Howtosignalprocessing
- What is pulse compression gain?
- Does pulse compression increase SNR?
- What are the advantages of pulse compression other than greater range?
- What is lfm modulation?
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.
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 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.
What is lfm modulation?
A Linear Frequency Modulation (LFM) waveform is the most popular type of pulse compression and has been adopted for many radar systems due to its ease of hardware implementation and good range resolution.
