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題 名 | On Cyclostationary Adaptive Lattice Filters=週期性靜定程序之適應性格型濾波器 |
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作 者 | 江高飛; | 書刊名 | 南臺工商專校學報 |
卷 期 | 20 1994.11[民83.11] |
頁 次 | 頁1-9 |
分類號 | 448.533 |
關鍵詞 | 週期相關性靜定程序; 適應程序; 參數; 控制法與穩定分析; Cyclostationary process adaptive process parameter control and stability analysis; |
語 文 | 英文(English) |
中文摘要 | 針對傳統適應性格型濾波器僅能適應小幅度時變之缺點,本文旨在研究適應性格 型濾波器適應困難環境之時變態。輸入狀態含週期相關性靜定程序,可導致適應程序之非正 常運作。換言之,可導致適應目標之巨大誤差。為求解決上述問題,首先需對格型濾波模式 之快變化訊號與慢變化參數,予以分離。繼而尋找在逐步適應過程方法中,訊號及參數相對 穩定度範圍。配合矩陣型結構,以橫行掌握時變,縱烈克服滲入之不連續頻譜而達到快速運 算及超大型積體電路之簡化模式。大自然界中,週期性物理現象,普遍存在。研究週期性靜 定程序比較一般靜定程序之討論,將更能適應實際情況。 |
英文摘要 | We propose to develop a robust adaptive estimation methodology by extending the family of lattice form estimation techniques (lattice model [Lev-Ari, 1984]) to include periodically time variant parameters. This will result in a combination of the structural and numerical advantages of the lattice configuration with the capability of modeling system dynamics by constant or slow variation of PARCOR parameter. The new lattice filter configuration is well suited for various specific models of space time processing, which is essential to overcome the effects of background disturbances in low SNR conditions. Space-time processing translates in our case to multichannel (vector) adaptive estimation, which is easily implemented in block lattice form. Moreover, the multichannel configuration can be transformed into a regular modular architecture, known as a systolic array, which is particularly suitable for implementation in VLSI hardware. |
本系統中英文摘要資訊取自各篇刊載內容。