Accession Number : ADD015003

Title :   Multiple Sensor Magnetometer with Temporal Noise Reduction and Controllable Spatial Response on a Moving Platform.

Descriptive Note : Patent filed 21 Jun 82, patented 9 Jul 91,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Byram, George W

Report Date : 09 Jul 1991

Pagination or Media Count : 12

Abstract : A mobile magnetometry processing system which scans an area in order to measure the magnetic field strength over the area, comprising: a plurality of N sensors for sensing the magnetic field of the rea being scanned, each sensor generating an output signal, for example, a voltage, which is a function of the magnetic field it scans, the sensor being aligned in the general direction of the motion of the system; a plurality of N sets of means for weighting, for receiving and weighting the N signals from the means for sensing, each of the N sets comprising M weighting means; a plurality of M summers, each have N inputs, one from each of the N sets of means for weighting, for summing its N input weighted signals; and a plurality of M filters each having an input which is connected to the output of a summer, for delaying the exit of an input signal by an amount of time equal to the time required for a sensor to advance the distance to the nearest adjacent sensor, the filtering process comprising a convolution.

Descriptors :   DETECTORS, FIELD INTENSITY, FILTERS, INPUT, MAGNETIC FIELDS, MAGNETOMETERS, MAGNETOMETRY, MEASUREMENT, MOBILE, MOTION, MULTISENSORS, OUTPUT, PLATFORMS, PROCESSING, SIGNALS, SUMMER, WEIGHTING FUNCTIONS

Subject Categories : Optical Detection and Detectors

Distribution Statement : APPROVED FOR PUBLIC RELEASE