Howtosignalprocessing
- What is chirp bandwidth?
- What is a chirp frequency?
- How does frequency chirping affect bandwidth?
- What is a chirp in radar?
What is chirp bandwidth?
The chirp bandwidth can be straightforwardly computed as the product of βr times the duration of the pulse, i.e., the chirp rate can be expressed as. (5.74) where Br is the transmitted bandwidth and Tp is the duration of the pulse. A linear instantaneous frequency results in a quadratic phase, i.e., (5.75) π π
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.
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.
What is a chirp in radar?
A chirp radar is one that transmits a swept-frequency signal, receives it from a target, and then delays the signal in such a manner that the return signal is compressed in time to give a short, intense return signal. The swept signal is called the chirp signal.
