| 1. | Sonar and lidar systems also have PRFs, as does any pulsed system.
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| 2. | Their pulsed system used a new Philips magnetron with better frequency stability.
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| 3. | Low-flow pulse systems can be left operating continuously without overwatering.
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| 4. | Different pulse systems are used, varying from country to country.
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| 5. | Pulsed systems are typically expensive and require extensive maintenance.
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| 6. | Both continuous wave and pulsed systems are used.
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| 7. | The SFR pulsed system was set up near Paris where it detected aircraft at ranges up to.
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| 8. | Green Satin was a pulsed system, although it was not a pulse-doppler radar in the typical meaning.
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| 9. | Pulsed systems use signal timing to obtain vertical distance resolution, whereas continuous wave systems rely on detector focusing.
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| 10. | However, there is still multipath propagation and inter-pulse interference to fast-pulse systems, which must be mitigated by coding techniques.
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