AGC DSP Acoustic Echo Canceller Professor A G Slides: 16 Download presentation AGC DSP Acoustic Echo Canceller Professor A G Constantinides© AGC DSP Acoustic Echo Professor A G Constantinides© AGC DSP Blind Equalisation Professor A G Constantinides© AGC DSP Network Equalisation Professor A G Constantinides© AGC DSP Local Loop Equalisation Professor A G Constantinides© AGC DSP Hybrid equalisation Professor A G Constantinides© AGC DSP Mobile network Professor A G Constantinides© AGC DSP Mobile equalisation Professor A G Constantinides© AGC DSP Satellite Systems Professor A G Constantinides© AGC Multi-phase Flows DSP n A mixture of fluids in a pipe (eg in oil industry) Pipeline Flow of Oil+Water+Gas+Others Water Gas Sensor 1 L Sensor 2 Professor A G Constantinides© Oil AGC Multi-phase Flows DSP n n n Objective to estimate the Velocity of flow Modelling: At sensor 1 At sensor 2 Where is the noise at that sensor uncorrelated with the signal Professor A G Constantinides© AGC Adaptive Noise Canceller DSP n To cancel broadband noise signal_+noise delay Output: Sine Algorithm Professor A G Constantinides© AGC Adaptive Line Enhancer DSP n To find a low level sinusoid in noise sine_+noise delay Weights: w FFT Output Professor A G Constantinides© Algorithm AGC DSP Medicine Mother Adaptive Filter Foetus Professor A G Constantinides© AGC Beamformers, Conventional DSP n n n The coherent summing of outputs of many spatially sensors is known as beamforming They are essentially spatial filters Extensively used in n n Seismology Underwater acoustics Biomedical engineering Industrial testing Telecommunications Professor A G Constantinides© AGC DSP Beamformers . . Professor A G Constantinides©