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Digital envelope modulator for digital waveform
The Journal of the Acoustical Society of America, 1983An envelope is imposed on a sequence of binary waveform samples representing a musical waveform signal by repetitively summing selected ones of a group of scaled representations of each of the waveform samples of the form A/2 m , A/2 m+1 . . . A/2 m+p , where A represents the magnitude of the waveform sample, p is a predetermined integer, and m is an ...
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A Comparison of Modulation Techniques for Digital Radio
IEEE Transactions on Communications, 1979This paper describes and summarizes the characteristics of the modulation techniques most applicable to digital radio. The modulation techniques discussed are on-off-keying (OOK) with coherent and noncoherent detection, quadrature amplitude modulation (QAM), quadrature partial response (QPR), frequency-shift-keying (FSK) with noncoherent detection ...
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Recognition of Digital Modulations
1996In modern communication systems, digital modulation techniques rather than analogue ones are frequently used. So, the new trend is the digital modulation recognisers. Most of the digital modulation recognisers discussed in Chapter 1 utilise the pattern recognition approach such as [4], and [14].
Elsayed Elsayed Azzouz +1 more
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2009
This chapter contains sections titled: Baseband Pulse Transmission Amplitude-shift Keying (ASK) Binary Phase-shift Keying (BPSK) Binary Frequency-shift Keying (FSK) Quadriphase-shift Keying (QPSK) Quadrature Amplitude Modulation Orthogonal Frequency Division Multiplexing (OFDM) OFDM in Wireless Local Area ...
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This chapter contains sections titled: Baseband Pulse Transmission Amplitude-shift Keying (ASK) Binary Phase-shift Keying (BPSK) Binary Frequency-shift Keying (FSK) Quadriphase-shift Keying (QPSK) Quadrature Amplitude Modulation Orthogonal Frequency Division Multiplexing (OFDM) OFDM in Wireless Local Area ...
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2001
MPEG source coding, which achieves a data reduction in audio and video signals, has been discussed in chapters 3 and 4. As explained in chapter 5, the various elementary streams are combined in the MPEG transport multiplexer to form a single data stream.
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MPEG source coding, which achieves a data reduction in audio and video signals, has been discussed in chapters 3 and 4. As explained in chapter 5, the various elementary streams are combined in the MPEG transport multiplexer to form a single data stream.
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2004
To begin with, this chapter quite generally creates a basis for an approach to the digital modulation methods. Following this chapter, it would also be possible to continue e.g. in the field of mobile radio technology (GSM, IS95 or UMTS) as the basic knowledge discussed here applies to the field of communication technology and its applications overall.
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To begin with, this chapter quite generally creates a basis for an approach to the digital modulation methods. Following this chapter, it would also be possible to continue e.g. in the field of mobile radio technology (GSM, IS95 or UMTS) as the basic knowledge discussed here applies to the field of communication technology and its applications overall.
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A multipurpose digital modulator.
IEEE Commun. Mag., 2021Faramaz Davarian, Joe T. Sumida
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1985
First considers the three basic forms of digital modulation: amplitude-shift-keying, frequency-shift keying, and phase-shift keying Compares binary modulation systems, in terms of power efficiency and spectrum efficiency Explains the principle of quadrature modulation used with M-ary PSK Describes three modulation techniques that offer ...
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First considers the three basic forms of digital modulation: amplitude-shift-keying, frequency-shift keying, and phase-shift keying Compares binary modulation systems, in terms of power efficiency and spectrum efficiency Explains the principle of quadrature modulation used with M-ary PSK Describes three modulation techniques that offer ...
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