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Abstract
Efficient weapon threat assignment reflects military proficiency and requires prompt decision while managing the available resources. An important problem which commanders/decision makers face is to optimally utilize the resources in complex and time constraints situations. Several solutions have been proposed in the literature. In this paper, an innovative approach is proposed for threat evaluation and weapon assignment (TEWA) by following 3-dimensional stable marriage algorithm (3-D SMA). This proposed model incorporates new parameters and constraints i.e. supply chain, inventory of resources and multiple threats-weapons assignments that outperforms the previous techniques. This suggested model is based on threat perception followed by an integration of parametric based automatic threat evaluation technique for further weapon scheduling and assignment problem keeping in view that the threat with greater threat index has higher priority to be intercepted and weapons’ kill probability. The experimental section shows that our proposed approach has greatly improved in comparison with other approaches. The results showed that the threat neutralization is improved up to 25% reducing the usage of ammunition till 31.1%. The damage of assets abridged to 28.5% in comparison with existing approaches. The proposed approach elucidates that TEWA is an efficient real-time threat perception and optimal multi-threat scheduling problem at weapons’ resolution. It is a three-stage process, where the first stage perceives the threat, the second stage works on threat evaluation and the final stage focuses on weapon scheduling and assignment problem. The addition of new parameters and constraints in the new proposed model makes it a unique approach in which more accurate results, in neutralizing the threats, are obtained with less use of ammunition and damage of assets that makes TEWA more effective and efficient tool for optimum decision making in time critical situations.
| VAj | = | Set of vulnerable assets |
| e | = | Total number of vulnerable assets |
| Tn | = | Set of threats |
| F | = | Total number of threats |
| u | = | Weight assigned to parameters |
| v | = | Weight assigned to parameters |
| kp | = | Kill probability |
| T(d) | = | Distance of threat from asset |
| T(ht) | = | Height of threat |
| T(h) | = | Heading vector of threat |
| T(m) | = | Maneuvering of threat |
| T(f) | = | Threat formation |
| T(l) | = | Threat lethality |
| Tv | = | Threshold value |
| ATi | = | Approaching time of a specific threat |
| Vi | = | Velocity of approaching threat |
| II | = | Intent index of a threat |
| CI | = | Capability index of a threat |
| Wk | = | Set of weapons |
| m | = | Total number of weapons |
| Qs | = | Set of maximum suitable available weapons |
| TI(i) | = | Threat index value of threat i |
| DW | = | Deployed weapons |
| WS | = | Scheduling of weapons |
| ME | = | Multiple engagements of weapons |
| MWA | = | Multiple weapon assignment of weapons |
| Ld | = | Load on deployed weapons |
| LT | = | Threshold of a weapon |
| ∆t | = | Least possible time required to engage successive threats |
| rlt | = | Reload time (weapon) |
| stb | = | Stabilization time (weapon) |
| mov | = | Time entails to move from one threat POE to another threats POE |
| WIC | = | Weapon/ammunition in inventory check |
| VAj | = | Set of vulnerable assets |
| e | = | Total number of vulnerable assets |
| Tn | = | Set of threats |
| F | = | Total number of threats |
| u | = | Weight assigned to parameters |
| v | = | Weight assigned to parameters |
| kp | = | Kill probability |
| T(d) | = | Distance of threat from asset |
| T(ht) | = | Height of threat |
| T(h) | = | Heading vector of threat |
| T(m) | = | Maneuvering of threat |
| T(f) | = | Threat formation |
| T(l) | = | Threat lethality |
| Tv | = | Threshold value |
| ATi | = | Approaching time of a specific threat |
| Vi | = | Velocity of approaching threat |
| II | = | Intent index of a threat |
| CI | = | Capability index of a threat |
| Wk | = | Set of weapons |
| m | = | Total number of weapons |
| Qs | = | Set of maximum suitable available weapons |
| TI(i) | = | Threat index value of threat i |
| DW | = | Deployed weapons |
| WS | = | Scheduling of weapons |
| ME | = | Multiple engagements of weapons |
| MWA | = | Multiple weapon assignment of weapons |
| Ld | = | Load on deployed weapons |
| LT | = | Threshold of a weapon |
| ∆t | = | Least possible time required to engage successive threats |
| rlt | = | Reload time (weapon) |
| stb | = | Stabilization time (weapon) |
| mov | = | Time entails to move from one threat POE to another threats POE |
| WIC | = | Weapon/ammunition in inventory check |