A direct sequence - code division multiple access/differential phase-shift keying (DS-CDMA/DPSK) modem design
Ha, Tri T.
Robertson, R. Clark
MetadataShow full item record
The development of a differential phase-shift keying (DPSK), direct sequence, spread spectrum modem is conducted for the purpose of creating a prototype design to be implemented in a multi-user environment. In this design, a maximal length sequence of 31 chips is used to spread the information data. The multi-user performance analysis is performed by using Bit Error Rate (BER) test equipment (1645 Hewlett Packard data error analyzer). A multi-user interference cancellation circuit for two users is introduced, and measurements are performed to show its effectiveness. The design itself encompasses the selection of components and demonstrates that the preliminary operational characteristics of a spread spectrum DPSK modem scheme for CDMA application can be achieved
Showing items related by title, author, creator and subject.
Bess, Philip K. (Monterey, California. Naval Postgraduate School, 1994-06);This thesis is part of an ongoing Naval Postgraduate School research project to develop unmanned aerial vehicles (UAVs) using current off the shelf (COTS) technology. This thesis specifically evaluated a spread spectrum ...
Code division multiple access local area network communications employing fiber optic signal processing techniques Legge, Bruce A. (Monterey, California. Naval Postgraduate School, 1993-09);This thesis investigated the feasibility of implementing a code- division multiple-access (CDMA) local area network (LAN) employing all-optical signal processing. A two-user unidirectional data link was built and successfully ...
Sakoda, Daniel (Monterey, California: Naval Postgraduate School., 1998);The Petite Amateur Navy Satellite (PANSAT) was successfully launched aboard the STS- 95 Discovery Shuttle as part of the third International Extreme Ultraviolet Hitchhiker (IEH-3), and placed into a circular, low-Earth ...