翻译-中翻英

Question

1，把信号只在某些不连续的瞬时给出函数值,成为离散时间信号.它可以来自模拟信号的抽样,或者是时间和幅度均不连续的离散信号.在离散信号的分析和处理时,通常把按一定先后次序排列在时间上不连续的一组数的集合,称之为数列.
2，两个不同的序列可以对应相同的Z变换，而收敛域并不相同，因此，为了使序列和Z变换是一一对应，在给出序列Z变换的同时，必须指定其收敛域。
3，随机信号是不能用精确的数学关系式描述的信号，但它的变动服从统计规律，可以用概率统计特性来描述。对随即信号按时间历程所做的各次长时间观测记录称为样本函数。
4，随机信号的时域和频域特性可以用统计方法进行研究，其幅值特性用信号的均值，均方值和概率密度函数表示。信号的时域特性也可以用自相关函数描述，频域特性可以用功率谱密度函数描述。

Answer 1

1st, only gives the function value the signal in certain not continual instants, becomes the discrete time signal. It may come from the simulated signal sampling, or is the time and the scope not continual discrete signal. When discrete signal analysis and processing, usually presses certain priority order to arrange in the time not a continual number of classes set, calls it the sequence. 2, two different sequences may correspond the same Z transformation, but the convergence domain is not same, therefore, to cause the sequence and the Z transformation is 11 correspondences, while gives the sequence Z transformation, must assign its convergence domain. 3, the random signal cannot use the precise mathematics relationship description the signal, but its change obedience statistics rule, may use the probability statistical property to describe. Each vice minister who does according to the time course the time observation record is called the sample function immediately to the signal. 4, random signal's time domain and the frequency range characteristic may use the statistical method to conduct the research, its peak-to-peak value characteristic uses the signal the average value, the mean square value and the probability density function expression. The signal time domain characteristic may also use the autocorrelation function to describe, the frequency range characteristic may use the power spectral density function to describe

Answer 2

又一个电子信息的孩子。。
一句句翻译太麻烦了 给你key word吧，其他组织一下就好了
离散时间 discrete time
模拟信号 analog signal
抽样 sampling
幅度 magnitude
Z变换 z transform
收敛域 the region of convergence
随即信号 ramdon signal
时域 time domain
频域 frequency domain
功率谱 power spectrum

Answer 3

1, a signal being put up the function value only in some discontinuous microtime , becomes straggling time signal. It can come from the analog signal sampling , be time and without exception discontinuous extent scattering signal or. During the period of scattering signal analysis and treatment , generally with arranging aggregation mounting discontinuous group of number in time according to certain precedence , being called progression. Different 2, two arrays can be corresponding identical Z varies, but the convergence region is not same as, therefore, for making the array and Z vary is one to one correspondence, must assign the person to restrain self's a region while giving array Z out alternation. The random signal can use the signal that accurate mathematics relational expression describes 3, its alteration obedience counts but a law , can use probability statistics to describe that coming characteristic property. The signal is called the sample book function face to face immediately according to precis writer made by time course. Random signal time domain and frequency region characteristic property can use statistical method to be in progress studying 4, whose amplitude characteristic property uses the signal mean value , mean square value and probability density function indicate that. Signal time domain characteristic property also can use self relevance function to describe that , frequency region characteristic property can use power spectrum density function to describe that.

Answer 4

1, The signal only in certain discrete functions are given the instantaneous value and become discrete-time signal. It can come from a sample of the analog signal, or the rate of time and not in a row of discrete signals. In the discrete signals analysis and processing , Usually by a certain order in time in a row is not a group of several collections, called the series.
2, two different sequences can be the same as the corresponding Z transform, and the convergence of different domains, in order to make the series and Z-one mapping is a transformation in the transformation of the Z series is given at the same time, we must specify the convergence domain.
3, random signal is not precise mathematical description of the relationship between the type of signal, but it's subject to change in the law of statistics, probability and statistics can be used to describe characteristics. Immediately to the signal time course of doing all the long record of the observation function as the sample.
4, random signals in the time domain and frequency domain characteristics can be used statistical methods to study, the amplitude of the signal characteristics of the mean, mean square value and probability density function. The time-domain signal characteristics can also be used to describe auto-correlation function, the frequency characteristics can be used to describe the power spectral density function.

Answer 5

They're
at
full
stretch.是
他们在全力生产
城市，让生活更美好
City,
Better
Life
做人要良心。。。
谢谢

Answer 6

The
Hunchback
of
Notre
Dame
which
has
only
read
in
childhood
fascinated
again
by
its
own
lively
and
exquisite
psychology
description.
But
what
the
most
memorable
one
is
Quasimodo
and
Esmeralda’s
story
of
emotion.
Quasimodo
experiences
every
kinds
of
social
mercilessness,
the
solicitude
of
sunlight
pass
through
the
gloomy
window.
This
piece
of
gentleness
is
worth
loving
Esmeralda
all
over
his
life
by
Quasimodo.
Although
he
knows
perfectly
well
that
he
has
no
way
to
own
real
love,
he
cannot
help
protecting
his
lover
with
his
heart
and
soul.
He
can
even
be
willing
to
help
the
loving
to
Phoebus
by
her
for
the
sake
of
happiness
of
Esmeralda.
And
he
still
guards
her
body
and
is
totally
willingly
content
himself
with
losing
his
life
and
follow
her
though
Esmeralda
has
died.
The
Hunchback
of
Notre
Dame
portrayed
distinct
personality
and
character
contrast.
In
the
opposition
of
Esmeralda,
though
Quasimodo
is
very
ugly,
he
has
a
very
kind
heart;
but
Phoebus
who
has
handsome
face
doesn’t
understand
how
to
love
a
person
by
heart.
It
brings
out
a
striking
contrast
between
Dom
Frollo’s
monopolization
and
Quasimodo’s
willing
to
death
for
love.
It
forms
an
attractive
dramatic
effect.
The
Hunchback
of
Notre
Dame
is
a
huge
book
of
literature.
It
sings
the
praises
of
Quasimodo’s
noble
character.
If
you
haven’t
read
it,
you
should
bring
yourself
a
cup
of
coffee.
Quasimodo’s
not
being
regret
is
waiting
for
you
to
taste.