Howtosignalprocessing
Real square-waves have a finite rise and fall time of course and the bandwidth is related to that time. This required bandwidth is approximately 0.35 / Tr where Tr is the rise-time (or fall-time) measured between the 10% to 90% of the square-wave amplitude.
- Why does a square wave have infinite bandwidth?
- How do you calculate bandwidth of a wave?
- What happens to bandwidth when signal is squared?
- What is the formula for a square wave?
Why does a square wave have infinite bandwidth?
Because our ideal square wave has zero rise time, the bandwidth of the signal is going to be infinite.
How do you calculate bandwidth of a wave?
This is known as the bandwidth (BW). In this example the bandwidth would be 10 Hz (70 Hz - 60 Hz). You can predict the bandwidth in this case using the simple formula: BW = 2fm where fm is the frequency of the simple sine wave used to modulate with.
What happens to bandwidth when signal is squared?
Your initial signal has 0 bandwidth, and the result of squaring gives 2ω bandwidth. So that's much more than a factor of n increase by squaring. There is no change in bandwidth with a sinewave signal. What happens is the signal that was at a given frequency is now at twice the frequency.
What is the formula for a square wave?
the square wave and f is its frequency, which are related by the equation f = 1/T.
