Application of Memory-Based Digital Filtering to High-Speed Digital Radio
C. Siller, W. Debus · AT&T Technical Journal · 1990
Memory-based digital filtering is considered in the context of high-speed (greater than 15 Mbaud) radio systems, where it finds application as an accurate and rapid approach to synthesizing band-limited data signals for transmission over Nyquist channels. Following brief comments regarding the basic circuit architecture, feasibility models for 16- and 64-QAM 90-Mb/s operation are experimentally evaluated. Performance is found to be consistent with digital radio objectives and superior to sophisticated analog designs.