Search results

Create the page "Signal Representation: Exercises" on this wiki! See also the search results found.

Theory of Stochastic Signals/Stochastic System Theory
*the structure and representation of  »digital filters«  (non-recursive and recursive), ...operties of the  »Wiener-Kolmogorow filter«  for the signal reconstruction.

17 KB (2,779 words) - 11:17, 22 December 2022
Signal Representation/Principles of Communication
|Vorherige Seite=Signal Representation |Nächste Seite=Signal Classification

17 KB (2,614 words) - 19:56, 6 June 2023
Modulation Methods/Further AM Variants
[[File:EN_Mod_T_2_5_S1.png|right|frame|Spectrum  (of the analytical signal)  for vestigial sideband amplitude modulation]] In this schematic representation,  one recognizes:

8 KB (1,275 words) - 11:52, 13 January 2023
Mobile Communications/General Description of Time Variant Systems
...tem}$  with the signal  $s(t)$  at the input and the output signal  $r(t)$.   For the sake of simplicity, let  $s(t)$  and ...verse Fourier transform}$]]  of  $H(f)$.    The output signal results from the convolution:

10 KB (1,542 words) - 15:41, 29 January 2023
Theory of Stochastic Signals/Uniformly Distributed Random Variables
$\text{Example 1:}$  The graph shows two signal waveforms with uniform amplitude distribution. ...given.  Rather,  this sawtooth signal represents a deterministic signal.}}

11 KB (1,638 words) - 19:01, 20 February 2024
Modulation Methods/Direct-Sequence Spread Spectrum Modulation
...itter-side carrier signal  $z(t)$  and the receiver-side carrier signal   $z_{\rm E}(t) =2\cdot z(t)$  are omitted. ...;$z(t)$  and AWGN noise, characterized by the additive Gaussian noise signal  $n(t)$.  The second interference component  (interference f

13 KB (2,071 words) - 17:13, 19 January 2023
Modulation Methods/Single-Sideband Modulation
...lated signal  $s(t)$  requires twice the bandwidth of the source signal  $q(t)$. In this representation,  one can see:

14 KB (2,244 words) - 14:43, 18 January 2023
Modulation Methods/General Description of OFDM
*Instead of a broadband,  strongly modulated signal,  a large number of narrowband,  mutually orthogonal subcarriers ...t data rates for the subcarriers.  This means that a high-rate source signal must be split into several signals of significantly lower symbol rate for t

18 KB (2,900 words) - 18:31, 23 January 2023
Exercise 2.4Z: Repetition to IDFT
...r_Transform_(DFT)|"Discrete Fourier Transform"]]  of the book "Signal Representation" and is identical to the one there  [[Aufgaben:Exercise_5.2:_Inverse_D ...s thus describes the discrete form of the Fourier correspondence of the DC signal:

7 KB (1,085 words) - 20:22, 7 March 2023
Linear and Time Invariant Systems/Classification of the Distortions
Untermenü=Signal Distortion and Equalization ...'  is understood to be undesirable deterministic changes in a message signal caused by a transmission system. }}

14 KB (2,172 words) - 17:30, 9 November 2023
Signal Representation/The Convolution Theorem and Operation
[[File:EN_Sig_T_3_4_S1.png|right|frame|On calculation of signal and spectrum of the LTI output]] ...X(f)$  is applied to the input,  then the spectrum of the output signal is:

16 KB (2,526 words) - 17:50, 15 June 2023
Theory of Stochastic Signals/Expected Values and Moments
* $m_2$  corresponds to the  »signal power«  $($referred to the unit resistance  $1 \ Ω)$. #For discrete time,  the random signal  $x(t)$  is replaced by the random sequence  $〈x_ν〉$.

15 KB (2,185 words) - 19:37, 19 February 2024
Signal Representation/Possible Errors when using DFT
|Untermenü=Time and Frequency-Discrete Signal Representation *the  »windowing» that may falsely limit the signal  $x(t)$.

12 KB (2,000 words) - 17:16, 24 June 2023
Signal Representation/Differences and Similarities of Low-Pass and Band-Pass Signals
|Nächste Seite=Analytical Signal and Its Spectral Function ...f band-pass signals«  from the  »equivalent low-pass signal«,

17 KB (2,652 words) - 16:37, 19 June 2023
Signal Representation/Spectrum Analysis
|Untermenü=Time and Frequency-Discrete Signal Representation ...the distortion of the spectrum of a periodic and thus temporally unlimited signal due to the implicit time limit of the  »Discrete Fourier Transfo

16 KB (2,591 words) - 17:02, 27 June 2023
Modulation Methods/Influence of Noise on Systems with Angle Modulation
==Signal-to-noise power ratio in PM== [[File:EN_Mod_T_3_3_S1.png|right|frame|Signal-to-noise power ratio in phase modulation]]

10 KB (1,563 words) - 15:29, 13 January 2023
Linear and Time Invariant Systems/System Description in Frequency Domain
*In the book  »Signal Representation«  you were familiarized with the mathematical description of det ...ear Time-Invariant Systems«  now describes  what changes a signal or its spectrum undergoes through a transmission system  and how these

17 KB (2,685 words) - 18:50, 1 November 2023
Modulation Methods/Synchronous Demodulation
==Block diagram and time domain representation== ...e sideband (DSB) or single sideband (SSB),  with or without a carrier signal -  the so-called  »'''synchronous demodulator'''«&nbs

27 KB (4,430 words) - 11:32, 13 January 2023
Modulation Methods/Quality Criteria
*to provide a sink signal  $v(t)$  at a spatially distant sink *that differs as little as possible from the source signal   $q(t)$ .

18 KB (2,734 words) - 19:01, 12 January 2023
Signal Representation/Equivalent Low-Pass Signal and its Spectral Function
|Vorherige Seite=Analytical Signal and Its Spectral Function |Nächste Seite=Discrete-Time Signal Representation

35 KB (5,623 words) - 16:11, 21 June 2023