Publications (39)
Time Segmented Beamforming via Dynamic Programming: Theory and Implementation
Manan Mittal, Ryan M. Corey, Diego Cuji +2
In dynamic acoustic environments with time-varying interferers, effective beamforming requires identifying stationary regions over time. The Capon beamformer, a whitened matched fi…
Real-time video streaming in vivo using ultrasound as the communication channel
Zhengchang Kou, Rita J. Miller, Andrew C. Singer +1
The emergence of capsule endoscopy has provided a means of capturing video of the small intestines without having to resort to an invasive procedure involving intubation. However,…
Motion-Tolerant Beamforming with Deformable Microphone Arrays
Ryan M. Corey, Andrew C. Singer
Microphone arrays are usually assumed to have rigid geometries: the microphones may move with respect to the sound field but remain fixed relative to each other. However, many usef…
Transmit Beamforming for High-Rate Underwater Acoustic Communications
Diego A. Cuji, Andrew C. Singer, Milica Stojanovic
Transmit beamforming for underwater acoustic communications is challenging because channel state information must be obtained through feedback and may be noisy or outdated. In this…
Delay-Performance Tradeoffs in Causal Microphone Array Processing
Ryan M. Corey, Naoki Tsuda, Andrew C. Singer
In real-time listening enhancement applications, such as hearing aid signal processing, sounds must be processed with no more than a few milliseconds of delay to sound natural to t…
Online Segmented Recursive Least-Squares for Multipath Doppler Tracking
Jae Won Choi, Girish Chowdhary, Andrew C. Singer +4
Underwater communication signals typically suffer from distortion due to motion-induced Doppler. Especially in shallow water environments, recovering the signal is challenging due…