Space Engineering University

High-EfficiencyFiber Laser Generating up to 528th-OrderOrbital Angular Momentum Light

Abstract Structured light lasers carrying orbital angular momentum (OAM) have demonstrated considerable potential across diverse research fields and practical applications. Despite great progress in exploring this new degree of freedom of light, it remains challenging to achieve...

Rydberg-Atom-Based Angle-of-Arrival Estimation Method for Ku-Band Microwave Signals

The determination of the angle of arrival (AoA) of Ku-band microwave signals is of great significance in satellite communications, spectrum monitoring, and national defense security, which has created an urgent demand for high-precision and interference-resistant passive detectio...

Suppression of NF-κB signaling by Ganoderma-Rhodiola compound preparation alleviates immune dysregulation in a rat model of simulated microgravity

Background The extreme environment of spaceflight facilitates the increased pathogenicity of microorganisms while simultaneously compromising the immune systems of astronauts, thereby escalating the risk of infections and threatening mission safety. Effective countermeasures to b...

Global Optimization Design of Large-Scale Constellations for Maritime Target Detection Based on Circular Scanning Radar

Traditional Low Earth Orbit (LEO) satellite constellation design methods, primarily driven by geometric coverage, fail to satisfy the non-uniform and dynamic tracking requirements of moving targets. To address this, a multi-objective optimization framework for large-scale satelli...