Mohammed Hossam -E- Haider

Military Institute of Science and Technology · Electrical, Electronic and Communication Engineering

In this paper, a biosensor utilizing metamaterials is designed and simulated to detect blood glucose concentration. The proposed sensor comprised of a microstrip patch antenna designed on a Rogers RT5880 substrate. A circular-shaped complementary split ring resonator (CSRR) cell is integrated onto the patch of the antenna which acts as the sensing...

Autism Spectrum Disorder (ASD) is a multifaceted neurodevelopmental disorder and genetically heterogeneous. Neuroimaging techniques like rs-fMRI have shown changes in brain structure and connectivity in ASD patients. Regions associated with language processing, sensory perception, and social communication are frequently affected. Early diagnosis of...

Two, four, eight, and sixteen-element patch array antennas for beam switching are presented in this study. For a 1×2 array, an aperture-coupled feeding mechanism is used to feed patches while a slot line on the ground plane provides the phase delay between antenna elements. The 1×2 array is used to create the 2×2, 4×2, and 8×2 arrays, and an equal...

The optimal utilization of high frequency (HF) communication in diverse applications, including military communication and emergency response, necessitates dependable and efficient HF communication links. The variability of the ionosphere presents difficulties in areas where there is a dearth of research on high-frequency propagation forecasting mo...

A Radar detect objects by the transmission and interception of the reflected radio wave from a target. The reflected signal gets distorted due to noise and it becomes difficult to detect a target. False alarms are seen due to the addition of multiple noise sources with the radar receiver signal which minimizes the target detection amplitude resulti...

The presence of white noise originates complexity in the sensor acquisition process for any aviation technology. A miniature error in sensor data acquisition can create a colossal impact, as the sensor pitch varies within 15 degrees. Fluctuations in sensor data acquisition can be calibrated through implementing conventional signal conditioning tech...

This work presents the prototype design of an advanced level Can Satellite (CanSat) with a view to developing an experimental CanSat with meteorological and object detection applications. Reduction of air pollution, the capability of imme�diate response in natural calamities, and the overall development of complex aerospace projects are the main in...

A simple electromagnetically coupled wideband and printed slot antenna with bi-directional radiation pattern is presented in this paper. The concept is based on generating multiple resonant frequency in proximity using wide-slot curved on the ground plane. Wide impedance bandwidth is realized by utilizing an octagonal slot with a parasitic patch of...

Street lighting system has always been the traditional manual system of illuminating the streets in Bangladesh, where a dedicated person is posted only to control the street lights of a zone, who roams around the zonal area to switch on and switch off the lights two times a day, which brings about the exhibition of bright lights in street even afte...

Street lighting system has always been the traditional manual system of illuminating the streets in Bangladesh, where a dedicated person is posted only to control the street lights of a zone, who roams around the zonal area to switch on and switch off the lights two times a day, which brings about the exhibition of bright lights in street even afte...

Satellite has become a fundamental contrivance for modern communication system. For the limitation to access and costly affair in the real satellite, a can sized satellite can be built which consists of all the real systems of a space satellite. In this work, a complete design and mechanism of a CanSat from assembling the payload to development of...

Satellite has become a fundamental contrivance for modern communication system. Most of the countries are proceeding towards launching their own satellite for a better navigation and communication purpose. So, it is essential for the students and researchers who aspire to contribute in this sector, to know how satellites are manufactured and operat...

This paper presents compendium analysis, simulation and comparison of conventional spiral/passive inductor and active inductor in 90nm CMOS process. Spiral inductor is a passive element, a coil of wire, follows several drawbacks regarding silicon area consumption, quality factor, and inductance. However, an innovative approach which replicates the...

Target detection of RADAR deals with different and manifold problems over few decades. The detection capability is one of the most significant factors in RADAR system. The main aim of detection is to increase probability of detection while decreasing rate of false alarm. The threshold of detection is modified as a function of the receiver noise lev...

An Attitude Heading Reference System (AHRS) provides 3D orientation of an aircraft (roll, pitch, and yaw) with instantaneous position and also heading information. For implementation of a low cost AHRS system Micro-electrical-Mechanical system (MEMS) based sensors are used such as accelerometer, gyroscope, and magnetometer. Accelerometers suffer fr...

