International Telemetering Conference Proceedings / October 28-31, 1996 / Town and Country Hotel and Convention Center, San Diego, California / It is always desirable to transmit several data signals simultaneously. This paper discusses how one transmitter can transmit several data signals to several receivers at the same time in a Point to Multipoint communication system. Two novel schemes are proposed. One is communication with Multiple Phase Shift Keying(MPSK,e.g.8PSK),another is communication with Direct-Sequence Spread-Spectrum Multiple-Access(DS/SSMA). Their models are presented and their operations are illustrated. It is proved theoretically that the communication properties of DS/SSMA are better than those of another.

International Telemetering Conference Proceedings / October 23-26, 2000 / Town & Country Hotel and Conference Center, San Diego, California / Software radio is a new concept emerging in military communication and commercial wireless communication systems. Its kernel idea is to give a support with rapid building the flexible, modular, multiband and multimode wireless systems. This paper aims at programmable detection module in software radio application. It uses adaptive software to realize the detection function, this will greatly enhance the wireless receivers’ flexibility and intelligent process. From the simulation results of MPSK adaptive detection software, it can be concluded that adaptive software makes the system easy to realize detection function for various applications.