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Examples of Communication Systems/ISDN Primary Multiplex Connection
In the binary representation this is:  "$10011$".  The graph shows the extraction of the CRC4 # As in the AMI code,  each binary  "'''0'''"  is assigned the signal level  $\rm 0\hspace{0.09cm} V$,  while the binary "'''1'''" is a

12 KB (1,926 words) - 17:05, 23 January 2023
Digital Signal Transmission/Signals, Basis Functions and Vector Spaces
...f digital signal transmission,  which is based on basis functions and signal space constellations.  This makes it possible to treat very different #  the application of the signal space description to  »carrier frequency systems«,

27 KB (4,255 words) - 12:11, 5 April 2023
Theory of Stochastic Signals/From Random Experiment to Random Variable
...for example,  for the simulation of a binary or multi-level digital signal,  but equally for the emulation of a channel with statistically indepe ...langle z_ν\rangle$  with the following properties established for our representation:

14 KB (2,155 words) - 18:09, 6 February 2024
Digital Signal Transmission/Carrier Frequency Systems with Non-Coherent Demodulation
The estimation of the phase angle from the incoming signal,  which is required for coherent demodulation,  is not possible o ...bility density functions of Rayleigh and Rice distributions.  To this representation it is to be noted:

28 KB (4,269 words) - 13:43, 10 October 2022
Mobile Communications/The GWSSUS Channel Model
...al distinction of these functions with regard to time and frequency domain representation by lowercase and uppercase letters is thus excluded. ${\rm (2)}$  For the  "frequency–time representation"  you get the  »'''time-variant transfer function'''«

40 KB (6,350 words) - 18:38, 30 January 2023
Theory of Stochastic Signals/Gaussian Distributed Random Variables
...stributed signal to a linear filter for spectral shaping,  the output signal is also Gaussian distributed.   Only the distribution parameters such ...neu.png |right|frame|Gaussian distributed and uniformly distributed random signal]]

19 KB (2,981 words) - 11:00, 22 December 2022
Digital Signal Transmission/Approximation of the Error Probability
With the nomenclature and representation form chosen for the fourth main chapter the following constellation results ...nbsp; $r = s + n$  is now a scalar and is composed of the transmitted signal  $s \in \{s_0, \hspace{0.05cm}s_1\}$  and the noise term  $n

37 KB (5,706 words) - 12:04, 17 November 2022
Channel Coding/General Description of Linear Block Codes
...en|$\text{Gram–Schmidt process}$]]  for the book  "Digital Signal Transmission",  which teaches the calculation of basis functions,&nbsp == Representation of SPC and RC as dual codes ==

37 KB (5,068 words) - 11:32, 22 November 2022
Examples of Communication Systems/xDSL as Transmission Technology
For the necessary directional separation of the xDSL signal transmission according to ...zes mutual interference in the trunk cable.  Thus,  the stronger signal ISDN does not interfere with the parallel running xDSL and vice versa.

35 KB (5,461 words) - 17:05, 24 April 2023
Signal Representation/Fast Fourier Transform (FFT)
|Untermenü=Time and Frequency-Discrete Signal Representation ==Exercises for the chapter==

17 KB (2,644 words) - 16:38, 28 June 2023
Channel Coding/Information Theoretical Limits of Channel Coding
One can see from this representation: Here,  for the output signal  $y = x + n$,  where  $n$  describes a  [[Theory_o

27 KB (4,255 words) - 12:12, 22 November 2022
Information Theory/AWGN Channel Capacity for Discrete-Valued Input
*This sequence is the discrete-time equivalent of the continuous-time signal  $X(t)$  after band-limiting and sampling. ...entation|"Dirac comb"]]  $p_δ(t)$.  The resulting discrete-time signal is thus:

37 KB (5,856 words) - 16:28, 28 February 2023
Modulation Methods/Spreading Sequences for CDMA
...ert ≤ φ_{xx}(τ = 0)$,  where  $φ_{xx}(τ =0)$  indicates the signal power  $P_x = {\rm E}\big[x^2(t)\big]$.  We now apply the above calculation rule to the spreading signal

24 KB (3,708 words) - 18:37, 23 January 2023
Examples of Communication Systems/Radio Interface
...on channel"  $\rm (FCCH)$  corresponds to an unmodulated carrier signal with frequency  $f_{\rm T} + Δf_{\rm A}$  $($carrier frequency + ...text{Frequency Modulator}$]]  with a binary bipolar rectangular input signal.

33 KB (5,164 words) - 18:48, 20 February 2023
Channel Coding/Soft-in Soft-Out Decoder
*In the following, all symbols are given in bipolar representation: ...block  $\underline{x} = (0,\ 1,\ 1)$   ⇒   in bipolar representation:  $(+1, \, -1, \, -1)$.<br>|class=fit]]

36 KB (5,613 words) - 18:21, 12 January 2023
Information Theory/General Description
...al  $q(t)$  can be analog as well as digital, just like the sink signal  $v(t)$.  All other signals in this block diagram, even those not ...|"Parameters of Digital Channel Models"]]  in the book  "Digital Signal Transmission"  describes the modeling of the  "digital channel".

30 KB (4,551 words) - 17:18, 19 February 2023
Digital Signal Transmission/Burst Error Channels
...he Gilbert-Elliott model  (red curve)  in linear and logarithmic representation for the parameters ...Gilbert-Elliott model marked with red circles.  One can see from this representation:

51 KB (8,435 words) - 18:10, 24 October 2022
Channel Coding/Algebraic and Polynomial Description
*on the one hand for reasons of simplest possible representation, ...aquo;<b>D–transform</b>«  belonging to the discrete time signal   $\underline{x} = (x_0, x_1, x_2, \ \text{...}) $  reads:

41 KB (5,999 words) - 19:50, 2 December 2022
Theory of Stochastic Signals/Two-Dimensional Random Variables
...can be signals such as the real and imaginary parts of a phase modulated signal. <br>One recognizes from this representation:

23 KB (3,664 words) - 15:38, 21 December 2022
Linear and Time Invariant Systems/Properties of Balanced Copper Pairs
One can see from this representation: ...or the coaxial cable systems,  $H_{β1}(f)$  does not lead to any signal distortion,  but only to a time delay by the  [[Linear_and_Time_I

37 KB (5,664 words) - 19:52, 28 November 2023