amp applied signal processing series

... taps with 8 kHz sampling frequency in a usual office, gives a good performance An FIR filter is pre-ferred because it provides much convenience when applied in digital signal processing For RIRs ... PropagatingPaths for Audio Signal Separation Bin Yin Faculty of Electrical Engineering, Eindhoven University of Technology, P.O Box 513, 5600 MB Eindhoven, The Netherlands Storage Signal Processing Group, ... 0 −0 5 Filter taps (sample) (a) 10 0 −10 −20 −30 Frequency (kHz) (b) 1 0.5 0 −0.5 Filter taps (sample) (c) 10 0 −10 −20 −30 Frequency (kHz) (d) 1 0.5 0 −0 5 Filter taps (sample) (e) 10 0 −10 −20

Ngày tải lên: 23/06/2014, 00:20

... of [5] The sample experimental results are shown in Figures13and14 These results demonstrate Trang 9Figure 13: Sample experimental results by the proposed method.Trang 10Figure 14: Sample experimental ... Engineering, Hong-Ik University, Seoul 121-711, Korea Email: kmlee@wow.hongik.ac.kr Sang Uk Lee Signal Processing Laboratory, School of Electrical Engineering, Seoul National University, Seoul 151-742, ... of clusters of finite representative face samples Let fm(m= 1, , M) be the M representative face models selected from the K (K > M) training samples in the face space F, and F mthe individual

Ngày tải lên: 23/06/2014, 00:20

... beamformer Adaptive beamformer Data processing Display processing Beamforming coe fficients Conventional beams out Conventional beamformer & base bander FFT & Doppler binner Reference beam ... acceptable Beamforming, the processing of sensor signals into di-rectional beams, was selected as the application subset that would be benchmarked It is a generic processing func-tion for both ... Baseband hydrophone samples Conventional beams & coe ffs. into adaptive beamformer Adapted beams out The conventional beamformer The adaptive beamformer Figure 7: Sonar functional processing chains

Ngày tải lên: 23/06/2014, 00:20

... are indepen-dent of any postsynaptic effects The chip-output signal was a current below 100 nA that was amplified using a cur-rent sense amplifier to a voltage which was measured on an oscilloscope ... 1) This vibration is converted into a neural signal by the IHCs and results in the firing of the auditory nerve cells The transduc-tion of the sound signal by the IHC is nonlinear and exhibits ... through diffusion at a rate lc(t) and some is actively returned to the reprocessing store at a rate rc(t): dc (d) The reprocessing store receives transmitter at a rate rc(t) and returns it to

Ngày tải lên: 23/06/2014, 00:20

... enhanced center channel (FT), and the KLT, the signal-dependent KLT is adopted in the preprocessing stage because it is theoretically optimal in decorrelating signals across channels If M is the KLT ... error sense The KLT preprocessing method was demonstrated to im-prove the multichannel audio coding efficiency in our previ-ous work [14,15,16] After the preprocessing stage, signals in these relatively ... original multichannel audio sig-nalsV. Suppose that an input audio signal hasn channels, then the covariance of KL transformed signals is E
U ¯U¯ T = E
(M ¯V)(M ¯V) T = ME
V ¯V¯ T M T = MC V

Ngày tải lên: 23/06/2014, 00:20

... intervals Trang 5Imager arrayImage processing Stored templates Figure 6: Chip layout (light shield layer obscures all details in mi-crograph) V dd d Sample R Sample G Sample B V dd m Row select (a) ... filters, will then be provided directly to the processing circuit No change to the scanning or processing circuitry will be required To facilitate processing, a current mode imaging approach is ... photodetectors and processing chip Our chip is designed for the recognition of objects based on their color signature There has been a limited amount of previous work on neuromorphic color processing

