Digital modulation techniques 
related topic: ADSL,
Analog modulation techniques,
Broadband modems,
Digital TV,
GSM,
Modems,
WIFI & WLAN,
WLAN antennas,
Wireless networking |
| Base de
transmission numériques en Français |
| Communications
analog and digital overview: a tip,
animated |
|
Communication systems and technology The Evolution of Communication
Concepts, Quantification and Representation of Information: Introduction,
Spectral Analysis: Modulation and Multiplexing, Wireless Technology:
Electromagnetic Fields and Radiation, The Representation and Communication of
Auditory and Visual Information, Optical Fiber Technology, a tip |
|
CableLabs: Docsis socuments |
|
DAB
DAB, Radio broadcasting systems, Digital Audio Broadcasting (DAB) to mobile,
portable and fixed receivers, pdf |
|
Digitally
Modulated RF Systems a tutorial overview of various digital communication
techniques
currently applicable to Broadcasting, 16 QAM, Channel Capacity, Binary Phase
Shift Keying (BPSK), Quadrature Phase Shift Keying (QPSK/QAM), pdf file |
|
Digital Communications pdf file |
|
Digital modulation
Digital modulation, Data Signal Analysis, Spectrum Analysis, pdf file |
|
Digital modulation |
|
Digital modulation direct sequence, Code Division Multiple Access (DS-CDMA), frequency hopping
Code Division Multiple Access (FH-CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), pdf file |
| Digital
modulation PSK, QPSK, OQPSK, M-PSK, MSK, GMSK, pdf
file |
| Digital
modulation ASK, FSK and PSK, Modulation techniques, QPSK, OQPSK, M-PSK, MSK,
GMSK, pdf file |
|
Digital
modulation ASK, FSK and PSK, pdf file |
|
Digital modulation and GMSK
Digital Modulation and GMSK, Phase shift keying, Quadrature Phase Shift Keying,
Offset Quadrature Phase Shift Keying, OQPSK, Minimum Shift Keying, Gausssian
Minimum Shift Keying (GMSK), GMSK Modulation, pdf file |
|
Digital modulation:
application notes |
|
Digital
Modulation in Communications Systems how information is modulated onto
in-phase (I) and quadrature (Q) signals, different types of digital modulation,
an overview table with key specifications for the major digital communications
systems, pdf file |
|
Digital
Modulation in Communications Systems pdf file |
|
Digital modulation schemes pdf file |
|
Digital modulation overview pdf file |
|
Digital
modulation techniques Digital modulation techniques, Amplitude shift key
modulation (ASK), Frequency shift key modulation (FSK), Binary-phase shift key
modulation (BPSK), Quadrature-phase shift key modulation (QPSK), Quadrature
amplitude modulation (QAM) |
|
Digital modulation
techniques overview Digital modulation techniques overview |
|
Digital Transmission
of Analog Signals Digital Transmission of Analog Signals, Analog Pulse
Modulation, pulse amplitude modulation (PAM), pulse width modulation (PWM) and
pulse position modulation (PPM), Educypedia, sampling process, Digital Pulse Modulation,
Pulse code modulation (PCM) and delta modulation (DM), Pulse Code Modulation,
PCM Channel Banks, CCITT µ-Law, CCITT A-Law, PCM Transmission, pdf file |
|
Ericsson
technologies |
|
Radio
Communications |
|
Reference for
Wireless Communication Understanding Wireless Telecom and Data
Communications Terminology, This reference will help you understand the
terminology associated with wireless telecom and data communications, pdf file |
|
Signal
Processing for Cellular Communication Systems Data Flow Diagram, Amplitude
Shift Keying, Frequency Shift Keying, Phase Shift Keying, Quadrature Amplitude
Modulation, Flat fading, Multi-path fading |
| Tutorials in communications engineering
signal analysis, power, energy and spectrum, Differential Phase Shift Keying, DVB-S standard, Fourier analysis, baseband - passband - and Amplitude Modulation
(AM), Convolutional Coding and Decoding, coding concepts and block coding, inter symbol interference (ISI) and raised cosine filtering, Quadrature Partial
Response (QPR) modulation, Frequency Modulation (FM) , FSK, MSK, Phase Locked Loop (PLL), Trellis coded Modulation (TCM) |
|
Wireless LAN technologies Wireless LAN technologies, direct sequence, Code Division Multiple Access (DS-CDMA), frequency hopping
