Research Article

Research on Dynamic Weapon Target Assignment Based on Cross-Entropy

Table 1

Notation description.

n: number of targets, J is the target set and , target j () represents the j-th target
n + 1: hypothetical target, is the target set and
m: number of weapon types, W is the weapon set and , weapon i () represents the type of weapon
T: final combat stage, t represents the t stage and
K: number of the resource types, k represents the k-th kind of resource and
: combat ability value of target j at stage t
: unit cost of weapon i
: inventory quantity of weapon i at stage t
: decision vector at stage t, is the i-th decision variable
: auxiliary function of decision variable at stage t
: auxiliary function of combat feasibility at stage t
: resources matrix of targets at stage t
: resource matrix of weapons at stage t
: kill probability matrix at stage t
: cost of consumed weapons at stage t
: combat ability values of targets at stage t
: objective function at stage t
, : weight parameters
: expected combat purpose
: optimum solution and is the corresponding objective function value
: iteration number of CE method, and is the iteration number of CE method at stage t
D: iteration number of GA and PSO method
Num: population size of GA and PSO method
NMC: sample size of MC method