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| Fiber
Optic Antenna Remoting |
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| Digital vs Analog
Links |
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| LO |
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| To Signal |
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| Processor |
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| Optical
Fiber |
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| E/O |
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| Transducer |
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| O/E |
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| Transducer |
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| A/D |
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| Analog |
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| Signals |
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| Digital |
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| Data |
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| Digital |
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| Data |
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| Preselector |
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| Filter |
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| Digital Fiber
Optic Link |
|
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| • | Downconverter and A/D size and power
consumption are major concerns |
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| • | Requires phase synchronization of LOs at
all the antenna elements |
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| LO |
|
|
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| To Signal |
||
| Processor |
||
| Optical
Fiber |
|
|
|
| E/O |
||
| Transducer |
||
|
|
|
| O/E |
||
| Transducer |
||
| A/D |
|
|
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| Analog |
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| Signals |
||
|
|
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| Analog |
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| Signals |
||
|
|
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| Digital |
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| Data |
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|
|
|
| Preselector |
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| Filter |
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| Analog Fiber
Optic Link |
|
|
|
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| • | Minimizes size and power consumption of
componentry at antenna element |
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| • | Requires high-performance analog fiber
optic link |
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| 6 |