Serial minimum shift keyed modulator including notch and bandpas

Details Serial minimum shift keyed modulator including notch and bandpas Serial minimum shift keyed modulator including notch and bandpas

1981-05-29

1984-03-20

Grimm, Siegfried H.

Modulators

Amplitude modulator

Nonlinear device controlled by modulating signal

375 47, 375 64, H03C 300, H04L 2712

Patent

active

044384130

ABSTRACT:
An SMSK modulator wherein the output of a bi-phase modulator is passed through a notch filter and a band pass filter to produce an SMSK signal for transmission. The notch filter and band pass filter are constructed to simulate the output (center lobe) of an SMSK conversion filter, which is defined as a filter that converts a bi-phase shift keyed (BPSK) modulated signal into MSK.

REFERENCES:
"760 Mbit/s Serial MSK Microwave Modem", Authors: Ryan, Hambley and Vogt-May 1980-IEE Transactions on Communications, vol. Com-28, No. 5, pp. 771-777.

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