measure_coef.rar - It is to find the coefficient of similarity,2011-12-18 12:28:45,下载3次
Finiteimpulseresponsefirfilter.rar - This code is a VHDL based code for FIR filter.A finite impulse response (FIR ) filter is a type of a digital filter. The impulse response, the filter s response to a Kronecker delta input, is finite because it settles to zero in a finite number of sample intervals. ,2009-11-16 13:33:50,下载9次
Circuittechniquesforlowvoltagehighspeed.rar - For analog circuits the evolution of technology is not as beneficial.Thus there is trend to move
signal processing functions from the analog domain to digital one.,2009-11-16 13:18:57,下载3次
GuidetoLowVoltageSystems.rar - 揕ow-voltage and Limited-energy?are terms not
defined by the National Electrical Code. And
strictly speaking optical fiber cable systems,
which transmit information using high-speed
bursts of light generated by tiny lasers, are 搉oenergy
and no-voltage.,2009-11-16 12:52:47,下载3次
ControlofInductionMotors.rar - Among many types of the
motors, three-phase induction machines still enjoy the same unparalleled
popularity as they did a century ago. At least 90 of industrial drive
systems employ induction motors.
Most of the motors are uncontrolled, but the share of adjustable speed
induction motor drives fed from power electronic converters is steadily
increasing, phasing out dc drives. It is estimated that more than 50 billion
dollars could be saved annually by replacing all "dumb" motors with
controlled ones. However, control of induction machines is a much more
challenging task than control of dc motors. Two major difficulties are
the necessity of providing adjustable-frequency voltage (dc motors are
controlled by adjusting the magnitude of supply voltage) and the nonlinearity
and complexity of analytical model of the motor, aggrandized by
parameter uncertainty.
,2009-11-16 12:45:46,下载35次
Modeling[1].and.High.Performance.Control.of.Elect - This book is intended to be an exposition of the modeling and control of
electric machines, specifically, the direct current (DC) machine and the
alternating current (AC) machines consisting of the induction motor, the
permanent magnet (PM) synchronous motor, and the brushless DC motor.
The particular emphasis here is on techniques used for high-performance
applications, that is, applications that require both rapid and precise control
of position, speed, and/or torque. Traditionally, DC motors were reserved
for high-performance applications (positioning systems, rolling mills,
traction drives, etc.) because of their relative ease of control compared to
AC machines. However, with the advances in control methods, computing
capability, and power electronics, AC motors continue to replace DC motors
in high-performance applications. The intent here is to carefully derive
the mathematical models of the AC machines and show how these mathematical
models are used to design control algorithms,2009-11-16 12:32:49,下载637次
ImageProcessingwithLV.rar - Image Processing with LabVIEW,2009-11-15 21:36:51,下载25次