AGC DSP AGC DSP Professor A G Constantinides© Acoustic Echo Canceller.

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Presentation transcript:

AGC DSP AGC DSP Professor A G Constantinides© Acoustic Echo Canceller

AGC DSP AGC DSP Professor A G Constantinides© Acoustic Echo

AGC DSP AGC DSP Professor A G Constantinides© Blind Equalisation

AGC DSP AGC DSP Professor A G Constantinides© Network Equalisation

AGC DSP AGC DSP Professor A G Constantinides© Local Loop Equalisation

AGC DSP AGC DSP Professor A G Constantinides© Hybrid equalisation

AGC DSP AGC DSP Professor A G Constantinides© Mobile network

AGC DSP AGC DSP Professor A G Constantinides© Mobile equalisation

AGC DSP AGC DSP Professor A G Constantinides© Satellite Systems

AGC DSP AGC DSP Professor A G Constantinides© Multi-phase Flows A mixture of fluids in a pipe (eg in oil industry) Water Pipeline Gas Oil Flow of Oil+Water+Gas+Others Sensor 1Sensor 2 L

AGC DSP AGC DSP Professor A G Constantinides© Multi-phase Flows 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

AGC DSP AGC DSP Professor A G Constantinides© Adaptive Noise Canceller To cancel broadband noise Algorithm delay signal_+noise Output: Sine

AGC DSP AGC DSP Professor A G Constantinides© Adaptive Line Enhancer To find a low level sinusoid in noise Algorithm delay sine_+noise Weights: w FFT Output

AGC DSP AGC DSP Professor A G Constantinides© Medicine Mother Adaptive Filter Foetus

AGC DSP AGC DSP Professor A G Constantinides© Beamformers, Conventional The coherent summing of outputs of many spatially sensors is known as beamforming They are essentially spatial filters Extensively used in Seismology Underwater acoustics Biomedical engineering Industrial testing Telecommunications

AGC DSP AGC DSP Professor A G Constantinides© Beamformers....