Journal of Electrical and Computer Engineering

Research Article

Design of IIR Digital Filters with Arbitrary Flatness Using Iterative Quadratic Programming

Table 1

Comparison with [12] in Example 1.
  CPU time (s) Iteration number
Proposed 9 5.622 × 10−5 3.618 × 10−3 0.980 1.334 16
10 1.248 × 10−5 7.741 × 10−4 0.952 0.587 10
11 4.416 × 10−5 6.501 × 10−3 0.890 0.537 10
12 1.098 × 10−4 3.224 × 10−2 0.858 0.510 8
13 2.060 × 10−4 1.146 × 10−1 0.847 0.525 9
Reference [12] 9 2.281 × 10−6 2.657 × 10−5 1.051 0.121 6
10 1.269 × 10−5 7.257 × 10−4 0.953 0.134 6
11 4.608 × 10−5 6.499 × 10−3 0.891 0.124 6
12 1.168 × 10−4 3.238 × 10−2 0.858 0.124 6
13 3.129 × 10−4 1.122 × 10−1 0.846 0.130 6