Quantitative electromyography is a widely used, powerful method for determining in vivo patterns of muscle activity in diverse animal behaviours. Recent increased capabilities of microcomputers have simplified quantification of the variation in the intensity of recruitment during muscle activity, whereas the times of onset and offset of muscle activity have commonly been determined without comp...

This contribution deals with a fully digital multirate radio receiver suitable for vehicular applications. Timing correction and sample rate conversion are performed by a polynomial interpolator. Three different receiver configurations are considered in terms of computational complexity and BER performance. Careful selection of the intermediate frequency turns out to play a crucial role. System...

Feasibility of Software Radio mainly depends on the availability of a suitable hardware platform. A basic feature of this hardware platform is the ability to process signals of different mobile communications standards, which are usually based upon a diversity of master clock rates. Hence, the conversion between different sample rates is an important functionality of a Software Radio receiver. ...

Sandia National Laboratories (SNL) currently achieves a bandwidth efficiency (η ) of 0.5 to 1.0 bps/Hz by using traditional modulation schemes, such as, BPSK and QFSK. SNL has an interest in increasing the present bandwidth efficiency by a factor of 4 or higher with the same allocated bandwidth (about 10 MHz). Simulations have shown that 32QAM trellis-coded modulation (TCM) gives a good bit err...

In a previous paper, I investigated the interactions in a gene family of additive selection and biased gene conversion in a finite population when conversion events are rare. Here I extend my "weak-conversion limit" model by allowing biased interallelic conversion (conversion between alleles at the same locus) of arbitrary frequency and various threshold selection schemes for rare interlocus co...

Oversampling techniques offer several advantages for the implementation of high-resolution analog-to-digital (A/D) converters in VLSI technologies. This paper examines the application of oversampling techniques to A/D conversion at rates exceeding 1 MHz. A cascaded multibit sigma-delta (2A) modulator that substantially reduces the oversampling ratio required for 12-b conversion while avoiding s...

We experimentally demonstrate a reconfigurable optical converter/encoder for quadrature amplitude modulated (QAM) signals. The system utilizes nonlinear wavelength multicasting, conversion-dispersion delays, and simultaneous nonlinear multiplexing and sampling. We show baud rate tunability (31 and 20 Gbaud) and reconfigurable conversions from lower-order QAM signals to higher-order QAM signals ...