Signal Processing incorporates all aspects of the theory and practice of signal processing (analogue and digital). It features original research work, tutorial and review articles, and accounts of practical developments. It is intended for a rapid dissemination of knowledge and experience to engineers and scientists working in the research, development or practical application of signal processing.Subject areas covered by the journal include: Signal Theory; Stochastic Processes; Detection and Estimation; Spectral Analysis; Filtering; Signal Processing Systems; Software Developments; Image Processing; Pattern Recognition; Optical Signal Processing; Digital Signal Processing; Multi-dimensional Signal Processing; Communication Signal Processing; Biomedical Signal Processing; Geophysical and Astrophysical Signal Processing; Earth Resources Signal Processing; Acoustic and Vibration Signal Processing; Data Processing; Remote Sensing; Signal Processing Technology; Speech Processing; Radar Signal Processing; Sonar Signal Processing; Industrial Applications; New Applications.Fast CommunicationsSignal Processing is one of the key components of modern communications. The pace at which these fields are growing has created the need for rapid dissemination of critical research results. Fast Communications fulfils this requirement. Manuscripts are submitted, reviewed and published electronically; appearing later in paper form in the journal.