This mode has a higher time resolution compared to the Pulse Profile mode. High resolution (20 ns) is achieved by increasing the measurement time, since the pulse profile is formed over a burst of pulses instead of a single pulse. High measurement resolution is achieved through the use of software gating and sequential gate biasing from pulse to pulse (see figure below). The smaller the strobe width, the lower the signal level accumulated by the IF filter. Accordingly, more measured pulses are required to reduce noise using averaging.
Software gating in the “Pulse Profile (High Resolution)” mode
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In this mode, unlike the Pulse Profile mode, the absolute value of the wave quantities (receivers) does not correspond to the real value of the power of the incident and transmitted waves. They will be lower than the real value in proportion to the ratio of the total software gating time and measurement time. |
The settings for this mode are identical to those for the Pulse Profile mode, except that this mode is only used with an internal pulse trigger source.
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For setting the mode in the program interface, see Pulse Measurement Procedure. |
