US 2006/0136172 A1 · Method for modeling detection of camouflaged targets

Abstract

The methods for determining the probability of detection of a thermally camouflaged target at various ranges by the sensor includes determining an “inherent” temperature difference, ΔTRSS, between the target and its immediate surroundings. Once ΔTRSS is determined, a scaled N50 cycle criterion, or the number of resolvable cycles needed by the sensor for a fifty percent probability of detection, is determined according to the relationship N50=A/(ΔTRSS)B+C, where A, B and C are constants that are predetermined according to whether the immediate surroundings are of a woodland or a littoral nature. The scaled N50 cycle criterion is then used in an empirical Target Transfer Probability Function (TTPF) defined by P=(N/N50)E/(1+(N/N50)E), where E=2.7+0.7(N/N50), in order to determine the probability of detection of the thermally camouflaged target.

Claims9

Dependent claims

A method for assessing the detection probability of a camouflaged target by a given sensor at a given range R, comprising the steps of:

A) determining the cycles resolved on the target (N) for said sensor as the number of equivalent cycles resolved by the sensor with its apparent thermal contrast;
B) defining a variable N50 as the cycle criterion required for a fifty percent (50%) probability of detection of said object;
C) determining the inherent ΔTRSS of the camouflaged target;
D) scaling the result of step B) according to the relationship
N
50
=
A
(
Δ
⁢
⁢
T
RSS
)
B
+
C
,
where A, B and C are predetermined constants;
and
E) determining the probability P of detection according to the relationship:
P=(N/N50)E/(1+(N/N50)E),
where E=2.7+0.7(N/N50).

21 more elements

Dependencies are inferred from the claim text.

Method for modeling detection of camouflaged targets

Life of this patent

Method for modeling detection of camouflaged targets

Life of this patent

Abstract

Claims9