  The paper describes combinatorial synthesis approach with interval multset
estimates of system elements for modeling, analysis, design, and improvement of
a modular telemetry system. Morphological (modular) system design and
improvement are considered as composition of the telemetry system elements
(components) configuration. The solving process is based on Hierarchical
Morphological Multicriteria Design (HMMD): (i) multicriteria selection of
alternatives for system components, (ii) synthesis of the selected alternatives
into a resultant combination (while taking into account quality of the
alternatives above and their compatibility). Interval multiset estimates are
used for assessment of design alternatives for telemetry system elements. Two
additional systems problems are examined: (a) improvement of the obtained
solutions, (b) aggregation of the obtained solutions into a resultant system
configuration. The improvement and aggregation processes are based on multiple
choice problem with interval multiset estimates. Numerical examples for an
on-board telemetry subsystem illustrate the design and improvement processes.
