Patent ID: 6466162
Filing Date: 2002-10-15
Classification: A63B,G01S

Abstract:
A method for accurately measuring distance and direction between two spaced objects in unknown spaced relationship comprising the steps of:a) positioning a first GPS receiver means in juxtaposition to a fixed, undefined location, said fixed, undefined location spaced from a first object of said two objects; b) measuring a first distance and a first direction between said fixed, undefined location and said first object without defining the location of said fixed, undefined location nor the location of said first object; c) positioning a second GPS receiver means in juxtaposition with a second object of said two spaced objects, the locations of said second GPS receiver means and said second object being undefined; d) obtaining a first offset location, offset from said first GPS receiver means by a first offset, by operating said first GPS receiver means for receiving first contaminated location signal data from navigation satellites in orbit above the ear, during a first time period, and translating said first contaminated location signal data into a first location definition, without correcting said first contaminated location signal data, said first location definition defining said first offset location; e) obtaining a second offset location, offset from said second GPS receiver means by said first offset, by operating said second GPS receiver means in synchronism with operation of said first GPS receiver means, for receiving second contaminated location signal data from said navigation satellites in orbit above the earth and translating said second contaminated location signal data into a second location definition, said second location definition defining said second offset location; f) calculating said first location definition and said second location definition into a second distance and a second direction between said first offset location and said second offset location; and g) calculating said first distance and said first direction and said second distance and said second direction into a third distance and a third direction, said third distance and said third direction being the distance and the direction between said first object and said second object.