The realization of FH/DS/DQPSK, DS/D8PSK digital correlator sampling on intermediate frequency

In this paper, we introduce one pattern of the intermediate frequency sampling digital correlator in the "multi-frequency bands, multi-patterns software radio", explain the realization technology plan of FH/DS/DQPSK, the DS/D8PSK spread spectrum signal demodulator, and then give the test results. This intermediate frequency digital correlator is realized by a high speed digital signal processing chip (DSP), FPGA and the corresponding software, which has matched some of the project's high speed data transmission and 256 Kbps image transmission demands.