... phase-locked loops are implemented digitally [1], except at very high frequencies. An example of a digital phase-locked loop is shown in Figure 5.9. Figure 5.9. A second order digital phase-locked loop. In ... transmit filter impulse response shifted by frequency offset of Synchronization Figure 5.6. A digital implementation of coarse frequency offset estimation using maximum likelihoo...
Ngày tải lên: 02/03/2013, 16:58
... Digital communications I: Modulation and Coding Course Period 3 - 2007 Catharina Logothetis Lecture
Ngày tải lên: 18/10/2013, 06:15
Tài liệu Digital Communications Harold ppt
... 1986. R.E. Ziemer and R.L. Peterson, Digital Communications and Spread Spectrum Systems, New York, Macmillan, 1985. R.E. Ziemer and R.L. Peterson, Introduction to Digital Communications, New York, ... science at the Naval Postgraduate School in Monterey, California. His areas of interest are digital communications, amateur satellites, VHF/UHF contesting, and QRP. His research area c...
Ngày tải lên: 21/01/2014, 04:20
Chapter 4: Digital communications pptx
... BUT, the more zones the more bits required to encode the samples higher bit rate Chapter 4: Digital communications Lecturer: M.Eng. P.T.A. Quang Quantization Error and SN Q R Signals ... bandwidth than the original analog signal. Price we pay for robustness and other features of digital transmission. 4.23 We want to digitize the human voice. What is the bit rate, assuming
Ngày tải lên: 10/03/2014, 18:20
Digital Communications pot
... addresses, 993 Bibliography, 995 Index, 1011 Digital Communications Ian A. Glover and Peter M. Grant Digital Communications Ian A. Glover and Peter M. Grant Digital techniques are central to almost ... sequence CDMA DSI Digital speech interpolation DSL Digital subscriber line DSMX Digital system multiplexer DSP Digital signal processing, domain specific part DSR Dat...
Ngày tải lên: 24/03/2014, 11:21
Real-Time Digital Signal Processing - Chapter 9: Practical DSP Applications in Communications
... dispersive delay is called the tail delay. Assume that the echo path P(z) is linear, time invariant, and with infinite impulse response pn, n 0, 1, , I. As shown in Figure 9.11, the primary ... be expressed as r 20 log 10 E jxnj E jdnj : 9:4:6 If the echo path is time-invariant, the ERL may be measured during the training period for some applications. In several adaptive .....
Ngày tải lên: 06/11/2013, 18:15
Tài liệu Digital Modulation in Communications Systems – An Introduction doc
... increasing the peak deviation. MSK with a Gaussian filter is termed GMSK (Gaussian MSK). 3.5 Quadrature Amplitude Modulation Another member of the digital modulation family is Quadrature Amplitude Modulation ... Matched filters are not used in Gaussian filtering. 4.3 Gaussian filter In contrast, a GSM signal will have a small blurring of symbols on each of the four states because the Ga...
Ngày tải lên: 26/01/2014, 04:20
Digital Modulation in Communications Systems – An Introduction doc
... increasing the peak deviation. MSK with a Gaussian filter is termed GMSK (Gaussian MSK). 3.5 Quadrature Amplitude Modulation Another member of the digital modulation family is Quadrature Amplitude Modulation ... Matched filters are not used in Gaussian filtering. 4.3 Gaussian filter In contrast, a GSM signal will have a small blurring of symbols on each of the four states because the Ga...
Ngày tải lên: 31/03/2014, 07:20