Method and apparatus for discriminating with respect to low elevation target objects
AssigneeAutoliv ASP, Inc.
InventorsCharles Thomas Spyropulos, Michael John Paradie, Clyde Maynord Callewaert
Life of this patent
Estimating the term…
Abstract
The invention concerns a method and apparatus for estimating a height of a target object using radar signals reflected from the target object wherein a receiver detects a plurality of radar signals reflected from the target object, respectively, at a plurality of different ranges, resolves the amplitudes of the plurality of reflected signals at the respective plurality of different ranges to generate an amplitude data set, and determining if the amplitude data set correlates to a particular height.
Claims27
A method of estimating a height of a target object using radar signals reflected off of said target object, said method comprising the steps of:
- detecting a plurality of radar signals reflected from said target object, respectively, at a plurality of different ranges;
- resolving amplitudes of said plurality of reflected signals at said respective plurality of different ranges to generate a target object amplitude data set;
- and
- determining if said target object amplitude data set correlates to a particular height for said target object by comparing said target object amplitude data set to a plurality of stored amplitude data sets, each said stored amplitude data set corresponding to data representative of an amplitude data set corresponding to a target object of a particular height.
A computer program product recorded on computer readable medium for estimating a height of a target object using radar signals reflected off of said target object comprising:
- computer executable instructions for resolving amplitudes of a plurality of radar signals reflected from said target object, respectively, at a plurality of different ranges to generate a target object amplitude data set;
- and
- computer executable instructions for determining if said target object amplitude data set correlates to a particular height for said target object;
- and
- computer executable instructions for comparing said target object amplitude data set to a plurality of stored amplitude data, each said stored amplitude data set corresponding to data representative of an amplitude data set corresponding to a target object of a particular height.
A radar system comprising:
- a transmitter for transmitting radar signals;
- a receiver for receiving said radar signals reflected off target objects;
- a processor for resolving amplitudes of said plurality of reflected signals at said respective plurality of different ranges to generate a target object amplitude data set;
- and
- a correlator for determining if said target object amplitude data set correlates to a particular height for said target object;
- and
- a decision circuit for declaring as a height of said target object a height corresponding to a one of said stored amplitude data sets that best matches said target object amplitude data set;
- wherein said correlator compares said target object amplitude data set to a plurality of stored amplitude data sets, each said stored amplitude data set corresponding to data representative of an amplitude data set corresponding to a target object of a particular height.
Dependencies are inferred from the claim text.