NGHIÊN CỨU VÀ ÁP DỤNG THUẬT TOÁN XẤP XỈ CHUẨN HANKEL TỐI ƯU ĐỂ GIẢM BẬC CHO HỆ MIMO BẬC CAO

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Tác giả: Thanh Tùng Nguyễn, Thị Thu Hiền Nguyễn, Thùy Dung Nguyễn

Ngôn ngữ: vie

Ký hiệu phân loại:

Thông tin xuất bản: Tạp chí Khoa học và Công nghệ - Đại học Thái Nguyên, 2023

Mô tả vật lý: tr.118 - 125

Bộ sưu tập: Metadata

ID: 339785

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The Optimal Hankel Norm Approximation (OHkNA) algorithm plays an important role in reducing the order of the Multi-Input Multi-Output (MIMO) systems. By reducing the order of the system, the OHkNA algorithm simplifies the system's design and performance. One of the advantages of OHkNA is its ability to achieve a good balance between the reduction of the system order and the preservation of its important features. In order to verify its effectiveness, we have studied and applied this algorithm to a 4-input, 4-output MIMO system of order 14, and the simulation results were analyzed. The results indicate that the system reduces to order 8 and exhibits good response in both time and frequency domains. Additionally, the error of order reduction is very small, indicating that the Optimal Hankel Norm Approximation algorithm is an efficient method for reducing the order of the MIMO system. Overall, the algorithm's ability to reduce the order of the MIMO system while maintaining system performance makes it a valuable tool in the field of control engineering, signal processing, simulation, and communication systems.Thuật toán Xấp xỉ chuẩn Hakel tối ưu (OHkNA) đóng một vai trò quan trọng trong việc giảm bậc của các hệ Đa đầu vào-Đa đầu ra (MIMO). Việc giảm bậc của hệ thống bằng OHkNA giúp đơn giản hóa thiết kế và tăng hiệu suất của hệ thống. Một trong những ưu điểm của OHkNA là khả năng đạt được sự cân bằng tốt giữa việc giảm bậc hệ thống và bảo tồn các đặc điểm quan trọng của nó. Để xác nhận tính hiệu quả của OHkNA, chúng tôi đã nghiên cứu và áp dụng thuật toán này vào một hệ MIMO 4 đầu vào, 4 đầu ra bậc 14 và phân tích kết quả mô phỏng. Kết quả cho thấy hệ thống giảm bậc xuống 8 và cho thấy phản hồi tốt cả ở miền thời gian và tần số. Ngoài ra, sai số giảm bậc rất nhỏ, cho thấy thuật toán OHkNA là một phương pháp hiệu quả để giảm bậc của hệ MIMO. Tổng thể, khả năng giảm bậc của hệ MIMO của thuật toán OHkNA trong khi vẫn giữ được hiệu suất hệ thống khiến nó trở thành một công cụ quý giá trong lĩnh vực kỹ thuật điều khiển, xử lý tín hiệu, mô phỏng và hệ thống truyền thông.

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