Question : What is a sine wave??
How do you produce one??
If it is by alternating current how do you produce alternating current and what is alternating current??
What is direct current??
How do you get sound on a radio out of these sine waves??
What is amplitude modulation, frequency modulation, pulse modulation what are the advantages and disadvantages of each?
PLEASE ANSWER ALL QUESTIONS HAPPY NEW YEAR AND THANKS
Answer : Try looking up BASIC ELECTRICITY AND ELECTRONICS.
You should be able to find something on the web, or go to an electronics store like Radio Shack and get a book on the basics.
Question : APPLICATIONS FOR AMPLITUDE SHIFT KEYING TECHNIQUES IN REMOTE CONTROL
Answer : Its easy to modulatedemodulate and can take little bandwidth when compared to FSK. Thats all I can think of right now, I usually focus on its disadvantages.
Question : I currently have to take a class in communication engineering, however I am stuck big time in Pulse Amplitude Modulation, Pulse Width Modulation, and Pulse Position Modulation.
I tried to search them up over the internet, however I am a very, very new newbie so I have no idea what it is trying to say.
can anyone help by explaining it in pure, simple human dialect? (I am very bad at math so please avoid the mathematical jibberish if possible)
And does anyone know if there are any animati..
Answer : Engineering is all about math. If you dont like math you will not like engineering.
Pulse width modulation is possibly the simplest to explain.
Let us say that we need to design a speedometter for a bike.
what we will do is place a small magnet on one of the spokes of the bike. we then place a sensor on the frame.
Every time the magnet on the wheel rotates past the sensor, the sensor will generate a pulse (lets say that this pulse is a square wave 0v to 5v for a duration of 10msec then 5v to 0v)
If we where to look at the pulses on an oscilloscope, we would see the pulse train. We can measure the period between pulses and retrieve a given RPM.
As the wheel spins faster the period (Duty cycle) between pulses will decrease, or we can say that it is higher frequency.
We have just used pulse width modulation to encode RPM of the bike.