Application of direct spread spectrum sequence

  • Cordless phones operating in the 900 MHz, 2.4 GHz and 5.8 GHz bands. 
  • United status GPS technology, European Galileo and Russian GLONASS satellite navigation systems used DS/SS system with a single PN code in conjunction with FDMA and later it is used to achieve CDMA with multiple PN code.  
  • Used in the low probability of intercept signal.
  • It obtain message privacy.
  • Used military and many commercial application.
  • The unique spreading codes support code division multiple access.
  • Support various decision making level.
  • To reject unintentional  interference.
  • To minimize self interference due to the multi-path propagation.
  • It is used in automatic meter reading. 
  • Used in IEEE 802 11b and Zigbee network. 
  • Radio controlled model automotive vehicles. 

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