complete optimization challenge with significant theoretical and practical implications Methods This study proposes a hybrid quantum-classical framework using a Quantum-Inspired Evolutionary Algorithm (QEA) with Sort Gray Binary Encoding to solve the TSP. The proposed method g...

Introduction In this paper, we explore the world of flexible patch antennas, specifically focusing on their horizontal V-folding percentages. The folding of these antennas plays a crucial role in the realm of wireless communication. Methods Our V-folding antenna is ingeniously crafted for seamless communication with objects featuring sharp curves....

In the past three decades, for economical space transportation, minimum energy transfers in orbit or trajectories is sought. This is done via in-depth research to understand intricate N-body problem dynamical structure. To deduce preferable and promising economical transfer trajectories, dynamical attributes of CRTBP is taken into consideration whi...

This paper discusses the design of helmet-mounted conformal patch antenna, operating at two different frequencies, i.e., 2.45 and 4.85 GHz, which can be used for the communication purpose in military applications. This antenna is designed with substrate FR-4 of dielectric constant 4.3, thermal conductivity of 0.3 W/K/m, and having thickness of 1.60...

The possibility of using the bioelectrography method for detecting pathology of internal organs is considered. Sets of data sets for machine learning are formed on the basis of ultrasonic diagnostics readings. Machine learning methods were analyzed with an assessment of the feasibility of their use. The results of detection of pathology of in...

This paper investigates an original concept of electro-geometrical analysis of flexible microstrip antenna. The research work is focused on the analysis of the innovative effect of “V”-shape folding on the resonance frequency and input impedance of microstrip patch antenna. The V-folded antenna is assumed to behave as an arm constituted by horizont...

This book chapter describes a circuit investigation on millimetre wave negative group delay (NGD) function. The main specifications of unfamiliar bandpass (BP) NGD function are defined. The topological description of the li-topology to be exploited in the chapter is developed. The design method of millimetre wave NGD li-circuit is described. Proof...

Irreducible polynomials play an important role in design of Forward Error Correction (FEC) codes for data transmission with integrity and automatic correction of data, as for example, Low-Density Parity Check codes. The usage of irreducible polynomials enables construction of non-prime-order finite fields. Most of the irreducible polynomials belong...

Selection of genetic material based on sociocultural inheritance in nature is the central theme of dual inheritance theory (DIT) or gene-culture co-evolution theory. Recent studies attribute cases of lactase persistence, high-altitude adaptation in Tibetans, adaptation of heat-generating body fat in cold areas etc. to such inheritance. In DIT, soci...

National Aeronautics and Space Administration (NASA) Deep Space Network (DSN) currently administers the navigation system for all of NASA’s Martian spacecraft landers. For its travel to Mars, the spacecraft is located and guided via 2-way radio communication and navigation system. Although beyond par navigation potential is guaranteed by DSN, such...

In past three decades, for economical space transportation, minimum energy transfers in orbit or trajectories is sought for. This is done via in-depth research to understand intricate N-body problem dynamical structure. To deduce preferable and promising economical transfer trajectories, dynamical attributes of Circular Restricted Three Body Proble...

Human-driven planetary missions rely primarily on efficient communication within the mission base and Earth. Until now, for maintaining contact with Earth, either Martian robotic explorers, consisting of orbiter or another spacecraft, have been used. For a manned mission, reliance over one spacecraft, for communication, can be catastrophic in case...

The majority of the landing sites that have been proposed for NASA’s eventual lunar return missions primarily focused on the regions around the poles. Either the direct Line of Sight (LoS) to planet Earth is generally restricted from such locations or does not exist at all. To resolve such issues, communication relay satellites are necessitated for...

Satellite constellations are of utmost importance nowadays, since Earth is ‘inch-by-inch’ spanned in terms of communication. Depending on factors such as intended recipients of the service or capability and communication type required, satellite constellation deployment requirement varies. Satellite coverage and the resulting ground tracks are calc...

Precision orbit determination (POD) these days emerging to be one of the paramount research domains in spaceflight tasks, predominantly in altimetric tasks such as earth observing system mission: Ice, Cloud, and land Elevation Satellite (ICESAT) mission, satellite oceanography mission: JASON-1, and ICESat, and ocean surface topography mission: TOPE...

Synthetic Aperture Radar (SAR) is a moving platform-based radar imaging processing system. In order to provide day-and-night imagery, the Space-borne Radar Systems (SRS) is a recommended United States Defense SAR system. There are multiple open-source methodologies for analysis that consider distinct multiple SAR constellations in terms of cost, pe...

