Frequency domain non-linear signal processing apparatus and meth

Details Frequency domain non-linear signal processing apparatus and meth Frequency domain non-linear signal processing apparatus and meth

1983-06-28

1985-07-16

Cangialosi, Salvatore

Communications, electrical: acoustic wave systems and devices

Receiver circuitry

367121, 367901, 364574, 364715, G01S 386

Patent

active

045300763

ABSTRACT:
Apparatus and method for discriminating against non-Gaussian noise. Analog signals from an array of sensors are converted to real and imaginary digital representations and processed such that non-Gaussian noise is separated from signals of interest. The processor uses estimates of Kurtosis and quantiles from either past or adjacent frequency components to construct non-linear elements, which are then used to process remaining signal data to improve the signal-to-noise ratio thereof by removing non-Gaussian noise therefrom.

REFERENCES:
patent: 4017859 (1977-04-01), Medwin
patent: 4031364 (1977-06-01), Wilmot
patent: 4089055 (1978-05-01), Dyer et al.
patent: 4207624 (1980-06-01), Dentino et al.
Croxton & Cowden: (Textbook) Applied General Statistics Chapt. 10; Dispern, Skewness and Kurtosis, pp. 239-235 of interest, Prentice-Hall, Inc., 1939.
Merkle et al.: Probability Density Functions of Measured Data, Wright Patterson Air Force Base, U.S. Government Publication, 1973, pp. 181-188.

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