4 results about "Periodic orbits" patented technology

This invention discloses a high-precision periodic orbit maintenance method based on maintenance point rolling optimization, relating to the field of spacecraft orbit control and orbit maintenance technology. Based on a high-precision ephemeris dynamics model, it constructs a maintenance point rolling prediction mechanism, a navigation and execution error model, and a least-squares orbit correction strategy under multi-path point constraints. This application uses the above method to achieve high-precision, low-energy-consumption, and highly robust long-term maintenance of a spacecraft's periodic orbit in a realistic multi-body perturbation environment.

The application discloses a design method of a high-mobility stealth satellite communication system and relates to the technical field of satellite communication. The application comprises the following steps: step a: system silence and state presetting: a control center makes a satellite of a space segment enter an electromagnetic silence state, a satellite platform starts surface thermal management and retracts a protruding structure, and an orbit maneuver with no fixed period is planned and executed. The application improves the concealment and survivability of the satellite platform in orbit. By making the satellite enter a silence and survival state and implementing thermal management and shape control, combined with the orbit maneuver with no fixed period, the physical and orbit characteristics of the satellite are difficult to be observed and predicted for a long time, traditional detection and tracking means based on a fixed shape and a periodic orbit are invalid, and exposure risk of space assets is controlled. Meanwhile, communication adopts a "zero handshake" burst access mechanism based on one-time instructions, and open signaling interaction in a link establishment process is completely eliminated.

A gravitational mechanical energy generator comprises a dynamic load lifting system (DLLS) for periodic track arc rotations. The system comprises a motor 1 and a flywheel 2 so that energy can be supp

The invention discloses a design method of a high-maneuverability stealth satellite communication system, and relates to the technical field of satellite communication. The method comprises the following steps: step a, system silent latent and state presetting: a control center enables a satellite in a space section to enter an electromagnetic silent state, a satellite platform starts surface thermal management and retracts a protruding structure, and meanwhile, orbital maneuver without a fixed period is planned and executed; according to the method, the concealment and survivability of the satellite platform existing in orbit are improved, the satellite enters the silent latent state, thermal management and appearance control are implemented, and in combination with orbit maneuver without a fixed period, the physical and orbit characteristics of the satellite are difficult to be stably observed and predicted for a long time; a traditional detection tracking means based on a fixed shape and a periodic track loses efficacy, the exposure risk of space assets is controlled, meanwhile, communication adopts a'zero handshake 'burst access mechanism based on a one-time instruction, and public signaling interaction in the link establishment process is thoroughly eliminated.