Naval EarthMap Observer (NEMO)
NEMO
is a joint effort between Naval Research Laboratory and a commercial partner
as a dual-use remote sensing satellite for demonstrating, developing, and distributing
hyperspectral technology and imagery to the government and commercial sectors.
Payload
Controller
FPGA
Formatting Section
PECL Serializer for I and Q Channels
Microcode Frame Formatting Control (uploadable from the ground)
Actel 14100, 150Mbps X Band Downlink, 1.024Mbps S Band Downlink
Fully CCSDS, Reed Solomon, Pseudo Randomized, Differentially Encoded, Convolutional
Encoded
Related
Sites
Silver
Engineering, Inc. is responsible for the Command, Telemetry, and Data Handling
for the NEMO spacecraft. SEI is designing the high speed switched network module
and the wide band data formatter for the payload controller sub-system of the
satellite. SEI also is responsible for the P1 and P2 backplanes used within
the NEMO payload controller.
Silver Engineering, Inc. is designing the Switch Ear/Mouth function for the
NEMO EAGE (electrical aerospace ground equipment) system and is supplying Bus
Protection Units (BPU) and NEMO compatible command encoder units (NEMO-CEU)
in support of ground testing.
Main
board contains FPGA Switch Matrix for A and B sides.
Daughter card contains PECL Drivers and Receivers for A
and B sides.
Actel 14100, 7 Port In, 6 Port Out, 200Mbps Switch Matrix
Redundant, Fully Cross-Strapped
Switch
Matrix
Wide
Band Formatter
Click
on above photos to enlarge
Click
on above photo to enlarge
