Abstract Design challenges resulting from single chip integration of RF and microwave transceivers is requiring both more powerful analog simulation techniques and more accurate behavioral models that allow efficient hierarchical simulation. Today system level models are limited by their inability to effectively cope with nonlinear memory effects. The paper describes a modeling approach based o...

The IEEE 802.15.4 wireless standard has been identified as a potential candidate to be used in smart home medical care. This undergraduate research project evaluates the performance of IEEE 802.15.4 under interference from other wireless devices that operate in the same frequency band. Specifically, we focus on two very common wireless interfering systems in typical home environments: IEEE 802....

Constant-height scanning is demonstrated to improve near-field microscopy by eliminating artifacts connected with topography scanning, hence, to image the inherent electromagnetic contrast. Microwaves are chosen for this study because the long wavelength eliminates coherence artifacts, owing to a scale separation of wave and image frequencies. Measured amplitude and phase images of conductive f...

In this paper, interleave-division multiple access (IDMA) is used for overloaded multiple-input multiple-output (MIMO) coded orthogonal frequency division multiplexing (OFDM) systems. An iterative interference cancellation multiuser detection (IIC-MUD) method is proposed, which has almost the same complexity but can achieve almost optimal (MAP) performance, much better than that of elementary s...

The acoustic emission (AE) signal of wood damage is a kind of weak and highfrequency signal. Hardware circuit design and software programming are necessary for the acoustic emission data acquisition. In order to carry out further analysis, it needs to be preprocessed. The preprocessing hardware system consists of preamplifier, filtering circuit, main amplification circuit and AD converting circ...