digital signal processing ppt

... REAL-TIME DIGITAL SIGNAL PROCESSING 1 Introduction to Real-Time Digital Signal Processing Signals can be divided into three categories ± continuous-time (analog) signals, discrete-time signals, and digital ... design and implement digital systems for processing digital signals using digital hardware. However, the analysis of such signals and systems usually uses discrete-time signals and systems for ... term `discrete-time' and `digital& apos; inter- changeably. Digital signal processing (DSP) is concerned with the digital representation of signals and the use of digital hardware to analyze,...

Ngày tải lên: 18/01/2014, 20:20

Ngày tải lên: 31/03/2014, 22:20

... Trans. on Signal Processing, submitted Nov. 1995. [2] Barroso, V.A.N. and Moura, J.M.F., l 2 and l 1 Beamformers: recursive implementation and performance analysis, IEEE Trans. on Signal Processing, SP-42(6), ... C.B., Array processing for mobile communications, Chapter 68 in this book. [12] Pillai, S.U., Array Signal Processing, Springer-Verlag, 1989. [13] Schmidt,R.O., Multipleemitter location andsignal ... V.A.M. & Moura, J.M.F. “Beamforming with Correlated Arrivals in Mobile Communications” Digital Signal Processing Handbook Ed. Vijay K. Madisetti and Douglas B. Williams Boca Raton: CRC Press...

Ngày tải lên: 13/12/2013, 00:15

... array signal processing in the beamspace domain for low-angle radar tracking, IEEE Trans. Signal Processing, 39, 656–671, Mar. 1991. [27] Zoltowski, M.D. and Stavrinides, D., Sensor array signal processing ... via Unitary ESPRIT, IEEE Trans. Signal Processing, 44, 316–328, Feb. 1996. [25] Zoltowski, M.D.,Kautz,G.M.andSilverstein,S.D.,Beamspaceroot-MUSIC, IEEETrans .Signal Processing, 41, 344–364, Jan. ... ESPRIT, IEEE Trans. Signal Processing, 40, 867–881, Apr. 1992. [23] Xu, G., Roy, R.H. and Kailath, T., Detection of number of sources via exploitation of centro- symmetry property, IEEE Trans. Signal Processing, 42,...

Ngày tải lên: 13/12/2013, 00:15

... Estimation of signal parameters via rotational invariance techniques-ESPRIT, Proc. 19th Asilomar Conf. on Signals, Systems, and Computers, Asilomar, CA, Nov. 1985. [24] Pillai, S.U., Array Signal Processing, Springer-Verlag, ... Speech, Signal Processing, ASSP-33(2), 806–811, Aug. 1985. [32] Stoica, P. and Nehorai, A., MUSIC, maximum likelihood and Cramer-Rao bound: Further results and comparisons, IEEE Trans. on Signal Processing, 38, ... fitting, IEEE Trans. on Signal Processing, 39(11), 2436–2448, Nov. 1991. [35] Viberg, M. and Ottersten, B., Sensor array processing based on subspace fitting, IEEE Trans. on Signal Processing, 39(5), 1110–1120,...

Ngày tải lên: 13/12/2013, 00:15

... desired response signal d(n) consists of a sum of a broadband signal and a nearly periodic signal, and it is desired to separate these two signals without specific knowledge about the signals (such ... y(n) is computed. The output signal is compared to a second signal d(n), called the desired response signal, by subtracting the two samples at time n. This difference signal, given by e(n) = d(n) ... consult journals such as the IEEE Transactions on Signal Processing as well as the proceedings of yearly conferences and workshops in the signal processing and related fields. References [1] Kuo,...

Ngày tải lên: 13/12/2013, 00:15

... models of stationary random processes, whether signal or noise, have been found to be useful in a wide variety of signal processing tasks such as signal detection, estimation, filtering, and classification, ... N. (16.30) c  1999 by CRC Press LLC [17] Kassam, S.A., Signal Detection in Non-Gaussian Noise, Springer-Verlag, New York, 1988. [18] Shao, M. and Nikias, C.L., Signal processing with fractional lower order moments: ... fitting. c  1999 by CRC Press LLC Tugnait, J.K. “Validation, Testing, and Noise Modeling” Digital Signal Processing Handbook Ed. Vijay K. Madisetti and Douglas B. Williams Boca Raton: CRC Press...

Ngày tải lên: 13/12/2013, 00:15

... REAL-TIME DIGITAL SIGNAL PROCESSING 1 Introduction to Real-Time Digital Signal Processing Signals can be divided into three categories ± continuous-time (analog) signals, discrete-time signals, and digital ... design and implement digital systems for processing digital signals using digital hardware. However, the analysis of such signals and systems usually uses discrete-time signals and systems for ... term `discrete-time' and `digital& apos; inter- changeably. Digital signal processing (DSP) is concerned with the digital representation of signals and the use of digital hardware to analyze,...

