📡JAXA | jointly develops command receiver for commercial communication satellite with spread spectrum communication method
~ Significantly improved resistance to radio interference and radio disturbance ~
Based on the design of multimode integrated transponder (Note 3) developed by JAXA, NEC and JAXA have devised several spectrum spreading code detection algorithms that can shorten the frequency detection time.
By narrowing down these multiple algorithms to one by computer simulation and prototype verification and optimizing the design parameters, it is possible to reduce the signal strengths of radio interference waves of 50 times or more (17 dB or more) and radio interference waves , And succeeded in achieving the same level of initial acquisition time (average 5 seconds or less) at the same time.
As a result, the frequency of occurrence of communication failures is lower than before, and satellite operation with less burden becomes possible.
-Translated by TokioX