The Space Microelectronics book set is a comprehensive focuses on the study of modern spacecraft, including their classification, packaging and protection, design versions, launch failure and accident analysis, and the main requirements of electronic components used as well as details about the integrated circuit design for space applications. Read on for a thorough introduction to …
Information Based Sensor Management (IBSM) was briefly described in an earlier posting, but the question arises as to what are the criteria which led to this inevitable approach to sensor management. That is, how do you architect the noncommensurate elements of IBSM while satisfying competing mission goals. We present here a brief synopsis of an …
Recently, I have seen many more discussions about cybersecurity breaches. Could this be down to many more people working from home? Or is expected due to the increase of technology in our day-to-day lives? Or both? This Forbes article from 2018 – https://www.forbes.com/sites/sallypercy/2018/11/27/the-top-three-business-priorities-for-leaders-over-the-next-three-years/?sh=26358f834ec9 – said that companies would be making cybersecurity and big data one …
Once in a while we find ourselves writing about topics which are relatively new to us. My comfort zone as an author is RF engineering but suddenly it seems that free space optical wireless is becoming important in space and terrestrial networks. Counter intuitively this became obvious when looking at the economics of subsea fibre …
The satellite communication landscape is evolving. The traditional services are not sustaining the growth that the space industry is used to, and new services are showing new promises. Broadband access is such an area encompassing two main applications, namely fixed broadband and mobile broadband. In these days where economics are becoming the deciding factor in …
This book is the definitive resource for in-band full-duplex (IBFD) wireless systems. IBFD technology allows devices to transmit and receive signals on the same frequency at the same time, but has intentionally been avoided in a wide range of traditional systems. This is due to the significant self-interference that is generated by a transmitter co-located …
Sometimes as engineers we get depressed by the marketing hype applied to what are perceived as new technology opportunities. Smart Cities are an exemplar of this problem. A local satirical journalist used to point out that the easiest way to uncover absurdity was to proposition the opposite, for example, ‘Dumb Cities, the future?’ But there …
When Traces Melt: Figures 1 and 2 (Note 1) illustrate traces on two different boards. Each figure illustrates the trace at the moment it fuses (melts) due to a significant current overload. The fusing mechanisms are clearly different. So what was different? Here is the first hint. Assume there is a current that is just …
The Long Read Every so often we find ourselves embarking on a small piece of research that explodes into a major project. This happened to me this month after a chance encounter with a neighbour who is a senior strategist for one of the oil majors. We were talking about the electric car that sits …
Waves, either electromagnetic (EM) or acoustic (AC) interact with objects and scatter. The addition of incident and scattered fields form the total fields. Scattered fields include (but not limited with) reflections, refractions, and diffractions. The Handbook of Next Generation Emergency Services by Barbara Kemp and Bart Lovett is about diffraction modeling and simulation. Scattering has gained …
