Difference between revisions of "Modulation Methods"

Latest revision as of 12:25, 3 April 2023

Objective of modulation and demodulation: Frequency and time division multiplexing. Ideal, distortion-free and distorting system. Quality criteria.
Amplitude modulation and associated demodulators: Double sideband– and single sideband modulation. Envelope and synchronous demodulation.
Angle modulation and associated demodulators: Phase modulation and frequency modulation. Signal-to-noise ratio with angle modulation.
Digital modulation techniques: Pulse code modulation, Linear modulation techniques $($ASK, BPSK, BPSK$)$, Non-linear modulation $($FSK, MSK, GMSK$)$.
Multiple access methods: FDMA, TDMA, CDMA. Multiplexers and demultiplexers. CDMA spread sequences. PN modulation: Principle and realization.

Notes:

The description builds on the books »Signal Representation« and »Linear and Time Invariant Systems«.

Knowledge of »Theory of Stochastic Signals« is helpful, but not essential.

Further details on digital signal transmission $($BER computation, system optimisation, ...$)$ are covered in the book »Digital Signal Transmission«.

⇒ Here first an »content overview« by means of the »five main chapters« with a total of »23 individual chapters« and »192 sections«.

Content

General Description

Amplitude Modulation and Demodulation

Angle Modulation and Demodulation

Digital Modulation Methods

Multiple Access Methods

Exercises and multimedia

In addition to these theory pages, we also offer exercises and multimedia modules on this topic, which could help to clarify the teaching material:

