Spectral Equalisation: A Signal Processing Technique to Increase Pulse-Echo Signal Bandwidth

The spectral bandwidth of received pulse-echo signals often is far less than the bandwidth originally generated by the transmitter electronics. This decrease in bandwidth may e.g. be caused by attenuation and/or transmitter/receiver characteristics. Processing techniques, such as inverse filtering, aim to restore the original signal bandwidth in order to improve temporal resolution of the pulse-echo data.