Digital signal processing

During the course of this contract, there have been several major task areas: the development of homomorphic signal processing techniques and their application to the development of a homomorphic vocoder and other signal processing applications; the development and implementation of techniques for enhancement and bandwidth compression of degraded speech; the development and evaluation of techniques for processing of multidimensional signals and the application of these techniques to image processing, and the processing of other multidimensional data sets; and the development of techniques and the implementation and evaluation of systems for speed transformations of speech.