$(1)$ $\text{Exercises}$

$(2)$ $\text{Learning videos}$

$(3)$ $\text{Applets}$

Further links

$(4)$ $\text{Bibliography}$

$(5)$ $\text{Impressum}$

@@ Line 1: / Line 1: @@
-$\Rightarrow \hspace{0.5cm}\text{The translation of this book to English is in progress. The first two chapters are completed.}$
+===Brief summary===
-This book describes essential fundamentals of analog as well as digital transmission technology.&nbsp; Further details of digital signal transmission - such as error probability calculation and system optimization - are covered in the book &nbsp;[[Digital Signal Transmission]]&nbsp;.
+{{BlueBox|TEXT=This book describes essential fundamentals of both analogue and digital transmission systems,&nbsp; in particular:
+# Objective of modulation and demodulation:&nbsp; Frequency and time division multiplexing.&nbsp; Ideal,&nbsp; distortion-free and distorting system.&nbsp; Quality criteria.
+# Amplitude modulation and associated demodulators:&nbsp; Double sideband&ndash; and single sideband modulation.&nbsp; Envelope and synchronous demodulation.
+# Angle modulation and associated demodulators:&nbsp; Phase modulation and frequency modulation.&nbsp; Signal-to-noise ratio with angle modulation.
+# Digital modulation techniques:&nbsp; Pulse code modulation,&nbsp; Linear modulation techniques&nbsp; $($ASK,&nbsp; BPSK,&nbsp; BPSK$)$,&nbsp; Non-linear modulation&nbsp; $($FSK,&nbsp; MSK,&nbsp; GMSK$)$.
+# Multiple access methods:&nbsp; FDMA, TDMA, CDMA.&nbsp; Multiplexers and demultiplexers.&nbsp; CDMA spread sequences.&nbsp; PN modulation:&nbsp; Principle and realization.
-The description builds on the books&nbsp; [[Signal Representation]]&nbsp; and &nbsp;[[Linear_and_Time_Invariant_Systems]].&nbsp; Knowledge of&nbsp; [[Theory of Stochastic Signals]]&nbsp; is helpful, but not essential.
+<u>Notes:</u>
+*The description builds on the books&nbsp; &raquo;[[Signal Representation]]&laquo;&nbsp; and &nbsp;&raquo;[[Linear_and_Time_Invariant_Systems]]&laquo;.&nbsp;
-The subject matter corresponds to a&nbsp; $\text{lecture with three semester hours per week (SWS) and two additional SWS exercises}$.
+*Knowledge of&nbsp; &raquo;[[Theory_of_Stochastic_Signals]]&laquo;&nbsp; is helpful,&nbsp; but not essential.
-Here is a table of contents based on the&nbsp; $\text{five main chapters}$&nbsp; with a total of&nbsp; $\text{23 individual chapters}$.
+*Further details on digital signal transmission&nbsp; $($BER computation,&nbsp; system optimisation, ...$)$&nbsp; are covered in the book &nbsp;&raquo;[[Digital Signal Transmission]]&laquo;.
+&rArr; &nbsp; Here first an&nbsp; &raquo;'''content overview'''&laquo;&nbsp; by means of the &nbsp;&raquo;'''five main chapters'''&laquo;&nbsp; with a total of&nbsp; &raquo;'''23 individual chapters'''&laquo;&nbsp; and&nbsp; &raquo;'''192 sections'''&laquo;.}}
@@ Line 23: / Line 32: @@
 *[[/Double-Sideband Amplitude Modulation/]]
 *[[/Synchronous Demodulation/]]
-*[[/Envelope Demodulation/]] $\hspace{0.5cm}\Rightarrow \hspace{0.5cm}\text{Not yet translated}$
+*[[/Envelope Demodulation/]]
-*[[/Single-Sideband Modulation/]] $\hspace{0.5cm}\Rightarrow \hspace{0.5cm}\text{Not yet translated}$
+*[[/Single-Sideband Modulation/]]
-*[[/Further AM Variants/]] $\hspace{0.5cm}\Rightarrow \hspace{0.5cm}\text{Not yet translated}$
+*[[/Further AM Variants/]]
 }}
 {{Collapse3 | header=Angle Modulation and Demodulation
 |submenu=
-*[[/Phase Modulation (PM)/]] $\hspace{0.5cm}\Rightarrow \hspace{0.5cm}\text{Not yet translated}$
+*[[/Phase Modulation (PM)/]]
-*[[/Frequency Modulation (FM)/]] $\hspace{0.5cm}\Rightarrow \hspace{0.5cm}\text{Not yet translated}$
+*[[/Frequency Modulation (FM)/]]
-*[[/Influence of Noise on Systems with Angle Modulation/]] $\hspace{0.5cm}\Rightarrow \hspace{0.5cm}\text{Not yet translated}$
+*[[/Influence of Noise on Systems with Angle Modulation/]]
 }}
 {{Collapse4 | header=Digital Modulation Methods
 |submenu=
-*[[/Pulse Code Modulation/]] $\hspace{0.5cm}\Rightarrow \hspace{0.5cm}\text{Not yet translated}$
+*[[/Pulse Code Modulation/]]
-*[[/Linear Digital Modulation/]] $\hspace{0.5cm}\Rightarrow \hspace{0.5cm}\text{Not yet translated}$
+*[[/Linear Digital Modulation/]]
-*[[/Quadrature Amplitude Modulation/]] $\hspace{0.5cm}\Rightarrow \hspace{0.5cm}\text{Not yet translated}$
+*[[/Quadrature Amplitude Modulation/]]
-*[[/Nonlinear Digital Modulation/]] $\hspace{0.5cm}\Rightarrow \hspace{0.5cm}\text{Not yet translated}$
+*[[/Non-Linear Digital Modulation/]]
 }}
 {{Collapse5 | header=Multiple Access Methods
@@ Line 47: / Line 56: @@
 *[[/Error Probability of Direct-Sequence Spread Spectrum Modulation/]]
 *[[/General Description of OFDM/]]
-*[[/Implementation of OFDM Systems/]] $\hspace{0.5cm}\Rightarrow \hspace{0.5cm}\text{Not yet translated}$
+*[[/Implementation of OFDM Systems/]]
-*[[/OFDM for 4G Networks/]] $\hspace{0.5cm}\Rightarrow \hspace{0.5cm}\text{Not yet translated}$
+*[[/OFDM for 4G Networks/]]
-*[[/Further OFDM Applications/]] $\hspace{0.5cm}\Rightarrow \hspace{0.5cm}\text{Not yet translated}$
+*[[/Further OFDM Applications/]]
 }}
 {{Collapsible-Fuß}}
-In addition to these theory pages,&nbsp; we also offer tasks and multimedia modules on this topic,&nbsp; which could help to clarify the teaching material:
+===Exercises and multimedia===
-*[https://en.lntwww.de/Category:Modulation_Methods:_Exercises  $\text{Exercises}$]
-*[[LNTwww:Learning_Videos_to_"Modulation_Methods"|$\text{Learning videos}$]]
+{{BlaueBox|TEXT=
-*[[LNTwww:LNTwww:Applets_to_"Modulation_Methods"|$\text{Applets}$]]&nbsp;
+In addition to these theory pages,&nbsp; we also offer exercises and multimedia modules on this topic,&nbsp; which could help to clarify the teaching material:
+$(1)$&nbsp; &nbsp; [https://en.lntwww.de/Category:Modulation_Methods:_Exercises  $\text{Exercises}$]
+$(2)$&nbsp; &nbsp; [[LNTwww:Learning_Videos_to_"Modulation_Methods"|$\text{Learning videos}$]]
+$(3)$&nbsp; &nbsp; [[LNTwww:LNTwww:Applets_to_"Modulation_Methods"|$\text{Applets}$]]&nbsp;}}
+===Further links===
+{{BlaueBox|TEXT=
+$(4)$&nbsp; &nbsp; [[LNTwww:Bibliography_to_"Modulation_Methods"|$\text{Bibliography}$]]
+$(5)$&nbsp; &nbsp; [[LNTwww:Imprint_for_the_book_"Modulation_Methods"|$\text{Impressum}$]]}}
 <br><br>
-$\text{Further links:}$
-<br><br>
-$(1)$&nbsp; &nbsp; [[LNTwww:Bibliography_to_"Modulation_Methods"|$\text{Bibliography for the book}$]]
-$(2)$&nbsp; &nbsp; [[LNTwww:General_notes_about_"Modulation_Methods"|$\text{General notes about the book}$]] &nbsp; (authors,&nbsp; other participants,&nbsp; materials as a starting point for the book,&nbsp; list of sources)
-<br><br>
 {{Display}}