Author
Wanchun Chen
Bio: Wanchun Chen is an academic researcher from Beihang University. The author has an hindex of 1, co-authored 1 publications receiving 38 citations.
Papers
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TL;DR: An innovative method based on spectral decomposition for solving a special type of linear system with variable coefficients, where the system matrix can be expressed as the product of a scale function and a constant matrix is proposed.
51 citations
Cited by
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TL;DR: Cooperative guidance strategy for multiple hypersonic gliding vehicles system with flight constraints and cooperative constraints is investigated, where both the attack time and the attack angle constraints are considered simultaneously.
58 citations
TL;DR: A novel stochastic gradient particle swarm optimization (SGPSO) algorithm is proposed, which combines the high-efficiency of gradient search with the randomness of particle swarm search and can realize the rapid optimization of entry trajectory for hypersonic glide vehicles.
49 citations
TL;DR: In this paper, a new entry trajectory generation approach based on rapid planning three-dimensional acceleration profile (TDAP) is proposed, which extends the traditional drag planning approach into three dimensional drag space to accommodate much larger downrange or cross-range, and improves the maneuvering capability by utilizing both angle of attack and bank as primary control commands.
45 citations
Patent•
10 Sep 2014
TL;DR: In this article, a high accuracy longitudinal and cross range analytical prediction method based smooth gliding reentry guidance method was proposed, which can guide the aircraft to fly to assigned height with certain distance far from an object and satisfy the corresponding process constraint, end speed constraint and azimuthal angle error constraint and is good in robustness.
Abstract: A high accuracy longitudinal and cross range analytical prediction method based smooth gliding reentry guidance method comprises step 1, planning a guidance scheme of a rapid descending section; step 2, planning a guidance scheme of a smooth gliding section; step 3, planning a guidance scheme of a trajectory downward pressing section. The invention also provides an energy based analytical solution of the longitudinal range, the cross range and the course angle. A method for solving the analytical solution comprises step 1, establishing a motion equation of a reentry problem of an aircraft; step 2, establishing the process constraint and the terminal constraint of the reentry problem; step 3, introducing a generalized equator and a generalized meridian; step 4, linearizing the motion equation; step 5, solving the analytical solution; step 6, verifying the feasibility of the analytical solution. The high accuracy longitudinal and cross range analytical prediction method based smooth gliding reentry guidance method can guide the aircraft to fly to assigned height with certain distance far from an object and satisfy the corresponding process constraint, end speed constraint and azimuthal angle error constraint and is good in robustness.
34 citations
TL;DR: Results demonstrate that the proposed autonomous entry guidance method has wide applicability, strong robustness, and excellent performance, and its computational efficiency is so high that it sufficiently satisfies the requirement on onboard application.
33 citations