本文设计了一种用于完成QAM数字电视解调芯片中符号及匹配成形功能的奈奎斯特滤波器。
This paper presents a Nyquist filter to perform symbol synchronization and matched filtering in a QAM demodulator for digital television.
并将生成信号经低通滤波器处理，从而最终得到了一个能够充分反映电视图像脉冲性、频率、幅度和带宽特点的较为逼真的信号波形。
After the signal is processed through a low-pass filter, a very realistic waveform is obtained which can show pulsed nature, frequency, amplitude and bandwidth of television picture signals.
本文设计的自适应滤波器主要是应用在电视机中，结合电视机语音控制系统的实际应用给出了设计模型，完成了模型的硬件化实现。
A design model is demonstrated in connection with the real implementation of the system of audio controlling in TV set, and this thesis completes implementing the model on hardware.
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