Boots – shoes – and leggings
Patent
1983-05-05
1985-12-10
Krass, Errol A.
Boots, shoes, and leggings
364449, 244180, G06F 1550
Patent
active
045584184
ABSTRACT:
A leading edge estimator for a vehicle terrain navigation system is described, the system having a radar terrain sensor which generates a position signal. The leading edge estimator includes a storage circuit for storing a time of arrival signal estimate. A delay circuit receives the position signal from the radar terrain sensor and produces a delayed version thereof. The position signal and the delayed version thereof are differenced and applied to a sample & hold circuit, which generates a sample of the differenced signal after a predetermined time period. The output of the sample & hold circuit is then applied to a one bit analog-to-digital convertor which determines the sign of the sampled difference signal. The output of the analog-to-digital convertor is then used as a control signal to effect the gating of one of two predetermined weighting factors. The estimator also includes an adder, connected to receive the selected weighting factor, for summing the weighting factor with the time of arrival signal estimate to generate an up-dated time of arrival signal estimate.
REFERENCES:
patent: 3176119 (1965-03-01), Deschumps
patent: 4016565 (1977-04-01), Walker
patent: 4103847 (1978-08-01), Thomas et al.
patent: 4117538 (1978-09-01), Shrader et al.
patent: 4144571 (1979-03-01), Webber
patent: 4176337 (1979-11-01), Aechter et al.
patent: 4218703 (1980-08-01), Netravali et al.
patent: 4224669 (1980-09-01), Brame
Angotti Donna L.
Crowder, Jr. Albert M.
E-Systems Inc.
Krass Errol A.
LandOfFree
Leading edge estimator for navigation 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 Leading edge estimator for navigation system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Leading edge estimator for navigation system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-62786