Communications EW, Part 10 - Jamming Spread-Spectrum Signals

摘要

Spread-spectrum signals are subject to the same jamming equations as any other signals, but the ability of the cooperative receiver to collapse the spectrum gives it a "processing gain" that reduces the effectiveness of the jamming. In general, the processing-gain advantage is the same as the spreading ratio (i.e., the transmission bandwidth/the information bandwidth). It is also defined (in direct-sequence spread-spectrum signals) as the code rate (used for spreading) divided by the data rate.