Saturday, September 17, 2011

“To be, or not to be?”


Introduction
Life equals to the series of choices you make and every choice has its own story [1]. A proposed model of life is a network of roads intercepting each other. Crossroads represent nothing else but possible choices and life is one of the possible paths in this chaotic network. We all have the same starting point, and the same finish line [2]. Some people have pole position [3], but this is the race you do not want to finish first. People’s paths cross, sometimes they continue their journeys together, sometimes they split.

The fundamental concept of the model is - you cannot stop moving in the crossroads domain (you cannot stop making choices). It makes them really important then. Right?

One of the most famous choices someone ever faced is the question: “To be, or not to be?” I bet you used this sentence many times too. But what is the answer?

Solution

In theory of Communication Systems the concept of amplitude modulation [4] is widely used (e.g. in AM radio stations). If we have a base-band signal whose bandwidth is B (for voice it is 3.4kHz) and we modulate it for radio show (operating frequency is around 1MHz) what is the bandwidth of a modulated signal? 2B or not 2B?



The Figure above shows that the correct answer is 2B.

Conclusion
To be, that is the answer! It is your journey, choose your path and enjoy it. I know I will.

Acknowledgments
Thank you Lindsey for the conversations that led to the model.
Thank you prof. Kirsch for the joke during the lecture that gave me inspiration for the post.

Literature
[1] name of the blog
[3] expression used in many races (i.e. Formula One)

Monday, August 22, 2011

Theory of FORECAST

Half an hour before leaving to the airport, probably the last words written in Serbia for the period to come. I dedicate this post to all my friends and colleagues from School of Electrical Engineering, Belgrade.