This paper describes and compares the different approaches most commonly used for power spectrum estimation in continuous-time linear adaptive equalizers based on the conventional feedback scheme for Gbps digital communications. In addition, a new equalization approach based on the feedforward topology is proposed. As an example, simulation results demonstrate some advantage of feedforward agai...

CC-BY-NC-ND 4.0 International license peer-reviewed) is the author/funder. It is made available under a The copyright holder for this preprint (which was not. Abstract: Early visual cortical neurons receive highly selective feedforward input, which is amplified or disamplified by contextual feedback and lateral connections. A significant challenge for systems neuroscience is to measure the feat...

At an early stage of learning novel dynamics, changes in muscle activity are mainly due to corrective feedback responses. These feedback contributions to the overall motor command are gradually reduced as feedforward control is learned. The temporary increased use of feedback could arise simply from the large errors in early learning with either unaltered gains or even slightly downregulated ga...

An iterative learning control (ILC) method using both feedback and feedforward actions is proposed for a class of uncertain linear systems to achieve precise tracking control. A sufficient condition for the plant uncertainty and feedback controller, which guarantees the robust convergence of the learning, is given. The procedure of designing the robust algorithm has two steps: At first, the fee...

A new event-based feedforward control method for drug delivery system is presented. Compared with the traditional time-based feedback control, the proposed method shows great potential in dealing with measurement noise and unexpected disturbances. Instead of using time to drive the planner, we determine the reference trajectory with an intelligent event, which is directly derived from measureme...

UNLABELLED The human visual system must extract reliable object information from cluttered visual scenes several times per second, and this temporal constraint has been taken as evidence that the underlying cortical processing must be strictly feedforward. Here we use a novel rapid reinforcement paradigm to probe the temporal dynamics of the neural circuit underlying rapid object shape percepti...