高速滑翔飞行器时空协同再入制导

To address low time-coordination precision and spatial-coordination difficulties during the gliding phase of hypersonic gliding vehicles，an analytical predictor-corrector spatiotemporal coordination reentry guidance method is proposed. In longitudinal guidance，time constraints are satisfied by adjusting bank angle magnitude，while a high-precision analytical solution for remaining flight time is derived to predict flight duration. Range and time constraints are transformed into terminal velocity constraints through online correction of desired terminal velocity，yielding bank angle magnitude commands. For lateral guidance，heading angle constraints are met by adjusting bank angle sign. Bank reversals are planned during heading adjustment to align the vehicle with the target point at the desired heading angle，while heading maintenance is achieved through heading angle error corridor methods during the holding phase. Numerical simulations demonstrate that the guidance law effectively regulates flight time and terminal heading angle，robustly guiding multiple vehicles to simultaneously reach the target point with specific heading angles. The method exhibits strong robustness and computational efficiency，validated through comparative analysis with existing approaches. All descriptions maintain third-person passive voice，general present tense，and technical precision，adhering to academic standards without first-person references.