Code Division Multiple Access (FH-CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA),
ppt file |
|
Wireless
Networking Measuring and Troubleshooting OFDM Wireless LAN Signal Quality,
OFDM versus Single Carrier Modulation, Structure of IEEE 802.11a OFDM Frame,
IEEE 802.11a Specifications, 64QAM |
|
Horizontaal |
|
Digital modulation: topics
related topics: ADSL,
Broadband modems,
GSM,
Modulation techniques, WIFI & WLAN |
|
16-QAM
constellation diagram and bit allocation
pdf file |
|
64-QAM scheme
64-QAM scheme suitable for the transmission of cable televisions, Differential
Coding And Mapping |
|
256-QAM
256-QAM,
pdf file |
|
Adaptive
Modulation Adaptive Modulation (QPSK, QAM),
pdf file |
|
Amplitude-Shift Keying (ASK) Modulation
pdf file |
|
CDMA CDMA technique |
|
CDMA
CDMA History, Spread Spectrum Technology, Direct-Sequence Frequency Hopping,
Time Hopping, CDMA Challenges, Receiver design, Near-Far Problem, Power Control,
Soft and softer Handover, CDMA Applications in Mobile Network, ...,
pdf file |
|
CDMA Coding
this applet demonstrates CDMA multiple access coding and allows the user to see
the process of coding and decoding in real time |
|
CDMA Interactive
Interactive Flash Presentation covering various CDMA concepts |
| CDMA techniques
CDMA techniques |
| CDMA technology
the concept behind multiple access is to permit a number of users to share a
common channel. The two traditional ways
of multiple access are Frequency Division Multiple Access (FDMA) and Time
Division Multiple Access (TDMA). CDMA, for Code Division Multiple Access, is
different than those traditional ways in that it does not allocate frequency or
time in user slots but gives the right to use both to all users simultaneously |
| CDMA tutorial
Frequency Division Multiple Access (FDMA), Code Division Multiple Access (CDMA),
Time Division Multiple Access (TDMA). |
| CDMA tutorial
an introduction to Code
Division Multiple Access (CDMA) communications, covering a Radio Carrier Station
(RCS) and a Fixed Subscriber Unit (FSU), Introduction to Spread Spectrum
Communications, Three Types of Spread Spectrum Communications, Direct Sequence
Spread Spectrum, Implementing CDMA Technology |
|
Coded Orthogonal Frequency
Division Multiplexing (COFDM) Variable Bit Rate Coding, VBR, Coded
Orthogonal Frequency Division Multiplexing (COFDM), DAB, Wideband & Narrowband
Wireless Transmission, Error Correction Coding, QPSK symbols, 16-QAM, 64-QAM |
| Coded Orthogonal
Frequency Division Multiple Access pdf file |
|
COFDM Coded
Orthogonal Frequency Division Multiplexing (COFDM) is a form of modulation which
is particularly well-suited to the needs of the terrestrial broadcasting
channel, pdf file |
|
COFDM
The how and why of COFDM, COFDM Technology Basics, pdf file |
| Convolutional
coding with Viterbi decoding a forward error correction technique known as
convolutional coding with Viterbi decoding |
|
Digital Transmission: Carrier-to-Noise, Signal-to-Noise & Modulation Error Ratio
Digital Transmission: Carrier-to-Noise Ratio, Signal-to-Noise Ratio, and
Modulation Error Ratio |
|
Direct-Sequence Spread-Spectrum communications DSSS communications |
| Direct
sequence vs. frequency hopping A Comparison of Frequency Hopping and Direct
Sequence Spread Spectrum Modulation for IEEE 802.11 Applications at 2.4 GHz, pdf file |
| Discrete MultiTone transmission DMT |
|
DVB
QAM Modulator The L64777 chip implements a QAM modulator that is digital
video, pdf file |
|
DPSK mode
describes the sixteen-tone differential phase-shift keying (DPSK) mode |
|
DSSS communications
In telecommunications, direct-sequence spread spectrum is a modulation technique
where the transmitted signal takes up more bandwidth than the information signal
that is being modulated, which is the reason that it is called spread spectrum.
DSSS, ... |
|
DSSS:
an Introduction to
Direct-Sequence Spread-Spectrum Communications DSSS, A tutorial overview
of spread spectrum principles. Covers both direct sequence and fast hopping
methods. Educypedia, Theoretical equations are given to allow performance estimates.
