6533b826fe1ef96bd128505c
RESEARCH PRODUCT
Signal-to-Noise Ratio in Bandpass Direct-Sequence Spread-Spectrum Modulation Systems
L. AlcuriG. MamolaE. Randazzosubject
Signal processingComputer scienceAutocorrelationDirect-sequence spread spectrumTopologySpread spectrumSignal-to-noise ratioBand-pass filterModulationElectronic engineeringFigure of meritElectrical and Electronic EngineeringComputer Science::Information TheoryCommunication channeldescription
The effects of a linear transmission channel on the performance of a correlator receiver for a direct-sequence spreadspectrum system are analyzed and a complete treatment of the influence of a periodic spreading code is carried out. The output data signal is obtained as a function of the channel characteristic and the code sequence employed; this allows maximizing the output signal level and evaluation of the influence of the synchronization error of the local code. The asymptotic value of the correlation loss has also been derived together with the intersymbol inteference power. The general expression of a figure of merit of the effectiveness of the system is also obtained in simple terms of the low-pass equivalent frequency characteristic of a symmetric channel and of the code.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1982-03-01 | IEEE Transactions on Communications |