Digital Processing Options/Capabilities

Programmable channelization-- Supports multiple simultaneous services and real-time modifications. Input/output channels of 250 MHz and beyond, divisible on orbit into subchannels of 1 kHz to 250 MHz.

• Perfect channel/subchannel reconstruction from any mix of subchannels
• Currently more than 10 GHz bandwidth; increasing rapidly
• Easily performs time division multiplexing (TDM) circuit switching, channel power control, monitoring, traveling wave tube amplifier (TWTA) linearization and equalization
• Compatible with any signal format and programmable to many bandwidths

Phased Array Antennas

Regenerative system-- Ideal for Internet services, this highly efficient autonomous operation requires less link power due to user data recovery and error detection and correction.

• Autonomous packet switching enables mesh connectivity with little or no ground control
• Currently more than 10 GHz bandwidth; technology advancing rapidly
• Demodulation/remodulation and error control vastly improve link margins, allowing link closure with lower power, smaller antennas
• Digital packet power control, monitoring, TWTA linearization and equalization

Typical Regenerative Payload

Typical Channelized Payload

Digital beamforming-- Maintains business adaptability. Available for both transmit and receive, provides virtually infinite number of independent beams, all with different shapes.

• Bandwidths of more than 125 MHz per beam
• A few to hundreds of elements possible
• Antenna patterns and number of beams reprogrammable at any time

Digitally controlled analog beamforming-- Wideband beamforming (over 1 GHz/beam) and dynamic beam controls. A single 12-beam phased array can rapidly scan many locations on earth, providing thousands of "virtual" time division multiple access (TDMA) beams.

• Simple antenna commanding, fault-tolerant design for increased reliability

PowerPC

Spaceborne computing-- For immense throughput with more speed and memory than the competition, choose our space-qualified 250 MHz PowerPC 750 computer.