Universality of Pseudorandom series

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SUMMARY

The discussion centers on the application of pseudorandom series, specifically Gold codes and Voyager random codes, in communication systems. These codes are essential for achieving narrow bandwidth and improved signal-to-noise ratios, particularly in long-distance communication scenarios where light speed limits transmission times. The conversation highlights the importance of synchronization in using these codes effectively, especially for applications like SETI, which may struggle with long sequences without proper synchronization. The use of a 1024-bit Gold code sequence for mobile phone synchronization exemplifies the practical application of these concepts.

PREREQUISITES
  • Pseudorandom number generation techniques
  • Understanding of Gold codes and their applications
  • Knowledge of spread spectrum communication
  • Familiarity with synchronization methods in communication systems
NEXT STEPS
  • Research the implementation of Gold codes in mobile communication systems
  • Explore the principles of spread spectrum communication
  • Study the synchronization techniques used in long-distance communication
  • Investigate the role of pseudorandom sequences in SETI communications
USEFUL FOR

This discussion is beneficial for communication engineers, researchers in signal processing, and anyone interested in the application of pseudorandom sequences in long-distance communication systems.

dougfgd
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I was involved with pseudorandom series for communications.
For example Gold codes and Voyger randing codes. Do these codes apply with other number systems and hence throughout the universe.
Light speed communication will take years hence codes could be very long, giving very narrow bandwidth and good signal to noise, message may take years to say hello but nice to hear anyway.
Doug
 
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Why do you want to use pseudorandom numbers for communication, especially if the receiver does not know what you send? Why not just send the bits you want to transmit?

What is a "Voyger randing code"? Google gives this thread as top result.
 
This is spread spectrum ; because of correlation the longer the code sequence the narrower the bandwidth and better the signal to noise, I think a short gold code sequence is used for synchronization on your mobile phone. Think of 1024 bit sequence as 1 bit with error correction.
A long sequence was devised for Voyeur , long enough to think of it as a measure tape with no ambiguity over light hours hence high resolution..
SETI allows for spread spectrum (somewhat) but would not recognize long sequences without synchronization and patience of years?
 

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