3 results about "Gravitational wave" patented technology

This application discloses a method and system for real-time inference and parameter inversion of gravitational wave events based on deep learning. The method includes: constructing a physics-instrument dual-manifold decoupled network; extracting physics signal features and instrument noise features from time-frequency spectra; introducing physical manifold constraints and orthogonally decoupling the features in the latent space; performing parameter inversion on the decoupled physics features using a conditionally normalized flow model; and verifying the consistency of the inference results by regenerating the waveform in reverse and analyzing the residuals. This application distinguishes between high-eccentricity gravitational wave signals and detector transient noise, improving recognition accuracy and reducing false alarm rate.

This invention discloses a method, system, and product for estimating the arm length of a Taiji mission considering satellite relative motion compensation. The method includes: reading ephemeris data of key gravitational bodies during the simulation period, establishing the orbital dynamics equations of the satellite formation, solving the equations using a high-precision numerical integration algorithm, and outputting satellite orbit simulation data; generating basic measurements including noise and satellite-to-solar measurements based on the satellite orbit simulation data, and correcting the inter-satellite distance measurements in the basic measurements by optical signal propagation time to achieve satellite relative motion compensation and outputting high-precision observation data; receiving the high-precision observation data, combining it with the orbital dynamics equations of the satellite formation, recursively updating and optimizing the state variables of the satellite formation based on a Kalman filter algorithm, and outputting a high-precision estimate of the inter-satellite arm length; and visualizing the estimated satellite arm length and its error. This invention significantly improves the autonomy and reliability of space gravitational wave detection missions.

This invention discloses a design method for the thermal control system of a primordial gravitational wave detection telescope, belonging to the field of primordial gravitational wave detection technology. The method includes: S1. Preliminarily determining the receiver's main structure, materials, and connection methods based on the detection target; S2. Analyzing system heat leakage and determining the cooling power of the refrigerator; S3. Establishing a thermo-structure coupling model using Comsol and performing temperature field and thermal deformation simulations; S4. Comparing the simulation results with design specifications, and iteratively optimizing if not met; S5. Determining the final thermal control implementation scheme. This invention, through systematic thermal design and multiphysics simulation iteration, effectively reduces system heat leakage, ensures stable operation of the focal plane detector within the 100mK temperature range, and meets structural stress and optical path accuracy requirements, providing a reliable thermal control design method for primordial gravitational wave detection.