A Study of Multiple Access Waveforms with Acoustic Surface Wave Matched Filters
H.J. Bush · Defense Technical Information Center (DTIC) · 1972
The report describes a study into synchronization problems of various spread spectrum waveforms for direct mode, multiple access systems. Particular attention is paid to user mutual interference and how this interference influences the choice of the waveform. Computer generated cross-correlation properties of the 18 basic 127 chip m-sequences are given in simulating a pure code division system. The basic pseudo-noise sequence is implemented by acoustic surface wave matched filters. The performance of these matched filters under various interference conditions (including multipath) is given.