A method to increase the speed of peak power measurement

Abstract

The invention provides a method for improving peak power measurement speed, which comprises a peak power meter. The peak power meter comprises an A / D converter; the A / D converter is connected with a field programmable gate array; the field programmable gate array is internally provided with a temperature parameter register, a frequency factor register and a random access memory; the temperature register is connected with the frequency factor register; the frequency factor register is respectively connected with a first memory and a second memory; and both the first memory and the second memoryare respectively connected with a random access memory through a single-pole double-throw switch. According to the method for improving peak power measurement speed in the invention, the ADC is converted into power data with only a delay of 4 clock periods, and the time delay is 40ns. One sampling period mainly comprises sampling time of 1000 data points, reading time of a digital signal processor, simple calculation time of the digital signal processor, the reading time of a central processing unit, etc.; the total time is less than 1 ms; the efficiency is improved by more than 40 times compared with the existing method.

Description

technical field [0001] The invention relates to the field of peak power meter power measurement, in particular to a method for improving the peak power measurement speed. Background technique [0002] The peak power meter can sample the detection envelope of the pulse modulation signal at high speed, and display the waveform of the detection envelope on the screen. Time parameters such as time and pulse width. [0003] Such as figure 1 Shown is the hardware schematic diagram of the current peak power measurement. The 14-bit A / D converter converts at a sampling rate of 100Ms / s. The converted ADC data is sent to the FPGA. Inside the FPGA, the sampling control circuit is based on the sampling control signal. And sampling trigger signal, store the required ADC data in RAM, after one sampling, DSP will read the data to be calculated from RAM, and perform calculation and compensation inside DSP, and pass the result after calculation through HPI bus Send it to the CPU and displa...

AI Technical Summary

Problems solved by technology

[0010] Aiming at the problem of slow peak power measurement speed at present, the present invention provides a method for improving the peak power measurement speed, which can increase the peak power measurement speed by more than 40 times

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