Method for using circular spreading codes to achieve high bit de

Details Method for using circular spreading codes to achieve high bit de Method for using circular spreading codes to achieve high bit de

1998-01-05

2000-02-15

Ghebretinsae, Temesghen

Pulse or digital communications

Repeaters

Testing

375206, H04B 1707

Patent

active

060261188

ABSTRACT:
A method for achieving high bit densities in a direct-sequence spread spectrum communication system by using circular spreading codes. The circular spreading code is a pseudo-noise spreading code that is shifted by n. This circular pseudo-noise spreading code is then used to spread an information signal by modulating the information signal with the circular pseudo-noise spreading code. The same circular pseudo-noise spreading code is also used to demodulate the signal. The value of n used is that which corresponds to the value of the signal to be spread.

REFERENCES:
patent: 5315616 (1994-05-01), DeLisle et al.
patent: 5423001 (1995-06-01), Ueda

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