PSK Modulator with preset amplitude and phase corrections for ea

Details PSK Modulator with preset amplitude and phase corrections for ea PSK Modulator with preset amplitude and phase corrections for ea

1983-10-26

1986-01-21

LaRoche, Eugene R.

Modulators

Amplitude modulator

Nonlinear device controlled by modulating signal

332 18, 332 23R, 332 30V, 455 42, 455 63, 455110, H03C 300, H03C 304, H03C 318, H04B 104

Patent

active

045659800

ABSTRACT:
A phase modulation method and apparatus for modulating the phase of a carrier wave in accordance with a binary modulating signal to produce a modulated wave. At least one of the amplitude and the phase of the carrier wave or the modulated wave is corrected by predetermined amounts in response to the value of the binary modulating signal, so that the phase position of the modulated waves becomes equal to one of a number of predetermined positions and so that the amplitudes of the modulated waves coincide.

REFERENCES:
patent: 3437957 (1969-04-01), Ames
patent: 3437958 (1969-04-01), Shaw et al.
patent: 4130811 (1978-12-01), Katz et al.
Seki et al., "Modulator and Demodulator Circuits for a Trial 4-Phase PSK Millimeter Wave Repeater", Review of the Electrical Communication Laboratories, vol. 23, No. 1-2, pp. 85-99, Jan.-Feb. 1975.
Watanabe et al., "Optimum Modulator Design for High Sensitivity Homodyne System Binary Modulation Method", IEEE Xactions on Microwave Theory and Techniques, vol. MTT-23, No. 4, pp. 354-359, Apr. 1975.
Chang et al., "High Data-Rate Solid-State Millimeter-Wave Transmitter Module", IEEE Xactions on Microwave Theory and Techniques, vol. MTT-23, No. 6, pp. 470-477, Jun. 1975.
Cuccia, "New PCM Techniques Stress Spectrum and Conservation, Part II", Microwave Systems News, vol. 7, No. 2, pp. 37-54, Feb. 1977.

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