Finite Impulse Response Filter Design - Digital Signal Processing: Fundamentals and Applications - page 266

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Frequency (Hz)

FIGURE 7.31
Frequency responses using the frequency sampling method in Example 7.13.

Table 7.12 FIR Filter Coefficients in Example 7.13
(frequency sampling method)

B2: FIR Filter
Coefficients B1: FIR Filter Coefficients

b ¼ b ¼ 0.027436 b ¼ b ¼ 0.001939 0 24 0 24

b 1 ¼ b 23 ¼0.031376 b 1 ¼ b 23 ¼ 0.003676

b 2 ¼ b 22 ¼0.024721 b 2 ¼ b 22 ¼0.012361

b 3 ¼ b 21 ¼ 0.037326 b 3 ¼ b 21 ¼0.002359

b 4 ¼ b 20 ¼ 0.022823 b 4 ¼ b 20 ¼ 0.025335

b 5 ¼ b 19 ¼0.046973 b 5 ¼ b 19 ¼0.008229

b 6 ¼ b 18 ¼ 0.021511 b 6 ¼ b 18 ¼ 0.038542

b 7 ¼ b 17 ¼ 0.064721 b 7 ¼ b 17 ¼ 0.032361

b 8 ¼ b 16 ¼ 0.020649 b 8 ¼ b 16 ¼ 0.049808

b 9 ¼ b 15 ¼ 0.106734 b 9 ¼ b 15 ¼ 0.085301

b 10 ¼ b 14 ¼ 0.020159 b 10 ¼ b 14 ¼ 0.057350

b 11 ¼ b 13 ¼ 0.318519 b 11 ¼ b 13 ¼ 0.311024

b 12 ¼ 0.520000 b 12 ¼ 0.560000