Ngày tải lên: 23/06/2014, 00:20

... Audio Signal Processing, Helsinki University of Technology, P.O Box 3000, FIN-02015 HUT, Espoo, Finland Email: paulo.esquef@hut.fi Matti Karjalainen Laboratory of Acoustics and Audio Signal Processing, ... lower-order models to analyze subband signals Moreover, the subband signals can be down sampled, as their band-width is reduced compared to that of the original signal As a consequence, the implied ... long signals, it may yield poor results if based on few signal samples only Therefore, the criterion upon which the value of fs,zoom is chosen should also take into account the number of samples

Ngày tải lên: 23/06/2014, 00:20

... analog signal processing and dig- ital signal processing techniques for real-world processing [43]. Our goal in CADSP is to build systems that benefit from the advantages of both types of signal processing ... analog-digital signal processing framework Neither analog signal processing nor digital signal process- ing can exist in current technologies without the other; that is, real-world signals are analog ... on Applied Signal Processing [16] K Boahen, “The retinomorphic approach: pixel-parallel adaptive amplification, filtering, and quantization,” Analog Integrated Circuits and Signal Processing,

Ngày tải lên: 23/06/2014, 00:20

... Acoustics, Speech, Signal Processing, vol 2, pp 653– 656, Hong Kong, China, April 2003 [11] W Li and L Wanhammar, “A pipeline FFT processor,” in Proc IEEE Workshop on Signal Processing Systems, ... when the signal-to-channel noise is better That is because the quantization noise effect will become more important if the signal-to-channel noise is better In the worst case of the signal to ... the receiver signal is cut toB bits and performs the fixed-point FFT calculation We perform the system simulation of 8192-point FFT and then get the relationship between the output signal-to-noise

Ngày tải lên: 23/06/2014, 00:20

... downsamplfilter-ing This is due to the fact that the excitation signal is of lowpass character leading to aliasing less than−20 dB As the role of the excitation signal is to set the initial amplitudes ... the multirate approach, running the res-onators at a much lower-sampling rate, for example, the 1/8 or 1/16 part of the original sampling frequency. It is shown in [42] that when only half of the ... synthesis, audio signal processing, structured audio, physical modeling, digital waveguide, piano. 1 INTRODUCTION Sounds produced by acoustic musical instruments can be described at the signal level,

Ngày tải lên: 23/06/2014, 00:20

... and Signal Processing, vol 28, no 4, pp 357–366, 1980. [5] H Hermansky, N Morgan, A Bayya, and P Kohn, “RASTA-PLP speech analysis technique,” in Proc IEEE Int Conf Acous-tics, Speech, Signal Processing, ... meth-ods propose to decompose the vector space of the noisy signal We remove the noise subspace and estimate the clean signal from the remaining signal space Such a decomposition ap-plies the KLT to ... of acoustic noise in speech using spec-tral subtraction,” IEEE Trans Acoustics, Speech, and Signal Processing, vol 27, no 2, pp 113–120, 1979. [3] D Mansour and B H Juang, “A family of distortion

Ngày tải lên: 23/06/2014, 00:20

... University of Tampere, Finland Institute of Signal Processing, Tampere University of Technology, Tampere, Finland Email: pertti.koivisto@tut.fi Jaakko Astola Institute of Signal Processing, Tampere University ... Institute of Signal Processing, Tampere University of Technology, Tampere, Finland Email: vladimir.melnik@nokia.com Oleg Tsymbal Department of Receivers, Transmitters, and Signal Processing, National ... Processing, Tampere University of Technology, Tampere, Finland Email: jaakko.astola@tut.fi Vladimir Lukin Department of Receivers, Transmitters, and Signal Processing, National Aerospace University

Ngày tải lên: 23/06/2014, 00:20

... aredigitized into blocks withN
samples The total number ofsamples in each block is generally set to 8000 samples or 8.0seconds of data for a 1 kHz sampling rate SettingN
to 8000samples creates a window ... the effectiveness of thesignal processing with various signal characteristics In addi-tion, the article does not qualify the adaptive filter’s effective-ness with various signal characteristics ... cancellation, details of the analog signal processing and FECG SNR enhancement via FECG av-eraging will not be discussed A detailed discussion of the analog signal processing is used to acquire the

