basic inter satellite link (ISL) routing algorithms. LeoSim also includes a user graphical interface. Dynamic constellations, handover management and elaborate end-to-end routing algorithms are to be implemented in the near future. Its design approach, as well as the simulation engine, has been transported into GaliLEO. The aim of this work is to create a tool that can simulate the transmission...

although the LEO constellation has dynamic satellite network topology, the topology changes are predictable and periodic. Based on the characteristics above, a new simple change adaptive routing algorithm (SCARA) is proposed for satellite IP networks. SCARA uses simple rules to decide the next hop. The rules are 1) using only two possible directions to reduce the routing path; 2) assigning high...

A robot satellite with dual-manipulators is one of the choices to operate payload in orbit, for example, to capture or deorbit damaged satellites. We have constructed a ground experiment simulator system including two 7-degree-of-freedom (DOF) manipulators as a chaser satellite model and floating testbeds on a flat floor as target satellite models. This system is a tele-operation ground experim...

AThis paper introduces the development of a ground experiment testbed for synthetic mission demonstration of small satellites in National University of Defense Technology (NUDT). This testbed consists of five parts: test platform, small satellite simulator, monitoring and control system, data collecting and simulation system, and displaying system. It can simulate small satellite motion with tw...

The performance of the Multicast Dissemination Protocol (MDP) in a simulated satellite channel is investigated. The environment that is modeled is that to be expected in a small satellite communications environment including channel errors and link interruptions. The satellite link is simulated with a channel environment simulator. The performance of MDP is compared with file transfer protocol ...

The performance of the Multicast Dissemination Protocol (MDP) in a simulated satellite channel is investigated. The environment that is modeled is that to be expected in a small satellite communications environment including channel errors and link interruptions. The satellite link is simulated with a channel environment simulator. The performance of MDP is compared with file transfer protocol ...

Correlation between Interferometric Synthetic Aperture Radar (InSAR) pairs is essential for accurate interferometric phase estimation and digital elevation model (DEM) reconstruction. In this paper, a SAR simulator capable of generating Rayleigh and K-distributed terrain clutter and estimating correlation between InSAR passes will be presented. Furthermore, this simulator will be used to study ...