2 results about "Poisson point process" patented technology

The application belongs to the field of aerospace engineering, and discloses a kind of aircraft design space reconstruction method based on multidisciplinary primary and secondary separation manifold dimension reduction, comprising: constructing high-dimensional initial design space using parameterization method, constructing initial design sample set and target physical response set;Total variance is decomposed according to design variables and their interaction of each order, and the physical primary variable and secondary variable are screened based on total effect index;Maximum likelihood estimation method is applied to secondary variable space, and local intrinsic dimension analytical solution is obtained through homogeneous Poisson process modeling and nearest neighbor discretization to determine the target potential space dimension;Construct high-performance sample subset;t-SNE algorithm is used to construct Gaussian joint probability distribution and iterative mapping to obtain secondary potential feature vector;The comprehensive design space is constructed by fusing the physical primary space and the secondary potential feature vector, and the optimization algorithm and the proxy model are used for optimization.The application realizes extremely low-dimensional space reconstruction while retaining the core physical characteristics.

The application provides a radar radiation power control method, device and equipment based on MPC. The method comprises the following steps: establishing a target model; the target model comprises a target radiation model and a target state model, wherein the process of the target radiation signal is subject to a Poisson process; under a radar networking architecture, a measurement model is constructed through the target state model; at a preset decision time, the measurement model, an MPC algorithm and a PCRLB are used to measure tracking accuracy, and it is judged whether the center station in the radar networking architecture needs to be tracked actively and a radar radiation control result is obtained. In the application, the tracking accuracy and the anti-interference capability are effectively improved by combining the target radiation model, the target state model and the measurement model, the MPC algorithm and the PCRLB are used to measure the tracking accuracy on this basis, the optimization of the active tracking decision process is realized, and the resource utilization rate and the tracking effect are improved.