Ngày tải lên: 14/12/2013, 13:15

... s(n) ) 2 (32.35) where s(n) is the input speech signal and y(n) is the output speech signal. The two signals are sufficiently staggered to account for the delay in the processing. The signal- to-noise-ratios were ... these methods demand a lot of memory and processing power. RAP operates on only one row at a time, which makes it a useful sample-by-sample method in adaptive signal processing. Further, the matrix A ... for speech processing, Intl. Symp. Signals, Syst. Electron., San Francisco, CA, 1995. [23] Miyoshi, M. and Kaneda, Y., Inverse filtering of room acoustics, IEEE Trans. Acoustics, Speech, Signal Process., 36(2),...

Ngày tải lên: 22/12/2013, 21:17

Ngày tải lên: 22/12/2013, 21:17

... Trussell, H.J., Digital signal restoration using fuzzy sets, IEEE Trans. Acous- tics, Speech, Signal Process., 34, 919–936, 1986. [14] Trussell, H.J.andCivanlar, M.R.,Thefeasiblesolutioninsignalrestoration, IEEETrans.Acoust., Speech, ... as f † =  H T H  −1 H T g = H † g, (25.32) c  1999 by CRC Press LLC Podilchuk, C. Signal Recovery from Partial Information” Digital Signal Processing Handbook Ed. Vijay K. Madisetti and Douglas B. Williams Boca ... Formulation of the Signal Recovery Problem Signal recovery can be viewed as an estimation process in which operations are performed on an observed signal in order to estimate the ideal signal that would...

Ngày tải lên: 22/12/2013, 21:17

... Elementary Digital Signals There are several ways to describe signals. For example, signals encountered in com- munications are classified as deterministic or random. Deterministic signals are ... the input signal, and ynxn À 13:1:12 is the output signal, which is the input signal delayed by one unit (a sampling period). In fact, the signal xn À 1 is actually the stored signal x(n) ... equation of the digital system expressed as ynbxnÀayn À 1, 3:2:16 where each output signal yn is dependent on the current input signal xn and the previous output signal yn À 1....

Ngày tải lên: 24/12/2013, 01:16

... on Applications of Signal Processing to Audio and Acoustics, 1989. [17] Sinha,D.andTewfik,A.H.,Lowbitratetransparentaudiocompressionusingadaptedwavelets, IEEE Trans. Signal Processing, 41(12), ... typical (trumpet) signal. The staircase curve is thecalculated perceptual threshold, and thevarying curve is the short- term spectrum of the trumpet signal. Note that a great deal of the signal is below ... Filterbank — Converts the input signal into a form that extracts redundancies and is suitable for perceptual processing. ã Perceptual model Determines the irrelevancies in the signal, generates a perceptual threshold,...

Ngày tải lên: 19/01/2014, 19:20

... windows becauseofitsnear-optimaltransitionbandslopeandgoodultimaterejectioncharacteristic. Ascalar c  1999 by CRC Press LLC Davidson, G.A. Digital Audio Coding: Dolby AC-3” Digital Signal Processing Handbook Ed. Vijay K. Madisetti and Douglas B. Williams Boca ... audio compressionalgorithmsistomaximallyreducetheamountofdigitalinformation(bit-rate)required for conveyance of an audio signal while rendering differences between the original and decoded signals inaudible. Digital audio compressionisusefulwhereverthereisaneconomicbenefitrealizedbyreducingthe bit-rate. ... Overview Inordertomoreefficientlytransmitorstorehigh-quality audio signals, it is oftendesirabletoreduce the amount of information required to represent them. In the case of digital audio signals, the amount of binary information...

Ngày tải lên: 19/01/2014, 19:20

... 5-channel signal, and a subsequent down-mixingofthelatteroneintoa2-channelsignal[55]. The2-channelsignal, threecontributions fromthe 5-channel signal, and two contributions from the 7-channel signal ... uses the 2-channel signal directly, or it employs matrixing to reconstruct 5- or7-channelsignals. Otherformats arepossible, suchasstoringa 5-channelsignalandan additional stereosignalinsimulcastmode,withoutdown-mixingthestereosignalfromthemultichannelsignal. A ... and Signal Process., ASSP-34, 1153–1161, 1986. [22] Malvar, H.S., Signal Processing with Lapped Transforms, Artech House, 1992. [23] Yeoh, F.S. and Xydeas, C.S., Split-band coding of speech signals...

Ngày tải lên: 19/01/2014, 19:20

Ngày tải lên: 19/01/2014, 19:20

Ngày tải lên: 19/01/2014, 19:20

Ngày tải lên: 19/01/2014, 19:20

Ngày tải lên: 19/01/2014, 19:20