Question

A rectangular pulse has voltage value B for time t = t1 to t= t2 . write the voltage in terms of unit step function​

Answer 1

Explanation:

sinusoidal signal is of the form

x(t) = cos(ωt + θ).

where the radian frequency is ω, which has the units of radians/s.

Also very commonly written as

x(t) = A cos(2πft + θ).

where f is the frequency in Hertz.

We will often refer to ω as the frequency, but it must be kept in mind

that it is really the radian frequency, and the frequency is actually f .

Cuff (Lecture 2) ELE 301: Signals and Systems Fall 2011-12 3 / 70

The period of the sinuoid is

T =

1

f

=

2π

ω

with the units of seconds.

The phase or phase angle of the signal is θ, given in radians.

t -2T -T 0 T 2T

cos(ωt)

-2T -T 0 T 2T t

cos(ωt −θ)

Cuff (Lecture 2) ELE 301: Signals and Systems Fall 2011-12 4 / 70sinusoidal signal is of the form

x(t) = cos(ωt + θ).

where the radian frequency is ω, which has the units of radians/s.

Also very commonly written as

x(t) = A cos(2πft + θ).

where f is the frequency in Hertz.

We will often refer to ω as the frequency, but it must be kept in mind

that it is really the radian frequency, and the frequency is actually f .

Cuff (Lecture 2) ELE 301: Signals and Systems Fall 2011-12 3 / 70

The period of the sinuoid is

T =

1

f

=

2π

ω

with the units of seconds.

The phase or phase angle of the signal is θ, given in radians.

t -2T -T 0 T 2T

cos(ωt)

-2T -T 0 T 2T t

cos(ωt −θ)

Cuff (Lecture 2) ELE 301: Signals and Systems Fall 2011-12 4 / 70sinusoidal signal is of the form

x(t) = cos(ωt + θ).

where the radian frequency is ω, which has the units of radians/s.

Also very commonly written as

x(t) = A cos(2πft + θ).

where f is the frequency in Hertz.

We will often refer to ω as the frequency, but it must be kept in mind

that it is really the radian frequency, and the frequency is actually f .

Cuff (Lecture 2) ELE 301: Signals and Systems Fall 2011-12 3 / 70

The period of the sinuoid is

T =

1

f

=

2π

ω

with the units of seconds.

The phase or phase angle of the signal is θ, given in radians.

t -2T -T 0 T 2T

cos(ωt)

-2T -T 0 T 2T t

cos(ωt −θ)

Cuff (Lecture 2) ELE 301: Signals and Systems Fall 2011-12 4 / 70