Low flying aircrafts are always tough to track due to the radar horizon limitation. But an aircraft is always to be tracked for the safety purpose. However, there are means to augment the radar detection like aircraft to ground data link or satellite phone.The combination of Global Positioning System (GPS) and Global System for Mobile Communication...

In this paper a simulation model of perturb and observe (P&O) based maximum power point tracking (MPPT) controller has been developed. The controller consists of maximum power point (MPP) tracker and the optimal control unit. This proposed tracker estimates the voltages and currents corresponding to a maximum power delivered by solar photovoltaic (...

An Attitude Heading Reference System (AHRS) provides 3D orientation of an aircraft (roll, pitch, yaw) with instantaneous position and also heading information. For implementation of a low cost AHRS system Micro-electrical-Mechanical system (MEMS) based sensors are used such as accelerometer, gyroscope, magnetometer. Accelerometers suffer from error...

Aircraft landing is one of the most challenging stages of a flight. At this stage, the risk for aircraft to be drifted away from the runway or to collide with other aircraft is very high. So, a supreme accuracy is required to guide aircraft to runway touchdown point precisely. And the precision of approaches are permitted by means of appropriate gr...

With any communication system the received signal varies from the transmitted signal because of several transmission impairments. Various channel models are available to transmit data from one place to another. Rayleigh, Rician and AWGN fading channels are commonly used models of real world phenomena in wireless communication. The received signal f...

With the increasing demand of users' multi-constellation will be one of the best modes in future satellite navigation system. This basically provides a user the best accuracy in his position, motion and time. For given any positioning information at least four in view satellites are required. In this paper, the main idea is to integrate more satell...

This paper presents a smart charge controller (SCC) that can extract maximum power from solar panel and could make instant decision to protect the system. In the same time the designed controller can control high voltage disconnect (HVD)-reconnect, and low voltage disconnect (LVD)-reconnect. An improved maximum power point tracking (MPPT) is achiev...

Radar and radio cannot pickup the low flying aircraft due to the limitation of radar horizon, which severely poses flight hazards. As such, tracking of the low altitude aircraft in real-time is a dire need. Global Navigation Satellite System (GNSS) receiver can provide position from the satellites. On the other hand, Global System for Mobile Commun...

AHRS is an important system that provides the 3-dimensional orientation (roll, pitch and yaw or heading) of an aircraft from which the flying performance can be evaluated. The avionics of aircraft are very sophisticated and majority of them do not allow any external interface for logging. As such, a standalone external AHRS is needed which should b...

Global Positioning System is used by GPS tracking unit to determine the precise location of vehicles, persons or other assets and to record their position at regular intervals. The recorded data can be stored within the tracking unit or it may be transmitted to a data base or internet-connected computer device using a cellular, radio or satellite m...

Solar or photovoltaic (PV) system is an alternative clean energy resource that has received much attention in the research and industries. Solar charge controller (CC) is the heart of a solar system. Three common types of charge controller are ON/Off, pulse width modulation (PWM) and maximum power point tracking (MPPT). MPPT is getting very much po...

Low altitude helicopters are difficult to track due to the limitation of radar horizon, which may cause severe flight hazard. Thus, tracking of helicopter in real time is vital. There are various ways to track low flying helicopter, such as aircraft to ground data link, satellite phone etc. But the Global System for Mobile Communications (GSM) netw...

Energy consumption is promptly increasing in most developing countries since they foster their economic growth. Modern technological electrical devices in day to day activities require high consumption of energy. People's requirement for higher living standard and rapid population growth are among the determinants in the growth of energy consumptio...

Modern industrialized civilization mostly depends on energy in the form of electricity. It is going to refractory to produce huge amount of energy. Since the population is rising, the environment is going unbalance by pollution, global warming and different kinds of deregulation of energy usage and wastage. Speed breaker is a newest source of techn...

For successful GNSS transmission, determination of precise positioning is very important. For better accuracy, two very important concerns are resolving the ambiguities and then improving the precise point positioning algorithm with proper modification. Ambiguities have to be resolved because wrong integer ambiguity estimation may lead us to a fixe...

Energy is one of the primary needs for survival of all organisms in the universe. Everything what happens in the surrounding is the expression of flow of energy in one form to another form. In last few decades,energy demand has increased significantly due to the industrialization and increasing standard of living of the human being. But correspondi...

