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提出了一种新型的零符号间干扰无限冲击响应(11R)奈奎斯特滤波品,得到了传递函数的必要和充分条件。提出的11R奈奎斯特滤波器只需频域最佳,提出了使用迭代切比契夫近似的多步最佳化。这种方法能够设计一种新型的具有低阶次的11R奈奎斯特滤波器。例举了30％和15％滚降率的数字例子。从这些例子证实。同常规的有限冲击响应(FIR)奈奎斯特滤波器相比。11R方法可以减少滤波器的阶次和硬件量,对于高Q奈奎斯特滤波器这种方法更加有效。
A new type of zero impulse response infinite impulse response (11R) Nyquist filter is proposed. The necessary and sufficient conditions for the transfer function are obtained. The proposed 11R Nyquist filter requires only the best frequency domain, and proposes a multistep optimization using iteratively sliced-chirp approximation. This method enables the design of a new 11R Nyquist filter with low order. Examples of numerical examples of 30% and 15% roll-off rates are given. Prove from these examples. Compared with the conventional finite impulse response (FIR) Nyquist filter. The 11R method can reduce the order and hardware of the filter, which is more effective for high-Q Nyquist filters.