Boots – shoes – and leggings
Patent
1989-05-23
1990-09-11
Gruber, Felix D.
Boots, shoes, and leggings
342 91, G01S 728, G01S 766
Patent
active
049567926
ABSTRACT:
A target signal detecting apparatus for discriminating and detecting a target signal from a noise signal having an amplitude characteristic which exhibits the Weibull distribution. A received signal whose amplitude intensity distribution is in accordance with the Weibull distribution with its probability density function Pc(x) given by the following ##EQU1## is subjected to logarithmic transformation so that a mean-square value <y.sup.2 > of the amplitude of the logarithmically transformed received signal (y=lnx) and a square value <y>.sup.2 of the mean are calculated and a distributed parameter C is calculated in accordance with the mean-square value <y.sup.2 > and the square value <y>.sup.2 of the mean as follows ##EQU2## Then, the calculated distributed parameter C is compared with a predetermined threshold so that if the distributed parameter C is greater than the threshold value, it is delivered as the distributed parameter corresponding to a target signal. Also, there are cases where the calculated distributed parameter C is amplified non linearly and then compared with the threshold.
REFERENCES:
patent: 4099075 (1978-07-01), Goldberg et al.
patent: 4242682 (1980-12-01), Musha et al.
patent: 4318101 (1982-03-01), Musha et al.
patent: 4513286 (1985-04-01), Irabu
patent: 4586043 (1986-04-01), Wolf
Sekine et al: Suppression of Weilbull Distributed Clutters using a Cell-Averaging Log/CFAR Receiver, IEEE Transactions on Aerospace and Electronics, vol. AES-14, No. 5, Sep. 1978, pp. 823-826.
Schleher: Radar Detection in Weilbull Clutter, IEEE Trans on Aerospace and Electr. Systems, vol. AES-12, No. 6, Nov. 1976, pp. 736-743.
Goldstein: False Alarm Regulation in Log-Normal and Weilburg Clutter, IEEE Transactions on Aerospace and Electronics Sytems, vol. AES 9, No. 1, Jan. 1973, pp. 84-92.
LandOfFree
Target signal detecting apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Target signal detecting apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Target signal detecting apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1189093