A real time analysis/Display system for nonstationary coastal processes

An all digital, real time, signal processing system designed for analyzing nonstationary processes is described. The system, capable of processing up to four signals simultaneously, is used primarily for determining time-varying spectra and correlation functions. One of the unique features of this transportable system is the programmable pseudo-color 3D display subsystem. The variable upper frequency range extends from 0.005 Hz. to 20 KHz. The architecture incorporates an array processor and a small microprocessor functioning as the system executive.