The invention discloses a
near space high-speed target
plasma electromagnetic measurement
system which comprises a cylindrical horizontal vacuum cavity, wherein a
nozzle plane of
plasma entering the vacuum cavity cannot be coplanar with the end face of the vacuum cavity; transmitting and receiving antennas of a transmission measurement
system are respectively erected on the lower guide rails on the two sides, the transmitting and receiving antennas of the transmission measurement
system are symmetrically erected and can perform two-dimensional movement along the axis direction and the radial direction of the
plasma, a to-be-measured target of a scattering measurement system is erected on the lower guide rail in the middle, and transmitting and receiving antennas of the scattering measurement system are all erected on the upper guide rail; and a transmitting antenna of an internal
electromagnetic field measurement system is erected on any group of lower guide rails on the two side edges, and an
electric field /
magnetic field probe for receiving an
electromagnetic field is erected on the lower guide rail in the middle. According to the invention, three measurement systems, namely, the transmission measurement system, the scattering measurement system and the internal
electromagnetic field measurement system, in plasma electromagnetic measurement are considered at the same time, so that an electromagnetic scattering experiment and a transmission experiment can be configured at the same time and do not influence each other.