A DSP system (Figure 2.37) is given with the following specifications:
Design requirements:
• Sampling rate 20,000 Hz
• Maximum allowable gain variation from 0 to 4,000 Hz ¼ 2 dB
• 40 dB rejection at a frequency of 16,000 Hz
• Butterworth filter.
Determine the cutoff frequency and order for the anti-image filter.
