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Yearly Archives: 2022

Model-Based Systems Engineering (MBSE) for Satellites and Aerospace

A system is defined by NASA as  a construct or collection of different elements that together produce results not obtainable by the elements alone. Systems Engineering (SE) is defined as: The process by which a customer’s needs are satisfied through the conceptualization, design, modeling, testing, implementation, and operation of a …

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Agile Engineering is the Future of Aerospace Design and Production

In the middle of the 1990s, the common way of developing software was a heavyweight software development methodology, comprising of complete requirements documentation of design and architecture, followed by coding, integration, and finally testing based on a detailed test plan before an application was deemed production-ready. This traditional and sequential life …

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Device drivers provide software interface to hardware devices

In computing, a device driver is a computer program that operates or controls a particular type of device that is attached to a computer or automaton. The main purpose of device drivers is to provide abstraction by acting as a translator between a hardware device and the applications or operating …

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Satellite constellation Modeling & Simulation for Optimization

Modelling is the process of representing a model (e.g., physical, mathematical, or logical representation of a system, entity, phenomenon, or process) which includes its construction and working. This model is similar to a real system, which helps the analyst predict the effect of changes to the system. Simulation of a …

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System Architecture to Software Archtecture

All systems are designed to achieve some human purpose: The web application Facebook connects people in a social network, an aircraft transports people long distances. A Boeing spokesman once quipped, “We view a 777 airliner as a collection of parts flying in close proximity.”   The job of a systems …

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Phased Array Antennas for LEO satellite Constellations

Satellite communication systems consist of two main segments, the space segment and the earth or ground station. The ground station system coordinates the communication process with satellites in space. A communications satellite is an artificial satellite that relays and amplifies radio telecommunications signals via a transponder; it creates a communication …

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Multiple access and routing for LEO satellite constellations

Multiple access to a particular repeater channel (transponder) implies prior multiple access to the satellite repeater. Each satellite repeater channel (transponder) amplifies every carrier whose spectrum falls within its passband at a time when the channel is in an operational state. The resource offered by each channel can thus be …

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Digital Modulation Schemes for Satellite Communications

Communications via satellites have two unique characteristics: the ability to cover the globe with a flexibility that cannot be duplicated with terrestrial links, and the availability of large bandwidth for intercontinental communications. In satellite communication, the modulated carrier carrying information is transmitted through space as a radio wave to a …

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Advanced Modulation Schemes for LEO Satellite Constellations

Communications via satellites have two unique characteristics: the ability to cover the globe with a flexibility that cannot be duplicated with terrestrial links, and the availability of large bandwidth for intercontinental communications.   Modulation is the process of converting data or baseband signals into electrical signals optimized for transmission. Modulation, …

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Human/machine hybrids or cyborgs evolving to biocyborgs

The synthetic biology is an engineering approach to biology. The aim is to re-design of existing, natural biological systems for useful purposes as well as design and construction of new biological parts, devices, and systems.   An Organism’s sensing, metabolic, and decision-making capabilities are all encoded within their genome as …

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