Method, system and equipment for measuring CN ultraviolet spectrum radiation characteristics in unbalanced flow and medium

The invention discloses a method, a system, equipment and a medium for measuring CN ultraviolet spectral radiation characteristics in unbalanced flow. The method comprises the following steps: extracting distribution data of temperature, pressure and component concentration in a flow field around a hypersonic aircraft along a determined sight line direction; performing hierarchical processing on the data; according to real flow field components, the influence of electronic reaction is considered in a collision-radiation model, a transition process between an excited state A and an excited state B is added, and each chemical reaction rate in the model is solved; the calculation precision of the CN (B) energy level density is improved, and the calculation speed of the CN ultraviolet spectrum radiance in the flow field is increased; the system, the equipment and the medium are used for realizing CN ultraviolet spectrum radiation characteristic measurement in the unbalanced flow, a transition process between an e