Economic growth of a country is directly linked to energy growth of the country. Bangladesh despite having the enormous energy resources is facing acute shortage of Electricity. This paper reviews the renewable energy scenario of Bangladesh and extrapolates the future developments keeping in view the consumption, production and supply of power. Mos...

The technique of adaptive modulation adjusts constellation points for Quadrature Amplitude Modulation (QAM) depending on channel conditions. Standard modulation schemes are not considered a good candidate for adaptive modulation due to inherent power inefficiency. In this paper, we propose an optimum constellation for transmission of even bits. Thi...

Accurate positioning of objects is important for navigation applications which gives rise to many interesting and challenging mathematical problems. These problems involve the relationship between positioning accuracy and satellite geometry in accordance to the user's position. Dilution of precision is an indicator of satellite geometry for constel...

In order to meet the future electricity demand without harming the environment, it is necessary to focus more on renewable energy and unconventional sources for electricity generation. The utilization of waste energy can also be helpful for reducing dependence on conventional sources for electricity generation. In this paper, the electricity genera...

Electricity generation is the heart of power system and alternator is widely used for electricity generation. Therefore the protection of alternator is very important for smooth operation of overall power system network. The fault detection and isolation of the faulty section or apparatus from the system is done by using protective devices like fus...

In the field of Satellite navigation, high precision and fast output is always desired. With the prevailing Global Navigation Satellite System (GNSS) formation the drawbacks doesn't allow the output to be completely accurate. So the integration of the existent GNSS systems to have a better performance is inevitable. Present US GPS System and upcomi...

Space-based navigation was not only the first method of long-distance navigation but is the most advanced today. It proved superior to any other guidance system as it is all weather, immune to precipitation static and propagates predictably through the atmosphere. GPS (Global Positioning System), GLONASS (Global Navigation Satellite System), Galile...

Pulse compression technique is usually used in RADAR system in order to raise the signal to noise ratio (SNR) improving the target detection and range resolution Because of masking of small targets by the side lobes of large nearby targets, a problem may arise in pulse compression technique. This paper has proposed a technique to suppress the side...

Phased array antennas are generally used for the inherent flexibility to steer the beam electronically and also the need for specialized multi-function radar systems. In the antenna arrays the side lobe level is main problem which causes the wastage of energy. In this paper a different windowing techniques are used to suppress the side-lobes in lin...

Dilution of precision is one of the most important parameter to consider for satellite navigation. With the existent full operational US operated GPS system the position can be calculated anywhere in the world. The upcoming European Galileo system is also a strong contender for the efficient calculation of position determination. Comparing both the...

Global navigation satellite systems (GNSS) is the collective term for those navigation systems that provide the user with a three-dimensional positioning solution by passive ranging using radio signals transmitted by satellites. The most well known is the Navigation by Satellite Ranging and Timing (NAVSTAR) Global Positioning System (GPS). It is th...

There are several types of models exist for microwave MESFET equivalent circuit. These modeling techniques use different mathematical models to describe the same MESFET and give almost similar results. However, there are some differences in the outputs when compared to the experimental measurements. In this paper, two of these dominant theoretical...

The statistical impact of Coherent and Incoherent crosstalk contributions in a proposed Grouped Share-Per-Wavelength and an Ungrouped Share-Per-Node L-WIXC configuration due to different group size, optical propagation delay differences, bit duration etc. is compared both theoretically and analytically. Considering coherent and incoherent crosstalk...

For a more precise detection of an object by radar, it is important to understand the significance of RCS prediction. Accurate prediction of RCS is critical in order to design and develop robust discrimination algorithms. This paper proposes the significance of RCS in radar performance by demonstrating the SNR performance of radar for some particul...

A theoretical analysis is presented to evaluate the impact of fiber chromatic dispersion on the bit error rate (BER) performance of a two dimensional wavelength hopping time spreading optical CDMA system. A bipolar-unipolar coding scheme has been considered for 7 chip m-sequence and 31 and 127 chip Gold sequence considering a standard single mode f...

Performance analysis is carried out to evaluate the bit error rate (BER) performance limitation of a WDM transmission system imposed by crosstalk due to optical cross-connect (OXC). Power penalty evaluated at a BER of 10^-9 shows that there is a significant impact of crosstalk on the number of wavelengths that can be connected to the OXC. Penalty i...