Boots – shoes – and leggings
Patent
1978-12-04
1981-03-10
Gruber, Felix D.
Boots, shoes, and leggings
364574, 375 14, 375 99, 455296, H04B 314, H04B 110
Patent
active
042557917
ABSTRACT:
An adaptive array signal processing system employs a correlation discriminant operator or signal recognizer. The operation of the signal recognizer is dependent upon noise decorrelation rather than noise filtering, so that an unbiased, although sometimes noisy, measurement of desired signal power can be effected on an instantaneous basis. In the signal recognizer, an input signal, as derived from the summation of a plurality of weighted signal receiver outputs, e.g. antenna voltages, and containing both information and noise, is combined with an a priori reference signal through a time delay multiplication process. The combined or output signal of the signal recognizer contains an information component that is effectively correlated with the information component in the input and a noise component that is effectively uncorrelated with any other signal in the system. Within the adaptive system of the present invention, the signal recognizer is incorporated in a weight control circuit that employs a positive signal feedback network for obtaining an optimal signal-to-noise ratio. Within the weight control circuit, the correlation discriminant operator properties are advantageously employed to cause desired terms, namely, the signal components of interest, to largely retain their correlation properties, while causing the undesired terms, e.g. noise, jamming, etc., to become uncorrelated with other signals, so that a weight control signal that achieves a maximizing of the signal-to-noise ratio can be produced.
REFERENCES:
patent: 3543012 (1970-11-01), Courtney
patent: 3588385 (1971-06-01), Moye
patent: 3810067 (1974-05-01), Heidecker
patent: 3921072 (1975-11-01), Sato
patent: 3993956 (1976-11-01), Gilmore et al.
patent: 4097866 (1978-06-01), Frost et al.
Lee et al., Correlation Functions and Communication Applications Electronics, Jun. 1950, pp. 86-92.
Lee et al., Application of Correlation Analysis to the Detection of Periodic Signals in Noise, Proceedings of the I.R.E., Oct. 1950, pp. 1,165-1,171.
Harris and Crede, Shock and Vibration Handbook, McGraw-Hill Book Co., 1964, vol. 2, pp. 22-23 to 22-26.
Sambur, Adaptive Noise Cancelling for Speech Signals, IEEE Transactions on Acoustics, Speech and Signal Processing, vol. ASSP-26, No. 5, Oct. 1978, pp. 419-423.
Gruber Felix D.
Harris Corporation
LandOfFree
Signal processing system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Signal processing system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Signal processing system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1297500