Processing Gain in Spread Spectrum Signals.

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1Processing gain in Spread Spectrum FakatselisHarris Box 883, Melbourne, FL. 32902-0883ABSTRACTThis paper addresses the Processing gain (PG) characteristics of Spread Spectrum Systems. PGprovides some unique properties to the Spread Spectrum waveforms that can primarily improveperformance in the area of interference tolerance. The paper describes the benefits ofprocessing gain and the reasons that the PG properties have been attractive for both military andcommercial applications. It describes the signal Processing required to implement such systemsfor Direct Sequence (DS), Frequency hop, and Hybrid Spread Spectrum Systems. The papergives examples of applications that use the PG properties in communications systems. Anoverview of the maturity and the state of the art of presently available Spread Spectrumtechnology is also INTRODUCTION. Processing gain (PG) is a term used todescribe one of the unique properties of SpreadSpectrum Waveforms.

3 RECEIVER FILTER UNSPREAD SIGNAL SPREAD SIGNAL PROCESSING GAIN NOISE Figure 2. DS Processing Gain concept at the receiver. The primary benefit of processing gain is its

  Gain, Noise, Signal, Gain noise