SPREAD SPECTRUM MODULATION TECHNIQUES

-spread spectrum - those modulation methods that are producing a signal whose

spectrum is more wider than of the data signal, the occupied frequency band being

independent by the signal of data band.

-The signals with spread spectrum of direct sequence type BPSK (BPSK-DS-SS)

-The signals with spread spectrum of direct sequence type QPSK – DS–SS

- Frequency hopping spread spectrum signals (FH-SS)-SPREAD SPECTRUM MODULATION TECHNIQUES

-spread spectrum- those modulation methods that are producing a signal whose

spectrum is more wider than of the data signal, the occupied frequency band being

independent by the signal of data band.

-The signals with spread spectrum of direct sequence type BPSK (BPSK-DS-SS)

-The signals with spread spectrum of direct sequence type QPSK – DS–SS

- Frequency hopping spread spectrum signals (FH-SS)