This article proposes a new incremental model predictive control (IMPC) strategy, which allows for constrained of robot manipulator, while the resulting is derived without concrete mathematical system model. First, to reduce dependence on nominal manipulators, continuous-time nonlinear approximated by an using time-delay estimation (TDE). Then, based system, tracking IMPC designed in framework ...

Abstract The number of devices equipped with global satellite positioning has exceeded seven billion recently. There are a wide variety receivers regarding their accuracy and reliability. Low cost, multi-frequency units have been released on the market latterly; however, single-frequency is still significant. Since measurements influenced by ionospheric delay, accurate ionosphere models utmost ...

Due to the sparse distribution of reflectors in space, wireless channels are commonly sparse. Thus, utilizing the sparsity of channels in the delay-Doppler domain, a channel estimation method based on compressed sensing (CS) theory can reduce the number of pilots. However, because of discrete truncation in the time domain and limited bandwidth, the time delay and frequency shift of non-integer ...