Рассмотрен один из вариантов реализации комплексного сигнала частотно-временной синхронизации, предложены структурные схемы формирователя и приемника сигнала, представлена аппаратная реализация, показан спектр сигнала.
The time-frequency synchronization error achieved by used synchronization signal set does not meet the present requirements of user synchronization quality. The new complex time-frequency synchronization signal (CTFSS) allows achieving required synchronization error. A CTFSS implementation variant consists of two components: the carrier and the modulating signal of pseudorandom noise and message signal. The CTFSS former has a quadrature structure with subcarrier and single-sideband modulation. The CTFSS receiver has the carrier phase estimation channel and the PRN delay estimation channel. The PRN delay is estimated by the delay detector response interpolation after the pre-search without a delay-locked loop. The CTFSS former and receiver hardware implementation is performed on VHDL hardware description language and packed in IP core. The verification has made on laboratory model with FPGA, ADC and DAC.