Experimental Assessment of the Resistance Parameters of a Radio Equipment to the Influence of Powerful Electromagnetic Radiation

Abstract

The existing approaches to quality control and quantitative assessment of the resistance of radio equipment to the influence of powerful electromagnetic radiation do not allow such an assessment to be fully carried out due to the low probability of quantitative assessments, the complexity of the functional construction of individual radio equipment, etc. Therefore, the most objective is the experimental method of assessing the resistance of a radio-technical device to the influence of powerful electromagnetic radiation, which allows taking into account the functional connections between individual devices of a radio-technical device and their features. The article describes the main parameters that determine the resistance of radio equipment to the influence of powerful electromagnetic radiation, the choice of methods for measuring the parameters of tested radio equipment before, after and during exposure to powerful electromagnetic radiation, as well as recommendations for conducting experimental studies of the stability of radio equipment with the available control and measurement equipment as part of the control and test stand.

The control and test stand must meet the following basic requirements: affect the operation of the tested radio electronic means; have a speed that is sufficient to register the expected change in the controlled signals of the radio electronic means and transient processes in their circuits; have the necessary multi-channel capability, which allows you to register the entire set of signals that characterize the operation of the radio electronic means; have high interference resistance.

Standard memory oscilloscopes, including loop ones, can be used as part of the control and test stend to measure and register low-frequency signals (parameters of the radio electronic means power sources, control signals, telemetry signals, code structures of transmitted signals, etc.). Methods of controlling the high-frequency parameters of the radio electronic means, determining their susceptibility to the influence of powerful electromagnetic radiation, should include measuring the sensitivity of the radio receiver as a function of the carrier frequency of the electromagnetic field by measuring the power or voltage of the signal at the input of the receiver, in which the ratio Uc / (Ush+Up) at the output of the receiver is not less than the given value.