Photoacoustics Waveform Design for Optimal Signal to Noise Ratio

Time-frequency analysis in waveform engineering can be applied to many detection and imaging systems, such as radar, sonar, ultrasound improve their Signal-to-Noise Ratio (SNR). Recently, photoacoustic systems have attracted researchers’ attention. However, the SNR optimization problem for has not been fully addressed. In this paper, one-dimensional of response an input with finite duration energy was considered. This paper eigenfunction approach find optimal various absorber profiles. gains via obtained were compared simple square-pulse pulsed sinusoidal waveforms simulations. Results showed that by using waveform, enhanced especially if wave is comparable time profile duration. The achieve 5%–10% higher than square pulses over 100% sinusoids. symmetry between frequency domains assures similar behavior when temporal durations are too short or long absorber.