Modulating a digital signal with narrow spectrum and...

Details Modulating a digital signal with narrow spectrum and... Modulating a digital signal with narrow spectrum and...

2005-03-15

2005-03-15

Corrielus, Jean B. (Department: 2637)

Pulse or digital communications

Transmitters

C375S316000

Reexamination Certificate

active

06868126

ABSTRACT:
A transmission signal (S) resulting from modulation of a digital data signal by a modulation function dependent on time t, the data signal being formed of a series of bits (bk) each identified by its rank k and having a duration T, the transmission signal (S) consisting of a summation indexed to the rank k of the product of the complex constant j to the power k, of the modulation function (h(t−kT) and of an input signal. The input signal F(k) being a function of the data signal (bk), the modulation function h(t−kT) is a Gaussian function of time t.

REFERENCES:
Canturk, I. et al, “An Experimental Investigation of GMSK Modulation”, Apr. 1994, IEE Proceedings of the Mediterranean Electrotechnical Conference, vol. 1, pp. 141-144.

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