Cooperative Intercept Guidance of Multiple Aircraft with a Lure Role Included

Abstract

When threatened by a pursuer, an evading aircraft launches two defenders to accomplish a cooperative evasion, constituting a fouraircraft interception engagement. Under the assumption that the pursuing aircraft adopts the augmented proportional guidance law and first-order dynamics, a cooperative intercept mathematical model with an intercept angle constraint is established, allowing for the cooperative maneuvering of the evader. Based on the differential linear matrix inequality (DLMI), a controller design method of input and output finite time stability (IO-FTS) is proposed and applied to the aircraft's cooperative intercept scenario. A cooperation performance analysis is carried out for two cases: (1) two defenders intercept the pursuer with various intercept angle constraints, and (2) the evader acts in a lure role to cooperate with two defenders. The simulation results indicate that the proposed method of controller design has the ability to guarantee that the two defenders intercept the pursuer at the preassigned intercept angles. The cooperative intercept scenario with a lure role is shown to be a very effective method for reducing the maximum required acceleration for defenders, which confirms the availability and advantage of cooperation. The strong adaptability and robustness of the cooperative guidance law with respect to various initial launch conditions is also verified.

Cooperative Guidance Considering Detection Configuration Against Target With a Decoy

“…Combined with (14), the measurement equation of the pursuer can be obtained as (22) where, H = 1 0 0 0 , Remark 3: From the below (23) and (24), as shown at the bottom of this page, it can be seen that when the separation angle λ PiE − λ PjE between the two pursuers and the evader decreases, the measurement variance of the lateral displacement y i will increase, resulting in a decrease in the accuracy of state estimation. Therefore, in designing the guidance law, it is necessary to control the separation angle between the two pursuers and the evader at the appropriate stage.…”

“…When the distance information is combined with cooperative angle measurement of multiple aircraft [7], the relative distance between the multiple aircraft and the target cannot be estimated when they are collinear, and the estimation error is very large when they are approximately collinear. Therefore, the problem of detection configuration [7], [8], [12]- [14] should also be considered in the process of multi-interceptor guidance design.…”

Finite–Time Output Stability of Impulse Switching System With Norm–Bounded State Constraint

“…In view of the above analysis, this study extends the finite-time theory to a SLS, and conduct the stability analysis of both states and output concurrently, which is the conspicuous improvement compared with the results derived in the current study. As a matter of fact, solving the problem of the SLS satisfying both the FTB and FTOS can allow practical engineering applications to be better achieved [32]- [34].…”

Evasion-Pursuit Strategy against Defended Aircraft Based on Differential Game Theory

“…The dominance regions were presented and analyzed to provide a complete solution to the game. Unlike previous research, two defenders were launched from the target to protect itself [22,23]. In Reference [23], the cooperation between the defenders and the target was one-way which meant one defender received the information from the target and another defender sent information to the target.…”