Design of multiplierless CIC compensators based on maximum passband deviation

Correction to: Design of Wideband CIC Compensator Based on Particle Swarm Optimization

“…The main work of our article is the improvement in integer programming for compensator design. Different bit-lengths of fractional part are simulated when we compare proposed compensators with Dolecek et al [1] and Molnar et al [3], and we discussed the impact on optimum passband deviation caused by different bit-lengths of fraction part (as shown in Fig. 5).…”

“…2. Our model is mainly based on the work of Molnar et al [3], but there are some problems when the BB algorithm (used in [3]) is applied to the model. This is explained in detail in our article.…”

Optimum multiplierless compensators for sharpened cascaded‐integrator‐comb decimation filters

“…The compensators for CIC filters have been extensively studied for almost two decades (see [8][9][10][11] and the references therein). On the other hand, the compensators for SCIC filters have been introduced recently [12].…”

“…In both designs, it was found that the compensators with odd number of coefficients improve the response within a wider band than do the compensators with even number of coefficients. Furthermore, it was found that compensators with three [9,10,12] and five [9][10][11][12] coefficients usually suffice. Finally, most of these compensators were realised with coefficients expressed as sums of signed-power-of-two (SPT) terms, resulting in multiplierless structures.…”

“…The compensators with L = 3 and B = 2 as well as with L = 5 and B = 3 correspond to the compensators described in [10]. The compensator with L = 3 in [9] provides the deviation of 0.76 dB by using four adders. However, the proposed compensator with L = 3 and B = 3 ensures similar deviation by employing one adder less.…”