Modulating domain analyzing module based on A/D conversion
An analysis module and analog-to-digital conversion technology, which is applied in the field of communication measurement, can solve the problems of interpolation counting pulse system error, low test accuracy of slope interpolation method, and high precision requirements of analog circuits, etc., to achieve elimination of system error and simple and easy control line, the effect of frequency range extension
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[0028] The modulation domain analysis module based on analog-to-digital conversion of the present invention can be combined with figure 2 , image 3 The description is as follows, where, figure 2 It is a functional block diagram of the modulation domain analysis module based on analog-to-digital conversion of the present invention; image 3 It is the signal processing flowchart of the module of the present invention.
[0029] After signal preprocessing, the measured signal FX is sent to the event counter in the two zero waiting time (ZDT) counters for counting, and the other is sent to the time gate logic control unit; the time base signal CLK is sent to two zero waits all the way The time base counter in the time (ZDT) counter counts, and the other is sent to the time gate logic control unit. The time base signal CLK generates a gate signal through a frequency divider in the time gate logic control unit, which is called the original gate signal G. The original gate signal G is ...
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