Amplitude stabilization loop device for pulse power measurement

Abstract

The invention discloses an amplitude stabilization loop device for pulse power measurement, which comprises a data acquisition unit, a data processing unit, and a waveform comparison control unit, wherein the data acquisition unit is used for acquiring pulse amplitude data based on a pulse rise and fall change process; the data processing unit uses a density distribution statistical average method to analyze the pulse amplitude data, and an average value of the pulse signal amplitude is obtained; and the waveform comparison control unit carries out difference operation by using the average value of the pulse signal amplitude and standard voltage, and a difference signal of the two is amplified for controlling output of a signal source. The technical scheme of the invention adopts a digital sampling and comparison technique, the pulse signals can be effectively synchronized, and the device can be applied to amplitude stabilization for pulse signals under each pulse width and period, and can ensure power measurement uncertainty value in a small duty ratio condition to be unchanged.

Description

technical field [0001] The present invention relates to amplitude stabilization loop design. More particularly, it relates to an amplitude stabilization loop device for pulse power measurement. Background technique [0002] In the field of power measurement, it is a common and effective measurement method to adopt the structure of amplitude stabilizing loop. It has the advantages of high power stability and small connector mismatch. [0003] The amplitude stabilization loop for power measurement is the external auxiliary equipment of the microwave signal source. It is generally composed of three-port devices, power sensors and power meters. The composition structure is as follows: figure 1 shown. The signal output by the signal source enters port 1 of the three-port device and is divided into two channels, which are output by port 2 and port 3. The power sensor detects the output signal of port 3 and converts it to a DC signal internally, which is sampled and processed by...

AI Technical Summary

Problems solved by technology

[0006] An object of the present invention is to provide an amplitude stabilizing loop device for pulse power measurement. This solution breaks through the limitation that the original amplitude stabilizing loop is only suitable for continuous wave power, and solves the problem of pulse width and pulse period in the prior art. Uncertainty, and the problem that the amplitude stabilization loop will make the power measurement uncertainty larger under the condition of small duty cycle

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