The standard way to achieve offset-free tracking in MPC is to add the disturbance dynamics to the prediction model and then use an observer to estimate the real disturbance. Existing algorithms only consider piecewise constant signals, while in practice it is often desirable to have a wider choice of reference and disturbance dynamics, such as sinusoids and ramps. This work provides a generaliz...

Model-free unconstrained real-time optimization can be realized by controlling the gradient to zero. In this paper, the multiunit optimization framework is used where the gradient is estimated using finite difference between two identical units operating with an offset. It has been recently shown that the global optimization is achieved by reducing this offset to zero for scalar nonlinear maps....

The emergence of corona virus (COVID-19) has create a great public concern as the outbreak is still ongoing and government are taking actions such as holiday extension, travel restriction, temporary closure of public work place, borders, schools, quarantine/isolation, social distancing and so on. To mitigate the spread, we proposed and analyzed a stochastic model for the continue spread of coro...

We present a novel technique for the direct rendering of offset surfaces for polygonal meshes. The visible part of the offset surface of each triangle, defined as the union of three spheres, three cylinders and a prism, is constructed in a shader program utilizing the geometry shader. Our method creates exact offset surfaces, up to pixel resolution. Possible applications are real-time visualiza...

Orthogonal frequency division multiplexing (OFDM) is a strong candidate for the next generation wireless communication. But the frequency offset between the local oscillators at the transmitter and receiver causes a single frequency offset in the signal, while a time-varying channel can cause a spread of frequency offsets known as the Doppler spread. Frequency offsets ruin the orthogonal of OFD...

We present a generic construction for constant-round concurrently sound resettable zero-knowledge (rZK-CS) arguments for NP in the bare public-key (BPK) model under any (sub-exponentially strong) one-way function (OWF), which is a traditional assumption in this area. The generic construction in turn allows round-optimal implementation for NP still under general assumptions, and can be converted...