Author Insights with Uri Vered

What prompted you to write your book?

In my EMC/RFI career I have conducted a multitude of inter-system interference studies and analyses, mainly for defense customers. One of my major difficulties was that available RFI calculation techniques and equations in the literature didn’t cover all my needs. Thus, I had to develop them by myself, and I summarized my deeds in my notes. Within the years I added summaries of known equations as well and started conducting seminars. Friends of mine urged me to publish my experience and notes in a professional textbook.

Can you give us a “behind the scenes” look at your writing process?

Turning my notes into a coherent text book wasn’t easy, as the process was all but “cut and paste” my notes. I wanted to create a text which is suitable for self-learning, organized in a rational order of chapters, i.e., later chapters are based on knowledge gained in previous ones.

How did you get into your field initially?

I have spent many years in the field of Electronic Warfare prior to dealing with RFI. However, one profession led to the other. From the mission point of view there is a fundamental difference between EW and RFI. While my task as EW engineer was to optimize the way one signal (mine) interferes with the other (the opponent’s), my task as RFI engineer was to minimize interference between signals. However, from the technical point of view, i.e., physical phenomena and mathematical equations, there is a lot in common to both fields.

Is there any additional information you’d like to talk about?

Some of the examples of original calculation techniques and equations are:

–           Antenna gain in intercardinal angles, as this is the common case between interfering and interfered antennas, which are directed toward any possible direction, whereas 3D antenna data is not always available.

–          The GETIM – Generic Terrain Influenced path loss Model, for estimating the required separation between interferer and interfered, when their locations are unknown.

–          Probability of frequency difference between non-correlated systems.

–          Probability of pulse interference.

 

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