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Dr. Ahmed Bassyouni

 

RF Radar & GNC

Systems Consultant

Recent Papers and Presentations
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Hot Paper:

A New 4d Radar Using Entangled Photonic Beam

(PDF)

Keywords: Radar theory, Quantum Entanglement and Photonics

Abstract: This paper develops a new radar system based on the concept of quantum entanglement property termed by Albert Einstein as a spooky action at a distance.  The predicted Entangled Photonic Radar (EPR) System employs the non-classic strong correlation of the quantum states of two entangled photonic beams over radar range. Here, a block diagram of the EPR system is presented, which includes transmitted signal beam and idler entangled photonic beams generator. The signal beam is transmitted via the antenna towards the target and the idler beam is detected directly into the idler detector array that carries the quantum states changes of the radar signal beam simultaneously before the echo arrival. Multiplying the speed of light with the duration time from the moment of transmitting the entangled photonic beam signal to the moment of detecting idler changing will result the target range accurately.  The paper presents the concept of analyzing the idler beam changes with advanced photonic detectors with processing algorithm to initially extract the target information of range, azimuth, elevation, and speed.     The returned signal from the target is detected by the signal detector array. The output information of idler and signal detectors are applied to the coincidence estimator is processed to characterize and extract target parameters, visualizing clear image. The EPR system diagrams and analytical method are presented. The developed efficient detection devices for different quantum states may lead to a significant radar resolution in displaying the target image and location as soon as the beam impinges the target. This system will overcome many of drawbacks of the classic radars.

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Overview on Receiver RF Definitions

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Keywords: Receiver RF Definitions, Receiver Architectures, Access Methods and Modulation Schemes, Receiver Building Blocks, Receiver Sensitivity, Receiver Nonlinear Performance, Receiver Design Trade-Offs

Abstract: This technical brief provides an overview of communication receiver sensitivity. One of the most important parameters in determining the overall performance of a communication system, receiver sensitivity translates directly into communication distance and reliability. A few receiver architectures can offer dependable communication at low cost, if proper design procedures and trade-offs are implemented. RF amplifiers, mixers, and filters are common circuit building blocks for every architecture. System performance is tied to each individual block comprising the receiver. Each circuit generates noise that degrades reception of the desired signal. Understanding noise sources and the methods of minimizing degradation allows optimal design trade-offs for a given cost. Circuit nonlinearity causes undesired signals to hinder the reception of desired signals. A low-noise system design typically does not produce the best linearity, and high linearity typically produces more noise. A thorough understanding of the receiver RF environment can help your design achieve the proper specifications for optimal noise and linearity.

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A Mobile 4D Imaging Radar System Network for Maximum Land and Maritime Border Security

(PDF)

Keywords: Inverse Synthetic Aperture Radar (ISAR), Radar Imaging, and Imaging Fusion Process

Abstract: This paper presents a pioneering research work on modeling and implementation of mobile networked 4D Imaging Radar System as an optimal solution aimed to maximize the security of land and maritime borders. While detection limits and recognition capabilities have progressed in modern border surveillance systems, those systems still suffer from the inability to firmly identify potential threats that can penetrate land or maritime borders. The proposed radar system can significantly outperform classical radars jointed to cameras because of its ability to positively identify distant targets, sending clear real-time images across microwave channels or fiber-optic lines to command and control centers. The paper presents the functional block diagram of the 4D imaging radar, formulating its radar range accuracy, speed, and azimuth accuracy equations for moving targets. An adaptive signal processing technique for received radar signals is proposed to construct real-time video that accurately identifies moving targets regardless of adverse weather conditions over greater ranges that typically degrade the performance of current optical and thermal cameras.

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Mobile Adaptive Digital Array Radar (MADAR) System

(PDF)

Keywords: Phased Array Antenna, Beam Forming, Solid state gallium nitride, and RF Digital Receiver

Abstract: This paper presents an innovative architecture for a feasible Mobile Adaptive Digital Array Radar (MADAR) system that could be utilized for detection and tracking different sizes of short range targets from fighter aircrafts to UAV, rockets, and cannons projectiles. The author proposed the MADAR system in order to achieve a high performance level over the current radar versions in the field such as EQ-36. The proposed MADAR is an S-band phased array radar system utilizing the gallium nitride solid state cavity transceivers, microstrip radiators elements, Adaptive Beam Forming (ABF), and sophisticated digital receiver algorithms. The innovative ideas applied into the proposed MADAR will achieve improved performance parameters such as receiver dynamic range, detection range, resolution range, beam pattern, beam pointing accuracy, higher probability of small targets detection in heavy clutters, lower rate of false alarms, lower clutter to signal to noise ratio, lower side lobes level, and lighter weight aperture array. The MADAR system eventually will provide the capability to detect, classify, track and determine the location of enemy indirect fire, such as mortars, artillery and rockets in either 90-degree or 360-degree modes.

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A New Radar System Based On Entangled Photonic Beam

(PDF)

Keywords: Radar theory, Quantum Entanglement, and Photonics

Abstract: This paper develops a new radar system based on the concept of quantum entanglement property termed by Albert Einstein as a spooky action at a distance. The predicted Entangled Photonic Radar (EPR) System employs the non-classic strong correlation of the quantum states of two entangled photonic beams over radar range. Here, a block diagram of the EPR system is presented, which includes high power signal and idler entangled photonic beams generator. The signal beam is transmitted via the antenna towards the target and the idler beam is detected directly into the idler detector array that carries the quantum states changes of the radar signal beam simultaneously before the echo arrival. The returned signal from the target is detected by the signal detector array. The output information of idler and signal detectors are applied to the coincidence estimator to be processed to characterize the target parameters and its clear image. The EPR system diagrams and analytical method are presented. The developed efficient detection devices for different quantum states may lead to a significant radar resolution in displaying the target image and location as soon as the beam impinges the target. This system will overcome many of drawbacks of the classic radars.

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Future of Phased Array Radar Systems

(PDF)

Keywords: Radar Theory, Phased Array Radars, Theory of Entangled Photons, and Einstein Spooky Action

The basic concept of the electronic warfare is to deceive the enemy. Deception is the basic
concept of the electronic attack in order to mislead the enemy perceptions that lead to degrade
the accuracy of his intelligence. On the other hand the electronic warfare provides the protection
to our country from enemy electronic attack, for example control and telemetry communications,
such as signals sent from an aircraft to a missile it has just launched, must be protected against
jamming and modification. To achieve these goals, electronic weapon systems such as radar,
infrared and sonar, sensors, communications links jammers, and lasers are utilized.

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Modern Electronic Warfare

(PDF)

(In progress)

The basic concept of the electronic warfare is to deceive the enemy. Deception is the basic
concept of the electronic attack in order to mislead the enemy perceptions that lead to degrade
the accuracy of his intelligence. On the other hand the electronic warfare provides the protection
to our country from enemy electronic attack, for example control and telemetry communications,
such as signals sent from an aircraft to a missile it has just launched, must be protected against
jamming and modification. To achieve these goals, electronic weapon systems such as radar,
infrared and sonar, sensors, communications links jammers, and lasers are utilized.

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Electronic Warfare Advanced Technology

(PDF)

Presentation

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Electronic Warfare and Counter-Measures: Short Note on Electronic Warfare

(PDF)

Presentation

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IMU & GPS Sensors Integrated to Antenna Drive Control Loop

(PDF)

Presentation

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Matched Filter

(PDF)

Presentation

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RCM Model

(PDF)

Presentation

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On-chip RF Transceiver Circuits

(PDF)

Presentation

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