acquisition time

Definitions

1. 1

   The amount of time required to acquire and convert a signal into a data record.

   • In this context, mean acquisition time is used as a performance measure.
   • During the acquisition time, the sample switch closes and the input voltage charges the A/D's internal 120 pF capacitance C_(HOLD).
   • The acquisition time for a UWB signal is thus large due to a combination of the low energy per pulse and very short pulse durations (nanoseconds or hundreds of picoseconds, typically).
2. 2

   The amount of time required for a GPS receiver to acquire a satellite signal in order to…

   The amount of time required for a GPS receiver to acquire a satellite signal in order to determine the initial position.

3. 3

   The time taken to sample data in order to obtain an image or measurement to a specified…

   The time taken to sample data in order to obtain an image or measurement to a specified resolution.

   • Following the pulse irradiation, the acquisition time is the part of the sequence where the free induction decay (FID) signal is recorded. The acquisition time is dependent on the digital resolution required.
   • The best way to deal with motion is to shorten the acquisition time.
   • Reducing the acquisition time to 2s results in the sampling of 32K real data points, and acceptance of reduced digital resolution at 0.25 Hz/point, but it will reduce sample heating if C decoupling is used.
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   1. 4

      The time needed to synchronize with an electronic signal.

      • To see an increased acquisition time as an extension of coverage might seem strange at initial thought but this could actually be a means that can improve coverage for all type of channels.
      • Therefore, to the first-order, the acquisition time increases linearly with increasing frequency steps and decreases as a quadratic with increasing natural frequency.
   2. 5

      The time needed to complete a procurement.

      • We believe that management control, planning, accountability, and specific procurement practices to be discussed, work together as an integrated whole to reduce the total acquisition time and complexity.
      • To assess total acquistion time for the sample, we divided the process into three components: requirements development, internal approval, and solicitation to award.

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