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

01740.004722848554565
241500.002007423266603
33141−0.004871513257007
38136−0.030966811403170
39135−0.022053492615673
401340.014951595120278
41133−0.021767842979883
421320.011692029570564
431310.006950807646344
441300.044114166070248
451290.006311408033158
46128−0.062066578840798
47127−0.005818521570352
48126−0.002318412822056
491250.005091217785500
501240.020608511742342
51123−0.014404626498885
521220.061394774774335
531210.008629427173138
54120−0.072558769634137
55119−0.010787517932644
56118−0.022623175477306
571170.030869196951431
581160.009932536096148
59115−0.014074814764124
601140.094137780017783
61113−0.004199271003407
62112−0.061953987746997
63111−0.047952288148680
64110−0.038531961471284
651090.076026372592104
66108−0.015111106082247
671070.000183867057454
681060.099331267386019
69105−0.012255378374269
70104−0.028055658481912
71103−0.100962624763570
72102−0.038372777955426
731010.098683027527897
74100−0.036089958346951
75990.029655283702946
76980.071889586307707
77970.004739347900282
7896−0.002403828886942
7995−0.153598792283481
8094−0.019548891523249
81930.089075079456139
8292−0.023403440116641
83910.056274737680820
84900.018813444978966
85890.047899881207932
86880.000409323536052
870.911070614139502