EEE6209 EEE6209 1 DEPT. OF ELECTRONIC AND ELECTRICAL ENGINEERING EEE6209 Advanced Signal Processing Grading Assessment Spring 2020-21- Question 2 Question 2 a. How would you use moving average filters (MAF) as one of the filters in a 2-channel maximally decimated perfectly reconstructing orthonormal 1-D signal filter bank? What would be the effect on the other filters in the analysis and synthesis filter banks. In your answer you should provide the following: - The frequency domain representation of the filter bank. - The relevant time/frequency domain criteria used for the design of the filter bank. - The resulting filter coefficients. - The verification of satisfying the orthonormal and perfect reconstruction conditions. - Justification of the available design choices. - Any assumptions that you are using in the evaluation. - Evaluate any advantages/disadvantages of the design choices. - Conclusions on the appropriateness of MAFs as a filter in this application. (60 marks) b. You have been given a 2-channel maximally decimated perfectly reconstructing orthonormal 1-D signal filter bank consisting of filters of length 2. You are required to design a system for reducing the sampling rate of a 2-D signal (an image) by a factor of 2 using this filter bank. In your response you should provide the following: - The time/frequency domain representations of the filter bank. - The proposed design and any suggest any changes for filters or the filter bank. - Justification of your design decisions. - Any assumptions that you are using within the design. - Evaluate any advantages/disadvantages of the design. - Conclusions on the appropriateness of this design as a good decimator. (40 marks) GCKA/EAB








































学霸联盟