Optimal rescue orbital elements online decision-making method based on RBFNN for launch vehicles under thrust drop fault

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12242962
APP PUB NO 20220147820A1
SERIAL NO

17330790

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

An optimal rescue orbital elements online decision-making method based on RBFNN for launch vehicles under thrust drop fault includes establishing the flight dynamic equations of launch vehicles in the second-stage ascending phase in the geocentric inertial coordinate system, to construct a series of optimization problems of maximum semi-major axis of circular orbit under the thrust drop fault. The method further includes using the adaptive pseudo-spectrum method to solve the optimization problems of maximum semi-major, and using the maximum and minimum method to normalize the sample data to [−1, 1], using the orthogonal least square method to select the data center of the radial basis function neural network (RBFNN), where the Gaussian function is selected as the radial basis function, and the RBFNN is trained offline to establish a nonlinear mapping relationship from the fault states to the optimal rescue orbital elements.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

  • DALIAN UNIVERSITY OF TECHNOLOGY

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
He, Xiao Dalian, CN 60 444
Tan, Shujun Dalian, CN 3 2
Wu, Zhigang Dalian, CN 38 129
Zhang, Liyong Dalian, CN 5 243

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
3.5 Year Payment $1600.00 $800.00 $400.00 Sep 4, 2028
7.5 Year Payment $3600.00 $1800.00 $900.00 Sep 4, 2032
11.5 Year Payment $7400.00 $3700.00 $1850.00 Sep 4, 2036
Fee Large entity fee small entity fee micro entity fee
Surcharge - 3.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 7.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00