Trajectory Encryption Cooperative Salvo Guidance

2025-09-22

AI Summary

To address the vulnerability of highly predictable trajectories to jamming and countermeasures in coordinated salvo interception, this paper proposes a “trajectory encryption” mechanism. It leverages guidance law heterogeneity across unmanned system swarms as an active security design feature, synthesizing diverse, non-repetitive trajectory families via hybrid time-to-go (TTG) estimation and heterogeneous cooperative guidance strategies. This approach significantly expands the feasible solution space for synchronous interception without revealing tactical intent, while enabling dynamic timing adjustment and robust adaptation to varying initial configurations. Simulation results demonstrate that the proposed distributed algorithm achieves high-precision synchronous interception against multiple mobile targets and diverse initial geometries, exhibiting strong resilience to interference, enhanced penetration stealth, and intrinsic trajectory unpredictability.

Technology Category

• Planning, Routing, and Scheduling: Scheduling under Uncertainty
• Intelligent Robots: State Estimation
• Search and Optimization: Sampling/Simulation-based Search

Application Category

• Security and Privacy: Tracking, profiling, and countermeasures against them
• User Modeling, Personalization and Recommendation: Attacks and countermeasures in recommendation systems
• Systems and Infrastructure for Web, Mobile and WoT: Experiences and lessons learnt from Web-based algorithms and system deployments

Abstract

This paper introduces the concept of trajectory encryption in cooperative simultaneous target interception, wherein heterogeneity in guidance principles across a team of unmanned autonomous systems is leveraged as a strategic design feature. By employing a mix of heterogeneous time-to-go formulations leading to a cooperative guidance strategy, the swarm of vehicles is able to generate diverse trajectory families. This diversity expands the feasible solution space for simultaneous target interception, enhances robustness under disturbances, and enables flexible time-to-go adjustments without predictable detouring. From an adversarial perspective, heterogeneity obscures the collective interception intent by preventing straightforward prediction of swarm dynamics, effectively acting as an encryption layer in the trajectory domain. Simulations demonstrate that the swarm of heterogeneous vehicles is able to intercept a moving target simultaneously from a diverse set of initial engagement configurations.

Problem

• Leveraging heterogeneous guidance principles for cooperative target interception
• Expanding solution space and robustness for simultaneous interception missions
• Obscuring collective interception intent through trajectory diversity encryption

Innovation

• Heterogeneous guidance principles for strategic design
• Mixed time-to-go formulations create trajectory diversity
• Trajectory encryption obscures collective interception intent