NEC space activities for telecommunication satellite system - APRSAF
NEC space activities for telecommunication satellite system - APRSAF
NEC space activities for telecommunication satellite system - APRSAF
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3.Advanced products -onboard processor-Digital beam <strong>for</strong>mer▌Analog beam <strong>for</strong>mer▌Digital beam <strong>for</strong>mer• 10 beams• Analog device (phase shifter,amplifier, harness)⇒very complex , heavy• Fixed configuration• 100 beams• FPGA、ASIC 、ADC/DAC⇒ programmable , light• Flexible in orbit and groundswitchPhase shifteramplifierswitchoutputFPGAinputcontrollerWeight 30kg 10beams Weight 10g 100beamsPage 19© <strong>NEC</strong> Corporation 2010
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