| 11. | In this application, the connection is referred to as a "'Digital Audio Reference Signal "'( DARS ).
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| 12. | The same measurements that are made for the target signal, DTO and DFO, are made for the reference signal.
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| 13. | The measurement of the reference signal is purely passive and simply serves to remove the biases in the system.
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| 14. | Typically, this is done by making DTO and DFO measurements for a reference signal simultaneous with the target signal measurement.
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| 15. | Suppose the reference signal is 100 kHz, and the divider can be preset to any value between 1 and 100.
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| 16. | Many applications of the lock-in amplifier only require recovering the signal amplitude rather than relative phase to the reference signal.
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| 17. | The output is fed into a lock-in amplifier whose reference signal has the same frequency used to modulate the pump.
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| 18. | The reference signal may be generated from three separate phase references using the \ alpha \ beta \ gamma transform.
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| 19. | Recovering signals at low signal-to-noise ratios requires a strong, clean reference signal with the same frequency as the received signal.
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| 20. | They consist of the DVD-Ram standard disc and reference signal disc for drives and the primary standard evaluation system for discs.
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