The invention relates to the technical field of unmanned aerial vehicle performance testing and
electromagnetic compatibility, and discloses a method and
system for evaluating GNSS anti-deception jamming performance of an unmanned aerial vehicle in a
darkroom, and the method comprises the steps: adjusting the support rod
diameter of a hoisting
system, adjusting bearing parameters, and fixing the unmanned aerial vehicle in a
central region of the
darkroom according to the model of the tested unmanned aerial vehicle; the method comprises the following steps: starting
system self-inspection, after ensuring that each module works normally, starting a first GNSS
signal simulator to emit a real navigation
signal, controlling the unmanned aerial vehicle to
lift off and stably hover, and recording initial positioning precision P0 and flight attitude parameters including a
pitch angle theta 0, a roll angle phi 0 and a
yaw angle psi 0; synchronously starting a
magnetic field interference source and a second GNSS
signal simulator, and applying mixed interference according to a set
time sequence;
coupling noise is eliminated by using a mixed interference
data processing algorithm; and judging whether the anti-deception jamming performance of the unmanned aerial vehicle reaches the standard or not according to a quantitative evaluation standard corresponding to the model, and recording an anti-interference critical value, thereby realizing accurate evaluation of the anti-deception jamming performance of the unmanned aerial vehicles of different models in an environment close to an actual complex environment.