Recent content by Dint

Jacobs section is going to be harder than Eds, in order to do well on Jacobs we need to know the formulas for each modulation method... Then the last question of each exam question I just can't do. :<

that's delta... When you find the Fourier transform of the convolution of two functions... eg. s(t) * \delta(t) The answer is the multiplication of each functions Fourier transform. The Fourier transform of a delta function (that funny symbol), is 1. So it's actually just the...

Yeah I'm not really sure of your question, I just re-read it and I don't know if I really answered it. Draw your function on a page, if you fold it so the positive axis flips onto the negative axis and they perfectly line up, the function is even :P That's probably the easiest way I can...

An even function is when f(x) = f(-x) In other words, it is symmetrical about the Y-axis (if you flip it over the Y axis, it is identical. An odd function is when -f(x) = f(-x) In other words when the function is symmetrical about the X-axis, once flipped about the Y-axis. Hope this helped.

I've figured out this problem. What I was actually getting confused with was that when it asked for no cosine/sin terms, it was actually referring to an/bn respectively. My confusion came when I integrated sin and got a cos term, thinking this meant that there were cosine terms. When really...

In the drawing that I did, was I wrong to say the amplitude of that is 1? Is the amplitude actually .5? If it's a square wave as I drew it, does that not mean that It's pk-pk amplitude is 1? I'm getting really confused with the amplitude now. I've always understood amplitudes using sin and...

This is also my first time using latex, so if I stuffed anything up I'm sorry.

Hello, I am attempting a past exam paper in preparation for an upcoming exam. The past exam papers do not come with answers and I'm a little unsure as to whether I'm doing all of the questions correctly and would like some feedback if I'm going wrong somewhere. Any help is greatly appreciated...