| |
TCP/IP Router Board (TRB) with Ethernet
Interfaces |
|
 |
| |
 The
Ethernet multipurpose board provides a fully space qualified
network system for use in space systems. It features
four 10/100 Ethernet ports (with a selectable Front D-Sub
9 or Compact PCI Package Switched Backplane (cPSB) Connection
for each port) and can be configured as a hub, switch, or
router. In addition, the processor software core is
embedded in a radiation tolerant Field Programmable Gate Array
(FPGA), allowing rapid recovery from radiation upsets or flash
upgrades in space.
|
| |
|
| |
Space-Based
Virtual Private Network Application (SpaceVPN) |
|
|
| |
The SpaceVPN addresses the unique problems of space access
and multi-satellite internetworking, and their integration with
a ground-based Internet. The primary objective of this
research is the extension of standard Internet Protocol (IP)-based
Virtual Private Networks to space (i.e. SpaceVPNs) to create
a scalable, secure IP-based communications infrastructure for
distributed information in space. |
| |
|
| |
Low Cost RADAR
Antenna |
| |
|
| |
The low cost RADAR antenna is a lightweight,
deployable, dual-frequency / polarization microstrip antenna
array, used for the remote sensing of precipitation (typically
from space-based systems). These antennas are manufactured
using flexible liquid crystal polymer (LCP) organic-substrates
and radio frequency micro-electro-mechanical systems (MEMS)
switches on silicon and LCP substrates. |
| |
|
| |
Seamless Handover in Space
Networks |
|
|
| |
The seamless handover of space networks research
is developing protocols to autonomously resolve communications
handovers for objects in motion in view of multiple communications
sites simultaneously. By utilizing the multihoming features
of the stream control transmission protocol (SCTP), multiple
satellites and ground stations can seamlessly interoperate,
reducing the time required to switch over and improving overall
system performance and availability. |
| |
|
| |
IP Compliant Operations
Technology Demonstration |
|
|
| |
The Internet Protocol (IP) compliant operations
technology provides a secure, survivable, end-to-end architecture
for the remote operation of spacecraft elements over the Internet. It
includes a structured interface that performs autonomous network
intrusion detection and countermeasures, user authentication,
user command verification, user/command prioritization, and
non-repudiation. Currently being used in control access
to and remotely command the CLEO flight experiment, the technology
is currently deployed at both NASA GRC and Schriever AFB, operating
in the pilot/co-pilot mode. |
| |
|
| |
In order to
view and print the PDF documents on this page, you will need
to download a copy of Adobe
Reader which is available free for personal use from the Adobe
site. |
