We present a novel analog checker that adjusts dynamically the error threshold to the magnitude of its input signals. We demonstrate that this property is crucial for accurate concurrent error detection in analog circuits. Dynamic error threshold adjustment is achieved by regulating the bias point of the output stage inverters of the checker, which provide a digital indication of potential erro...

This paper proposes VHDL-AMS syntax extensions that enable descriptions of AMS systems with partial differential equations. We named the extended language VHDL-AMSP. An important specific need for such extensions arises from the well known MEMS modelling difficulties where complex digital and analogue electronics interfaces with distributed mechanical systems. The new syntax allows descriptions...

We propose a biologically inspired nervous system for an autonomous mobile agent. Individual neural cell dynamics exhibit a high degree of fidelity to their biological counterparts, omitting the simplifying assumptions usually taken by computational neural networks. In order to further duplicate a biological system that operates in continuous time, our implementation is strictly through analog ...

Recently, the marginalized particle filter (MPF) has been applied to blind symbol detection problems over selective fading channels. The MPF can ease the computational burden of the standard particle filter (PF) while offering better estimates compared with the standard PF. In this paper, we investigate the application of the blind MPF detector to more realistic situations where the systems suf...

Low-cost testing of Analogue and Mixed-Signal (AMS) cores requires avoiding the use of expensive AMS testers. Testing AMS cores using a digital tester can be achieved by generating on-chip, from digital seeds, the analogue test signals for the core cells and by producing output digital signatures from the cells response. In this paper, we will focus on the on-chip analogue test signal generatio...

The design of analogue electronic experiments to investigate phenomena in nonlinear dynamics, especially stochastic phenomena, is described in practical terms. The advantages and disadvantages of this approach, in comparison to more conventional digital methods, are discussed. It is pointed out that analogue simulation provides a simple, inexpensive, technique that is easily applied in any labo...

We present an analog implementation of a dynamical system for solving Boolean satisfiability, an NP-complete problem. Simulations of modest-sized hardware implementations in the presence of noise and integrator offset demonstrate that the algorithm is suitable for implementation in analog electronics. ∗This report may be used for any non-profit purpose provided that the source is credited. 1

The soft fault diagnosis of nonlinear analog circuits is an important guarantee of the stable and reliable operation of electronic products. In view of the low accuracy and heavy computation load of current soft fault diagnosis methods for nonlinear analog circuits, this paper presents a soft fault diagnosis method for nonlinear analog circuits based on fractal theory. Analyzing the single-frac...

This paper presents analysis and simulation of a CMOS based cortical neuron circuit at 0.25μm technology node. The spiking and bursting patterns generated after the simulation of the circuit are studied. Also, the effect of variation of the (W/L) ratios of transistors on the spiking pattern is analyzed in this paper. The results obtained by simulation and the variations in parameters shows that...

The debate over the nature of mental imagery, especially with respect to the interpretation of recent findings on the transformation of images, has failed to focus on the crucial differences between the so-called "analogue" and "prepositional" approaches. In this paper I attempt to clarify the disagreements by focusing on the alleged spatial nature of images and on recent findings concerned wit...