Multiple Matched Spatial Filtering with Corresponding Symbols by the Hybrid System

A system for multiple pattern recognition without observing peak autocorrelation signals is described. A multiplexed matched spatial filter is used for multiple operations. The reconstructed peak signals are not directly used for recognition. They are first fed into a frame buffer memory via a CCD camera to be processed by a microcomputer. Unknown inputs are finally recognized by taking a glance at symbols, which are displayed on a CRT screen and are deduced from the peak signals by the microcomputer. The system presents easier recognition for observers who are not expert in matched filtering.