Method of generating an amplitude-modulated ISB transmission sig

Details Method of generating an amplitude-modulated ISB transmission sig Method of generating an amplitude-modulated ISB transmission sig

1989-08-22

1990-09-04

Eisenzopf, Reinhard J.

Telecommunications

Transmitter

Amplitude modulation

455 47, 455104, 381 15, 381 16, H04B 168

Patent

active

049550721

ABSTRACT:
In the case of a method for the generation of an amplitude-modulated ISB transmission signal from different AF signal (NF1,2), the signal vectors are split into signal components (x1,y1 and x2,y2, respectively), components sums (X,Y) are formed from the signal components and an amplitude signal (A(t)) and a harmonic phase signal are derived from the component sums. Amplitude signal and phase signal are then further processed separately and combined at the single transmitting tube (43) by combined amplitude modulation and phase modulation into the final transmission signal.

REFERENCES:
patent: 4324952 (1982-04-01), Smiley
patent: 4656440 (1987-04-01), Gautschi
patent: 4725788 (1988-02-01), Lodahl
patent: 4760354 (1988-07-01), Kianush
Electronic Communication Systems, McGraw-Hill 1977, pp. 142-144, G. Kennedy.
Brown Boveri Mitt. (Brown Boveri Review) 5 (1984), pp. 202-205.
The National Telesystems Conference, 7-10, Nov. 82, Galveston, Tex. IEEE (U.S.) S. Udalov: "Independent Sideband Modulation/Demodulation using Digitally Implemented Hilbert Transforms", pp. D3.5.2-D3.5.5.
The National Telesystems Conference, 7-10 Nov. 1982, Galveston, Tex., IEEE (U.S.), J.C. Springett: "Discrete-Time Signal-Processing Theory for Optimum SSB and ISB Modulation/Demodulation", pp. D3.4.1-D3.4.5.

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