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| A sampling rate alteration method based on FIR filter with FRM structure |
| Zhang Yuliang; Wu Welling; Tian Baoyu |
| Beijing University of Posts and Telecommunications Beijing 100876 China |
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Abstract In this paper, based on analyzing the relationship between the symmetry of a filter’s transfer function and its impulse response sequence, a class of filter with sparse impulse response coefficients is presented. Using this class of filter as the prototype filter, the computational complexity of a FIR filter realized with FRM technique is further reduced. Then, the sampling rate alteration method based on FIR filter with FR.M structure, its architecture, computational complexity and the problem in designing are studied. Finally, this sampling rate alteration method is proved to be efficiency with examples.
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Received: 17 January 2002
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2003, Vol. 25 
