Chain Design Research Articles

Multibeam SS-TDMA design considerations related to the Olympus Specialised Services Payload

The paper discusses some of the particular design problems associated with a multibeam satellite-switched time-domain multiple-access (SS-TDMA) satellite payload. Contiguous beam coverage and frequency reuse between beams are shown to place some important constraints on the antenna performance. The local oscillator, switch matrix and input/output chain designs are dependent on the interbeam switching requirements. These design considerations are referenced to the Olympus Specialised Services Payload, for which a description, performance summary and link budget are presented.

Design of a supermarket chain

This paper describes the application of parts of the Organizational Audit and Analysis Technology for organizational design to a regional supermarket chain organization. Following brief presentation of some background about the retail food business and some organizational features of the chain, the application is described. The described application includes a strategic assessment stage, an organizational audit, the organizational design, implementation planning, and strategic planning.

The design of Markov chains for waveform generation

A linear programming algorithm is described for designing circulant Markov chains which generate random waveforms whose spectral densities have specified poles. These chains can be implemented by random jumping in a fixed table, and have the advantages of speed and simplicity. Possible applications to speech synthesis are discussed.