This programmed text covers the basic elements of the theory
of modulation. It is by no means a comprehensive reference to
modulation topics. The text is designed to introduce the student to
modulation in general terms. After successful completion of this
text, the student should be able to advance to...
In communications it is often desirable to recover a signal
hidden in noise. The techniques of correlation are often employed
for this purpose. Initially, the basic formula and properties of correlation
including an approximating formula are presented. Then the
description, design, and construction of a DC to 500 KHz electronic...
When selecting an approximate integration technique for use in
a digital differential analyzer, such factors as cost, parts count,
power dissipation and solution accuracy must be considered. This
paper considers the application of the classical rectangular and
trapezoidal integration techniques and a new two cycle method of
integration, all implemented...
This thesis discusses the design and evaluation of an instrument that can estimate the probability density distributions of bandlimited, aperiodic electrical phenomena. This estimator can obtain the probability density estimates of signals that are contained within the frequency range of 100 cps. to 20 kcs. However, the basic design logic...
Periodic signals hidden in noise may be detected by using
correlation techniques This thesis presents a study of how
correlation is approximated statistically, and carried out electronically.
The ability to detect periodic signals in noise, using correlation,
is justified mathematically in the first portion of the thesis.
The discussion is...
Young's modulus, often called the modulus of elasticity,
gives a measure of the stiffness of a material to
an imposed load.
The modulus of a wooden beam is most often obtained
by destructive tests which destroy the specimen. If a
practical method can be found to measure Young's modulus
non-destructively,...