Form

1) It marks directed them and it marks reflected them:

 

2) It marks them impulsive rectangular:

It extends from â?"T/2 a T/2 è .

 

3) It marks them impulsive triangular:

It extends from â?"T/2 a T/2 è con .

 

4) It marks them impulsive to raised cosine:

 

5) Define and to make an example of marks them bilateral:

It is marks them not null is for positive times you that for times denied to you, an example is

 

6) Energy of marks them:

The energy is the integral of the instantaneous power .

 

7) medium Power of marks them:

In the case it marks them s(t) is limitless in the time and it does not have ended energy, considers the temporal medium power of marks them essendo marks cut them.

 

8) medium Valor of marks them:

, it is various from 0 solos for marks them of power.

 

9) Power of marks them periodic obtained for repetition of marks them of ended duration:

being and_xx0 the energy calculated to the inside of a period.

 

10) Energy for sequences:

The energy is estimated therefore of marks them continuous obtained from that discreet one by means of the operation of âtenutaâ?, moreover for convention assumes T = 1.

 

11) Power for sequences:

The power is estimated therefore of marks them continuous obtained from that discreet one by means of the operation of âtenutaâ?, moreover for convention assumes T = 1.

 

12) Function of temporal intercorrelationship or temporal mutual correlation:

characterizes the degree of likeness between 2 funzioni.

Attention to the fact must be placed that does not coincide with the convoluzione product.

 

13) mutual Energies:

Draft of the function of intercorrelationship calculated in t = 0 .

 

14) Function of index of temporal intercorrelationship :

It is the relationship between the intercorrelationship function and the root of the product of the energies turns out moreover |r_xy(t)| £ 1.

 

15) Function of autocorrelationship of marks them of energy:

draft that is of a hermitiana function with real value in origin C_xx(0) = and_xx , measure the affinity between marks them traslato in the time regarding what not trasla.

 

16) Product to climb of 2 marks them:

Draft of the value in the origin of the function of intercorrelationship between two marks them , measure the affinity of the two marks not traslati them.

 

17) It marks them parallels, antipodali, orthogonal:

Currency the index of intercorrelationship is had:

to) r_xy = 1 ž it marks them parallels

b) r_xy = 0 ž marks them orthogonal

c) r_xy = -1 ž marks them antipodali

 

18) Function of intercorrelationship of marks them of power:

 

19) mutual Powers:

Draft of the values assumed in the origin from the functions of intercorrelationship P_xy = R_xy(0) = R^*_yx(0) = P^*_yx .

 

20) Function of index of temporal intercorrelationship of marks them of power:

It is an adimensional function defined , its module is always smaller of 1.

 

21) Function of temporal covarianza for marks them of power:

It is the function of temporal intercorrelationship of the members to valor medium null:

 

22) Function of temporal autocorrelationship of marks them of power:

Hermitiana function characterizes the affinity of marks them traslato in the time with that one traslato is not therefore one.

 

23) Function of temporal autocovarianza:

 

24) Family of marks incorrelati them:

A family of marks them says incorrelata if all the covarianza functions are null.

 

25) Family of marks them incoherent:

Draft of with of marks them of power for which for every t the intercorrelationship functions are null all.

 

26) Sequences of intercorrelationship between sequences to ended energy:

 

27) temporal Sequences of autocorrelationship for sequences to ended power:

it from a measure of the speed of variation of marks them same.

 

28) temporal Sequences of autocorrelationship for sequences to ended power:

 

29) Sequences of autocovarianza:

 

30) Transformed of Fourier:

 

31) mutual Spectral density of energy:

It is the transformed one of Fourier of the intercorrelationship function, that is:

 

32) Spectral density of energy of marks them:

It is the transformed one of Fourier of the autocorrelationship function, that is:

 

33) mutual Spectral density of power:

It is the transformed one of Fourier of the function of intercorrelationship of marks them of power, that is:

 

34) Spectral density of power of marks them:

It is the transformed one of Fourier of the function of autocorrelationship of marks them of power, that is:

 

35) It marks them analytical:

 

36) Transformed of Hilbert of x(t):

it is a transformation between marks them in how much is remained in the dominion of the time. She marks them and transformed its of Hilbert has the same phantom of energy.

 

37) Relation between the X(f) phantom of marks them x(t) and the phantom of the transformed one of Hilbert of marks them x(t):

 

38) complex Envelope of marks them:

Draft of the antitransformed one of marks them traslato so as to to carry f_{the c} in the origin, it is had: