Now showing items 1-4 of 4
Applications of Adaptive Time Frequency Representations to Underwater Acoustic Signal Processing
The authors describe the application of an adaptive optimal kernel (AOK) time-frequency representation to the processing of underwater acoustic data. The optimal kernel is a signal-dependent radially Gaussian function. ...
CAPE - VLSI Implementation of a Systolic Processor Array: Architecture, Design and Testing
The SVD is an important matrix decomposition in many real-time signal processing, image processing and robotics applications. Special-purpose processor arrays can achieve significant speed-up over conventioinal architectures ...
Efficient Approximation of Continuous Wavelet Transforms
An efficient method, based on the chirp-z transform, for computing equally spaced time samples of a continuous wavelet transform at arbitrary scale samples is developed. Applications include efficient computation of samples ...
A Radially-Gaussian, Signal-Dependent Time-Frequency Representation
An optimization formulation for designing signal-dependent kernels that are based on radially Gaussian functions is presented. The method is based on optimality criteria and is not ad hoc. The procedure is automatic. The ...