Frequency-Hopping Spread Spectrum/ FHSS

Definition

FHSS distributes a signal across many narrow channels by hopping carrier frequency on a pseudo-random schedule shared by transmitter and receiver. Because a jammer must cover the entire hop band or predict the schedule, FHSS provides strong resistance to narrowband jamming and intercept. It is the basis of Have Quick, SINCGARS, and many tactical AJ waveforms.

Reference attributes

Class

Spread spectrum

Reference systems

SINCGARS, Have Quick

Related terms

• Anti-Jam Techniques (AJ)
  Waveform and protocol techniques that preserve link integrity under deliberate jamming.
• Direct-Sequence Spread Spectrum (DSSS)
  Spread-spectrum technique that multiplies the data signal by a high-rate pseudo-noise code.
• Single Channel Ground and Airborne Radio System (SINCGARS)
  Legacy U.S. VHF combat-net radio family with FHSS anti-jam mode.