High speed onboard digital signal processing and LSI implementation (satellite communications)

The authors propose the optimum configuration of onboard high speed signal processing employing extremely high speed serial-to-parallel (S/P) converters and high speed unique word detectors followed by low speed digital signal processing circuits for the receive side onboard TDMA equipment. Experimental results show that the GaAs P/S and S/P conversion LSIs operate up to a frequency of 1 GHz range, and the CMOS/SOS unique word detector LSI operates up to a frequency of 200 MHz in a 2-parallel processing mode. As a result, it is clarified that the proposed configuration is optimum for onboard high speed signal processing under present LSI technologies.<>