The paper is to design analogue lowpass filtering circuits with high performances . the circuits are used directly as anti - alias filters in an analogue front - end of video decoder ic ( integrated circuit ) <中文摘要> =本文旨在設計高性能的模擬低通濾波電路,用作視頻解碼芯片模擬前端中的抗混疊濾波器。
The field of video signal processing is now undergoing a digital reform . the digital processing technique is clearly expatiated in this paper , such as a / d convert , anti - alias filter , clamp control , gain control , pll , synchronization circuit , color decoder , comb filters 本文詳細敘述了視頻圖像的數字處理方法,重點介紹了視頻信號數字化技術、抗混疊濾波器、箝位、增益控制、鎖相技術、同步時鐘產生、電視信號亮色分離、彩色解碼等技術,這些關鍵技術為視頻信號的數字化處理提供了重要的基礎。