PXI structure-based tacan signal speed parameter calibration method and device

Abstract

The invention provides a PXI structure-based tacan signal speed parameter calibration method and device, and the method comprises the steps of connecting a tacan signal simulator to a direct connection port of a coupling direction of a single directional coupler, and connecting a PXI vector signal generator board card to the other direct connection port of the directional coupler; connecting a PXI signal analysis module to a coupling port of the directional coupler, connecting a trigger output port of the PXI vector signal generator board card to a trigger input port of the PXI signal analysis module, and connecting a PXI zero slot controller, the PXI vector signal generator board card and the PXI signal analysis module to a PXI bus. According to the invention, the system size is saved, the test function is integrated, the calibration accuracy is improved, and the tacan signal speed parameter can be traced to the national standard finally; the amplitude point positioning is more accurate, and the accuracy of the measurement result is higher.

Description

technical field [0001] The invention relates to the technical field of instrument measurement, in particular to an automatic calibration method and device, which can be used for the calibration test of the speed parameters of Tacan signals. Background technique [0002] During the debugging, inspection and on-site maintenance of the navigation equipment, the speed parameters of the Tacan signal must be calibrated to verify the performance indicators of the navigation equipment. [0003] At present, when measuring the speed parameters of the Tacan signal, there is no corresponding calibration method to meet the accuracy requirements. Only the general use of a pulse power source combined with a digital oscilloscope can be used to provide excitation signals for the Tacan signal simulator with a digital oscilloscope. Measure the time delay between stimulus and response. For the speed parameter that is changing in time, only the method of counting the time by the stopwatch can b...

AI Technical Summary

Problems solved by technology

[0003] At present, when measuring the speed parameters of the Tacan signal, there is no corresponding calibration method to meet the accuracy requirements. Only the general use of a pulse power source combined with a digital oscilloscope can be used to provide excitation signals for the Tacan signal simulator with a digital oscilloscope. Measure the time delay between stimulus and response

However, for the speed parameters that are changing in time, only the method of reading the stopwatch can be used, the measurement accuracy is extremely low, and effective calibration cannot be performed.

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