The main objective for the orbit transfer problem is the optimal minimization of time and fuel. In this research, the 2-body system is represented by a nonlinear dynamic system. Theoretical analysis of Euler-Lagrange and Hamiltonian function is implemented for the application of optimal control. Certain assumptions are taken into account such as co...

There has been significant research into the use of reflected GPS signals for remote sensing. The reflected GPS signals may contain information on soil moisture, ocean waves, and altitude [1]-[4]. Space radar systems have also been a topic of intense interest for several decades, as a means of providing global coverage for both military and geoscie...

This work is aimed at evaluating the extent to which numerical bifurcation analysis tools can contribute to the determination of Regions of Attraction (ROA) for stable solutions of a dynamical system. The focus is on different flight scenarios within a safe flight envelope for a mathematical model of an airliner, aimed at being able to contribute t...

Precise positioning using the Global Positioning System (GPS) requires accurate knowledge of the satellite orbits. The International GNSS Service (IGS) distributes post-processed GPS satellite orbits that give the satellite positions at 15-minute intervals. For GPS applications involving high-rate (1 Hz) GPS, it is necessary to know the satellite p...

An optimal path planning method for multiple autonomous UAVs have been based on the modification of Rapidly-exploring Random Tree (RRT) algorithm by using the Rapidly-exploring Random Tree (RRT). The proposed method improves the path of RRT algorithm in 2D configuration space. The improved RRT algorithm is used to form the same path for each iterat...

The Europa Orbiter Mission is designed to search for subsurface liquid oceans on the third largest moon of Jupiter, Europa. The primary objective of this research is to analyze the optimal orbit insertion maneuver that will put the spacecraft into orbit around Jupiter. It was found that an impulsive velocity change of-1.33 km/s was required to put...

The Europa Orbiter Mission is designed to search for subsurface liquid oceans on the third largest moon of Jupiter, Europa. The primary objective of this research is to analyze the optimal orbit insertion maneuver that will put the spacecraft into orbit around Jupiter. It was found that an impulsive velocity change of-1.33 km/s was required to put...

The space shuttle provides for up to sixteen days in orbit to allow researchers to conduct microgravity research. Although conditions are less desirable during its construction, the International Space Station (ISS) promises to provide at least a thirty-day window of low microaccelerations after its completion. For both the shuttle and the ISS, act...

Most interplanetary spacecraft have used finite burns to escape Earth's orbit and be captured by their destination's gravity. Solar sail is an attractive technology to potentially lessen propellent expenditure. Optimal control of the sail coning angle to the Sun can both reduce transit time and the mission's propulsive velocity change. This researc...

In the last few decades, electric propulsion systems have found use in science missions conducted by NASA, JAXA, and the ESA. [2] electric propulsion systems, such as an ion engine, are attractive options in mission design due to their high total DV to propellant mass ratios. Introductory material in orbital mechanics generally approaches orbital m...

High area-to-mass ratio (HAMR) objects are a new class of debris objects that have been found in GEO-like orbits with high eccentricities. It is speculated that these objects originated from satellites in GEO and migrated to their current orbits. This migration is likely due to perturbations that have a strong impact on HAMR objects because of thei...

The Europa Orbiter Mission is designed to search for subsurface liquid oceans on the third largest moon of Jupiter, Europa. The primary objective of this research is to analyze the optimal orbit insertion maneuver that will put the spacecraft into orbit around Jupiter. It was found that an impulsive velocity change of-1.33 km/s was required to put...

The manned lunar missions Apollo 15, 16, and 17 carried a laser altimeter for determination of lunar topography beneath the ground track. Errors in altimetry are primarily due to limitations in orbit propagation due to incomplete, low-resolution gravity models. Systematic biases reflecting predictable orbit errors may present in altimetry data. Thi...

The main purpose of this work was to spear head research and development in Micro Aerial Vehicles (MAVs) especially in the development small flapping wing systems which can greatly be used for defense as well as surveillance purposes. This project focused on the development of a flapping wing mechanism with a wing span of just 3 cm using a piezoele...

The current model for kinematics and aerodynamics of a flapping wing system with double articulation is introduced by using strip theory approach based on blade element theory, which is complex. This research helped to formulate the model for kinematics and aerodynamics of a flapping wing system with double articulation using the rigid body approac...

Path planning algorithms play a significant role in autonomous navigation problems. There are several algorithms to compute the optimal path through a co-operative environment. However, for uncooperative environment, finding the global minima is not certain. There are effective algorithms like dynamic A* (D*), for finding an efficient path in uncoo...