• Flight Test of SDM Telemetry System

      Ming, Zheng; Qi-shan, Zhang; Beijing Institute Aeronautics and Astronautics (International Foundation for Telemetering, 1988-10)
      Orthogonal functions are the mathematical foundations of implementing multiplex transmission. Walsh functions are a set of functions which are orthogonal, normalized, and complete. They can also be used to accomplish multiplex transmission - constituting a new kind of telemetry system. In this paper, the constitutive principle of Walsh function telemetry system is introduced, the Walsh function telemetry system has already been built, the experiments performed recently on this system and the results of flight experiment are comprehensively discussed.