An Impulse Excitation Transmitter

Repetitive subthreshold synaptic excitation and transmitter depletion.

Consider the simple equation for somatic nerve membrane depolarization V(t), dl’ V 1(t) dt + -= -c (1) z where z is the time constant, C is the capacitance and Z(t) is the input current. Use of this lumped circuit picture means that Z(t) represents the current seen at the soma due to synaptic sources which may be located on the dendrites. From equation (1) the current pulse has been deduced (Cu...

Transmitter measurements and analysis of frame synchronisation of an Impulse-Radio Ultra-wideband System

Ultra-wideband (UWB) is a promising radio technology which is well suited to low power short-range wireless applications. At Holst Centre, there is a research program on the design and implementation of ultra low power, Impulse Radio-UWB (IR-UWB) wireless systems suitable for audio streaming and real time localization systems. Some key technology challenges for IR-UWB systems are Direct Current...

Upthrow of Objects Due to Horizontal Impulse Excitation By

The phenomenon of upthrow of rigid blocks, excited into motion by horizontal impulses, is examined in this study. A simple foundation model is used, consisting of two sets of springs and dashpots; one set near each corner of the block. Each set consists of vertical and horizontal elements. The vertical springs are not permitted to take tensile forces, so separation of the block from the ground ...

Thermodynamic theory of saturation of the impulse magnon excitation

An Impulse Sequence Representation of the Excitation Source Characteristics of Nonverbal Speech Sounds

Impulse-sequence representation of the excitation source component of normal speech signal has been of considerable interest in speech coding research. If a similar representation can be made for nonverbal (i.e., nonnormal or nonneutral) speech sounds, that would immensely help in their acoustic analyses and diverse applications. This paper proposes a representation of the excitation source cha...