Satellite launch delay

Self-configuring Network for Launch Vehicle and Satellite Avionics

Under an Air Force Phase II SBIR contract, Microcosm is developing a self-configuring avionics network, scheduled for test on a sounding rocket in late 2003 or early 2004. This system is extendable to spacecraft avionics and housekeeping functions, enabling true plug-and-play capability.

Reliable Multicasting via Satellite: Delay Considerations

Many different reliable multicast protocols have been proposed and analyzed in the current literature. Since satellites are naturally a broadcast medium, multicast communications have the potential to greatly benefit from their wide-scale deployment. The performance of reliable multicast protocols needs to be studied and become better understood over networks including satellite links. Most of ...

Modified L1 Adaptive Control Design for Satellite FMC Systems with Actuators Time Delay

A modified method for satellite attitude control system in presence of novel actuators is proposed in this paper. The attitude control system is composed of three fluidic momentum controller (FMC) actuators that are used to control Euler angles and their dynamics is considered in satellite attitude equations as well. L1 adaptive control is utilized for satellite three-axial ...

Concurrent design Estimating probable system cost Launch vehicle reliability Small - satellite costs Designing a sensor system

Parametric fault estimation based on H∞ optimization in a satellite launch vehicle

Correct diagnosis under harsh environmental conditions is crucial for space vehicles’ health management systems to avoid possible hazardous situations. Consequently, the diagnosis methods are required to be robust toward these conditions. Design of a parametric fault detector, where the fault estimation is formulated in the so-called standard set-up for H∞ control design problem, is addressed i...