Relation to CDMA and TDMA is provided. Schematic of a code sequence generator is
shown. Spectral plots are shown for DSSS and FHSS methods, pdf file |
|
FDMA channel allocations |
|
FREQUENCY CHANNEL ENCODING
Pulse Modulation (PAM, PPM, and PFM) |
|
FSK
Frequency shift keying (FSK) is the most common form of digital modulation in
the high-frequency radio spectrum, and has important applications in telephone
circuits |
|
FSK A
quadrature modulator is a FSK modulator, Frequency shift keying modulator,
pdf file |
|
FSK: Signals and
Demodulation FSK: Signals and Demodulation, Binary FSK is a modulation scheme typically used to send digital information
between digital equipment such as teleprinters and computers, pdf file |
|
GMSK
Digital Modulation and GMSK, Gausssian Minimum Shift Keying (GMSK),
pdf file |
|
GMSK |
|
GMSK
Gaussian Minimum Shift Keying GMSK, Software Defined Radio, Modulation scheme
used in GSM |
|
GMSK Data Transmission Frequency Shift Keying FSK, Multi-level Frequency
Shift Keying MFSK, Continuous Phase Frequency Shift Keying CPFSK, Minimum Shift
Keying MSK, Gaussian Minimum Shift Keying GMSK, Tamed Frequency Modulation TFM,
Phase Shift Keying PSK, Quadrature Phase Shift Keying QPSK, Differential
Quadrature Phase Shift Keying DQPSK, Pi/4 Differential Quadrature Phase Shift
Keying Pi/4 DQPSK, Quadrature Amplitude Modulation QAM,
pdf file |
|
GSM physical
layer modulation GSM uses Gaussian-Fitered Minimum Shift Keying (GMSK) as
it's modulation scheme |
|
IQ modulation IQ modulation, modulation technique that lends itself well to
digital processes is called "IQ Modulation", where "I" is the "in-phase"
component of the waveform, and "Q" represents the quadrature component |
|
Minimum Shift Keying
two possibilities of detecting a minimum-shift keying signal: either as a BFSK
signal or as two BPSK signals,
pdf file |
| Missing Cycle
Modulation Pulse Position Phase Reversal Keying ( 3PRK )
pdf file |
|
OFDM Modulation type of multi-carrier modulation |
|
OFDM Modulation
An Introduction to Orthogonal Frequency Division Multiplex Technology,
pdf file |
|
OFDM
Receivers for Broadband-Transmission |
| OOK,
ASK and FSK Modulation
pdf file |
| PCM tutorial
puls code modulation |
|
PSK Phase shifting a carrier in known steps to convey digital data |
|
Phase-shift keying
Phase-shift keying (PSK) is a digital modulation scheme that conveys data by
changing, or modulating, the phase of a reference signal (the carrier wave) |
|
Phase-shift keying
Digital potentiometer controls phase shift |
|
PSK Demodulation
1 PSK Demodulation |
|
PSK Demodulation
2 PSK Demodulation |
|
Puls code modulation ppt file |
|
QAM
Demodulation |
|
QAM
modulation QPSK and 16-QAM Digital Modulation |
|
QPSK Modulation Demystified quadraphase-shift keying (QPSK) |
|
QPSK
modulation demystified Digital Frequency Modulation, Digital Phase
Modulation, Quadraphase-Shift Modulation |
| Quadrature modulators pdf file |
|
Quadrature amplitude modulation Quadrature amplitude modulation (QAM) is a
modulation scheme which conveys data by changing (modulating) the amplitude of
two carrier waves. These two waves, usually sinusoids, are out of phase with
each other by 90° and are thus called quadrature carriers, |
|
Quadrature signals
and their importantance in Digital Signal Processing pdf file |
|
QPSK Quadrature Phase Shift Keying (QPSK) modulation, a cosine carrier is
varied in phase while keeping a constant amplitude and frequency |
|
QPSK Phase-shift
keying (PSK) is a digital modulation scheme that conveys data by changing, or
modulating, the phase of a reference signal (the carrier wave), ... |
|
Sources of Error in IQ
Based RF Signal Generation decribes the basic architecture of IQ-based RF
signal generators and provides an in-depth analysis of ways to characterize
types error in communicaitons systems |
| Spread spectrum
& CDMA tutorial spread spectrum
& CDMA tutorial |
|
Spread spectrum communication Frequency Hopping Techniques |
|
Spread spectrum communication
Direct sequence spread spectrum (DSSS), General Block Diagram, Direct Sequence
Spread Spectrum (DSSS), Spreading and Despreading,
Educypedia |
| Spread spectrum communications
spread spectrum communications, A tutorial overview of spread spectrum
principles. Covers both direct sequence and fast hopping methods. Theoretical
equations are given to allow performance estimates. Relation to CDMA and TDMA is
provided. Schematic of a code sequence generator is shown. Spectral plots are
shown for DSSS and FHSS methods |
|
Spread
spectrum modulation Spread spectrum modulation, What is direct Sequence
spread spectrum modulation |
|
Spread Spectrum Modulation Techniques
Introduction to Spread Spectrum Techniques |
|
TDMA
Time Division Multiple Access (TDMA) is a multiple access technique used by
several cellular communication systems |
|
TDMA channel allocations Temporal Multiplexing, Synchronous Telegraphy |
|
TDMA/FDMA pdf file |
| TDMA tutorial
Time division multiple access (TDMA) is digital transmission technology that allows a number of users to access a single radio-frequency (RF) channel without
interference by allocating unique time slots to each user within each channel |
|
Techniques de codage NRZ, NRZI, MLT3, 2B1Q, Manchester, AMI, HDBx, nB/mB,
FSK, ASK, QAM, FDM, TDM, WDM, DWDM, DMT, CAP, DWMT, a tip, en Français |
|
Trellis coded Modulation (TCM) Trellis coded Modulation (TCM), pdf file |
|
Trellis-Coded Modulation TCM, pdf file |
|
WCDMA
Wideband Code Division Multiple Access. In WCDMA systems the data bits are
called "symbols" before spreading, but after channel coding and frame building.
3 XOR multiplication means modulo 2 addition |
|
Horizontaal |
|
|
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Last updated on:
2011-01-02
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