A Method of Improving the Trigger Accuracy of Peak Power Measurement
A technology of peak power and accuracy, which is applied in the field of improving the trigger accuracy of peak power measurement, can solve the problems of relatively high requirements, low trigger accuracy, time-consuming and laborious, etc., and achieve the effect of improving personnel efficiency and high trigger accuracy
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[0029] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:
[0030] The present invention needs to solve two problems:
[0031] (1) Automatic calibration of the trigger circuit;
[0032] (2) Interpolation algorithm of multiple power points.
[0033] Since the trigger dynamic range of the peak power probe is [-20dBm, 20dBm], the present invention selects 9 power points (-20dBm, -15dBm, -10dBm, -5dBm, 0dBm, 5dBm, 10dBm, 15dBm, 20dBm) for automatic calibration and Interpolation algorithm.
[0034] 1. Automatic calibration of the trigger circuit
[0035] figure 1 Shown is a schematic diagram of the trigger circuit. The voltage value of the input signal refers to the voltage value before the input power enters the A / D converter and comparator after detection, amplification, filtering, and zero adjustment.
[0036] The automatic calibration process of the trigger circuit is as follows (N takes 9):
[0037...
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