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本文详细考察了用数字微分分析器(DDA)构成的增量调制数字横向滤波器结构,导出了该滤波器性能的计算公式,并与常规数字滤波器进行了比较。最后,给出了对于一特殊低通滤波器设计的例子。上述结果皆为广泛的计算机模拟所证实。
In this paper, the architecture of delta-modulated digital transversal filter with digital differential analyzer (DDA) is investigated in detail. The formula for calculating the performance of the filter is derived and compared with the conventional digital filter. Finally, an example of the design of a special low-pass filter is given. The above results are confirmed by a wide range of computer simulations.