Linear chirp spectrum

1. What is a linear chirp signal?
2. What is LFM chirp?
3. What is a chirp waveform?
4. How does chirp spread spectrum work?

What is a linear chirp signal?

Chirp modulation

This type of modulation employs sinusoidal waveforms whose instantaneous frequency increases or decreases linearly over time. These waveforms are commonly referred to as linear chirps or simply chirps.

What is LFM chirp?

LFM Chirp Waveform. The linear chirp signal, or LFM signal, is widely used in sonar and radar systems [20]. A linear chirp is a sig- nal, in which the frequency linearly increases (up-chirp) or decreases (down-chirp) with time.

What is a chirp waveform?

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 chirp spread spectrum work?

For wireless communication, chirp pulses are dispatched from a transceiver to a receiver, or amongst transceivers that can both transmit and receive communications with one or more devices at the same time. Receiving devices analyze the patterns of incoming pulses and translate them into data.