Howtosignalprocessing
- What is a chirp frequency?
- What is chirp response?
- How do you calculate chirp signal?
- How does frequency chirping affect bandwidth?
What is a chirp frequency?
What is frequency chirp? A chirp is a signal in which the frequency increases or decreases with time. This picture shows a linear chirp waveform; a sinusoidal wave that increases in frequency linearly over time.
What is chirp response?
The impulse response is an oscillatory burst that starts at a low frequency and changes to a high frequency as time progresses. This is called a chirp signal for a very simple reason: it sounds like the chirp of a bird when played through a speaker.
How do you calculate chirp signal?
Listen to the chirp with a linear frequency movement versus time . The frequency that will be heard is determined by taking the derivative of the quantity 2π(mt+f)t which is the argument of the cosine. If we start with cos(P(t)), the derivative must be divided by 2π to get the frequency in Hertz.
How does frequency chirping affect bandwidth?
As mentioned previously, frequency chirp has an effect of broadening the width of the signal optical spectrum and introducing system performance degradation when the transmission fiber is dispersive.
