Howtosignalprocessing
- Does pulse compression increase SNR?
- What is pulse compression gain?
- What is the process of compression of a chirped pulse?
- What are the advantages of pulse compression other than greater range?
Does pulse compression increase SNR?
Pulse compression is used in radar and sonar systems to improve signal-to-noise ratio (SNR) and range resolution by shortening the duration of echoes.
What is pulse compression gain?
Pulse compression is a signal processing technique commonly used by radar, sonar and echography to increase the range resolution as well as the signal to noise ratio. This is achieved by modulating the transmitted pulse and then correlating the received signal with the transmitted pulse.
What is the process of compression of a chirped pulse?
The chirp pulse compression process transforms a long duration frequency-coded pulse into a narrow pulse of greatly increased amplitude. It is a technique used in radar and sonar systems because it is a method whereby a narrow pulse with high peak power can be derived from a long duration pulse with low peak power.
What are the advantages of pulse compression other than greater range?
With the help of pulse compression, a relatively long transmission pulse with comparatively low peak power can achieve a better, longer range than the basic radar equation would suggest. This is because pulse compression can still detect echo signals that have already disappeared in the noise before pulse compression.