Ngày tải lên: 23/06/2014, 00:20

... all length of the used signals is 160000 samples (10 seconds) We Trang 8−1 −0.5 0 0.5 1 Time (s) (a) Clean speech signals[k]. −1 −0.5 0 0.5 1 Time (s) (b) Noisy speech signaly0 [k] (SNR =−5 dB). ... speech segment of 160000 samples has been added, and the SNR of the microphone signals is 10 dB (K = L), for the SVD procedure and the GSVD proce-dure, using all microphone samples As can be clearly ... microphone signals, for example, using maximum likelihood sig-nals is not an easy task because of the room reverberation, the acoustic background noise, and the nonstationary character of the speech signal

Ngày tải lên: 23/06/2014, 00:20

... Engineering, Tampere University of Technology, P.O Box 553, 33101 Tampere, Finland Email: abdelmonaem.lakhzouri@tut.fi Elena Simona Lohan Institute of Communications Engineering, Tampere University ... probabilityPNLOS(i) Next BS Algorithm 1: Rician factor-based LOS detection R signal User signature I&D TK operator or POCS processing | · | 2 Noncoherent integration Block averaging Detection threshold ... 1shows the block diagram of the acquisition model including the addi-tional signal processing The discrete-time TK operator applied to a complex sig-nalx(n) is given by [27,28] Ψd  x(n) = x(n −1)x(n

Ngày tải lên: 23/06/2014, 00:20

... of sam-pling frequencies More precisely, voice can be sampled at various sampling rates, ranging through 4410, 6000, 7350, 8000, and 11025 samples per second The faster GSM is sam-pled, the better ... conversation, the sender timestamps each emitted audio packetP jwith the value of its local clock t sat the moment of the audio packet generation When an audio packet arrives, its timestampt sis compared ... difference between the values of t s andt r Using the same rate adopted for the sampling of the original audio signal at the sender site, the playout process at the receiver site fetches audio

Ngày tải lên: 23/06/2014, 00:20

... Journal on Applied Signal Processing Figure 13: Case Perfusion amplitude image obtained from an analysis without using cardiac information Compared with the amplitude image in Figure 12a, this amplitude ... Uh , 442 EURASIP Journal on Applied Signal Processing 103 180 102 160 101 Intensity 140 120 100 100 99 80 98 60 97 96 40 0.5 20 (a) Time (s) 1.5 (b) Figure 5: An example for extracting the systolic ... phase, from a perfusion signal, it requires to accurately locate the “turning points” from the signal Obviously, it is rather difficult if solely based on the perfusion signals as shown in Figures...

Ngày tải lên: 23/06/2014, 00:20

... widely used textbook VLSI Digital Signal Processing Systems (Wiley, 1999) and coedited the reference book Digital Signal Processing for Multimedia Digital Signal Processing Systems (Wiley, 1999) ... configuration parameters of the decoder To facilitate the description of the 534 EURASIP Journal on Applied Signal Processing Leftmost column L H1 Ik,1 ··· L·k Ik,k Ik,2  P1,k · · · Pk,k H = H2  = ... first and second L clock cycles, it works in check node processing mode and variable node processing mode, respectively In the check node processing mode, the decoder not only performs the computations...

Ngày tải lên: 23/06/2014, 00:20

... 604 EURASIP Journal on Applied Signal Processing Acquire samples Simulate input data FIR filter Executing on host Or Sensor Output data Analyze ... providing high-level abstraction for complex operations 606 EURASIP Journal on Applied Signal Processing For example, the details of a matrix multiply or the mechanics of block scheduling are ... crossing into or out of the current partition, producing EURASIP Journal on Applied Signal Processing Antenna A/D sampling Downconversion Chip-matched filter Multiuser detector Channel estimator...

Ngày tải lên: 23/06/2014, 00:20