Research Article
A Novel Design of Sparse FIR Multiple Notch Filters with Tunable Notch Frequencies
Table 1
Nonzero coefficients of the designed filter in Example
1.
| Taps | Nonzero tap weights |
| 0 | 174 | 0.004722848554565 | 24 | 150 | 0.002007423266603 | 33 | 141 | −0.004871513257007 | 38 | 136 | −0.030966811403170 | 39 | 135 | −0.022053492615673 | 40 | 134 | 0.014951595120278 | 41 | 133 | −0.021767842979883 | 42 | 132 | 0.011692029570564 | 43 | 131 | 0.006950807646344 | 44 | 130 | 0.044114166070248 | 45 | 129 | 0.006311408033158 | 46 | 128 | −0.062066578840798 | 47 | 127 | −0.005818521570352 | 48 | 126 | −0.002318412822056 | 49 | 125 | 0.005091217785500 | 50 | 124 | 0.020608511742342 | 51 | 123 | −0.014404626498885 | 52 | 122 | 0.061394774774335 | 53 | 121 | 0.008629427173138 | 54 | 120 | −0.072558769634137 | 55 | 119 | −0.010787517932644 | 56 | 118 | −0.022623175477306 | 57 | 117 | 0.030869196951431 | 58 | 116 | 0.009932536096148 | 59 | 115 | −0.014074814764124 | 60 | 114 | 0.094137780017783 | 61 | 113 | −0.004199271003407 | 62 | 112 | −0.061953987746997 | 63 | 111 | −0.047952288148680 | 64 | 110 | −0.038531961471284 | 65 | 109 | 0.076026372592104 | 66 | 108 | −0.015111106082247 | 67 | 107 | 0.000183867057454 | 68 | 106 | 0.099331267386019 | 69 | 105 | −0.012255378374269 | 70 | 104 | −0.028055658481912 | 71 | 103 | −0.100962624763570 | 72 | 102 | −0.038372777955426 | 73 | 101 | 0.098683027527897 | 74 | 100 | −0.036089958346951 | 75 | 99 | 0.029655283702946 | 76 | 98 | 0.071889586307707 | 77 | 97 | 0.004739347900282 | 78 | 96 | −0.002403828886942 | 79 | 95 | −0.153598792283481 | 80 | 94 | −0.019548891523249 | 81 | 93 | 0.089075079456139 | 82 | 92 | −0.023403440116641 | 83 | 91 | 0.056274737680820 | 84 | 90 | 0.018813444978966 | 85 | 89 | 0.047899881207932 | 86 | 88 | 0.000409323536052 | 87 | | 0.911070614139502 |
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