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Exhaustive Approach for Multistage Filter Design to Minimize Complexity of FIR Filter for WCDMA Applications
Sudhir Kumar Madhi1, V Jayaprakasan2, Pandya Vyomal3

1Sudhir Kumar Madhi, Department of ECE, Sreenidhi Institute of Science & Technology, Hyderabad, (Telangana), India.
2V Jayaprakasan, Department of ECE, Sreenidhi Institute of Science & Technology, Hyderabad, (Telangana), India.
3Pandya Vyomal, Department of ECE, Sreenidhi Institute of Science & Technology, Hyderabad, (Telangana), India.

Manuscript received on 23 March 2019 | Revised Manuscript received on 30 March 2019 | Manuscript published on 30 March 2019 | PP: 1873-1879 | Volume-7 Issue-6, March 2019 | Retrieval Number: F2834037619/19©BEIESP
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)

Abstract: In this paper we introduce a new multistage filter design to implement a decimation filter for WCDMA applications. Here we use a low pass filter to design our decimation structure. Among all the window techniques the worthy window for any application is the Kaiser window and in filtering methods linear phase equiripple FIR filter dominates the remaining filters. So, in this paper we choose Kaiser Window and equiripple technique for the design of decimation filter. For these two filters performance analysis is done in terms of pass band ripples, length of filter, number of multipliers, number of adders, number of states, multiplications per input sample, Additions per inpsut sample are compared with respect to single stage filter design. For single stage filter design the order of the filter is very high so, our attempt is to try various exhaustive combinations of multistage design and prove which design is the worthy multi stage approach among all the combinations by considering the parameters like filter order, complexity and multiplication rate at the output
Keywords: Multistage filter design, WCDMA, Kaiser window, equiripple FIR Filter
Scope of the Article: Standards for IoT Applications