finite impulse response filters

... δ(n) is the unit sample response or the unit impulse response denoted by h(n) So the samples of the unit impulse response h(n) = b(n), which means that the unit impulse response h(n) of the discrete-time ... if there are no zeros on the unit circle, the phase response becomes a 258 FINITE IMPULSE RESPONSE FILTERS Phase response unwrapped Phase response of type I FIR filter −2 Phase angle in radians ... frequency response of the product of these two 264 FINITE IMPULSE RESPONSE FILTERS 1.1 1.0 0.9 Hid(w) 0.8 0.7 H(w) 0.6 0.5 0.4 0.3 0.2 0.1 0.0 −0.1 0.2π 0.4π 0.6π π 0.8π Figure 5.6 Frequency response...

Ngày tải lên: 29/09/2013, 21:20

... affects the filter frequency response performance Finite precision coefficients generated by PCLS can be directly implemented without quantization ensuring correct frequency response performance Least ... serial-by-parallel multipliers can be found in [2] THE DESIGN OF BIT-SERIAL PEAK-CONSTRAINED LEAST SQUARES FIR FILTERS The method of PCLS can be used to generate finite precision coefficients that control the minimum ... into the transposed FIR filter architecture [10] is beneficial Rapid Prototyping PCLS Bit-Serial FIR Filters 557 Table 1: Summary of data for bit-serial component library Component Width Height Latency...

Ngày tải lên: 23/06/2014, 01:20

... frequency used in H (ej ω ) 190 INFINITE IMPULSE RESPONSE FILTERS where H (j ω) is the frequency response, |H (j ω)| is the magnitude response, and θ (j ω) is the phase response We also find the magnitude ... 194 INFINITE IMPULSE RESPONSE FILTERS 1.2 Magnitude 0.8 0.6 0.4 0.2 n=2 n=6 0 0.5 Figure 4.3 2.5 1.5 Frequency in rad/sec 3.5 Magnitude responses of Butterworth lowpass filters The magnitude response ... magnitude response of the prototype filter given by (4.46) It has a magnitude of −0.5 dB at = and approximately −33 dB at = 5, which exceeds the specified value 202 INFINITE IMPULSE RESPONSE FILTERS...

Ngày tải lên: 29/09/2013, 21:20

... coefficient, so the MPNLMS algorithm can consistently converge to the steady state for sparse impulse response The SPNLMS algorithm [15] is proposed to reduce the heavy computational complexity ... step-size proportionate affine projection algorithm (VSS-PAPA) for the identification of sparse impulse response Theoretically, in a noise free environment, PAPA has optimal convergence speed and ... fast proportionate algorithm with variable step-size technique for identification of sparse impulse response The organization of this article is as follows In Section 2, we briefly overview the...

Ngày tải lên: 21/06/2014, 20:20

... 0.4 0.2 0 10 12 14 16 Tap index True channel Estimated channel Figure 1: Estimated channel impulse response distorted by additive noise ρ(τ, t) τ 11 13 15 (¢50 ns) gth en gl gin era Av t Figure ... 6333953B1, December 2001 [2] J E Hudson, “Communication system and methods of estimating channel impulse responses therein,” US patent 0043887 A1, March 2003 [3] E G Larsson, G Liu, J Li, and G B Giannakis, ... noise variance, which is determined in the following way Let us assume that the true CIR is a Dirac impulse, that is, NP = Then, the ˇ first sample of the estimated CIR h0,i is the direct path includˇ...

Ngày tải lên: 22/06/2014, 22:20

... given by k H H E Φk+1 ΦH = E Ck Φk ΦH Ck + E Bk Bk k+1 k (11) Analysis of Adaptive Volterra Filters The Finite- Alphabet Input Case From the analysis of this recursion, all mean square performances ... signal is a symbol sequence belonging to a finite-alphabet set ANALYSIS OF ADAPTIVE VOLTERRA FILTERS: THE FINITE- ALPHABET CASE 3.1 Input signal model In digital transmission contexts, when dealing ... excite the algorithm in all directions which spans the space Analysis of Adaptive Volterra Filters The Finite- Alphabet Input Case Proof If the alphabet set does not span the space, we can find a...

Ngày tải lên: 23/06/2014, 01:20

... CHAPTER DYNAMIC MODEL OF IMPULSE BEHAVIOR OF CONCENTRATED GROUNDS AT HIGH CURRENTS 72 6.1 INTRODUCTION 72 6.1.1 Breakdown Process 74 6.1.2 Impulse Resistance ... from the top of a driven rod when impulsed in wet loamy sand (soil C) in the presence of rain sprays [26] 64 Fig 5.5 Resistivity profiles in Liew’s dynamic -impulse resistance model 66 Fig ... 1.1.3 Review of Liew’s work on dynamic model of impulse characteristics of concentrated earths In 1974, Liew and Darveniza developed a dynamic model of impulse characteristics of concentrated earths...

Ngày tải lên: 08/11/2015, 17:33

... q Response. Buffer n n q q q q q q FALSE : không đặt buffer TRUE : đặt buffer lưu tạm liệu xuất < %Response. Buffer=TRUE/FALSE%> : đặt đầu trang ASP Response. Flush : xuất liệu buffer cho client Response. Clear ... xóa liệu vùng đệm Response. End : kết thúc xử lý Response. Expires : đặt thời gian (min) cache (-1:no cache) Response. ExpiresAbsolute = #date# Khoa CNTT - ĐHKHTN Bài Đối tượng Response (4) n Kiểm ... blnErrorWritten = True Response. Write ", line " & objASPError.Line Response. Write ", column " & objASPError.Column Response. Write Server.HTMLEncode(objASPError.Source) Response. Write "" &...

Ngày tải lên: 22/08/2012, 10:37

Ngày tải lên: 06/09/2012, 15:56

... (also called finite impulse response or FIR) and by recursion (also called infinite impulse response or IIR) Filters carried out by convolution can have far better performance than filters using ... custom filters can be used for deconvolution, a way of counteracting an unwanted convolution FILTER IMPLEMENTED BY: FILTER USED FOR: Convolution Recursion Finite Impulse Response (FIR) Infinite Impulse ... these filters is to separate one band of frequencies from another Custom filters are used when a special action is required by the filter, something more elaborate than the four basic responses...

Ngày tải lên: 13/09/2012, 09:50

... an infinitely long impulse response (IIR), composed of sinusoids and exponentials The impulse response of the moving average is a rectangular pulse (finite impulse response, or FIR) This algorithm ... recursive filters in more detail Be aware that the moving average recursive filter is very different from typical recursive filters In particular, most recursive filters have an infinitely long impulse ... this Chapter 15- Moving Average Filters 283 20 -20 Amplitude (dB) FIGURE 15-4 Frequency response of the Blackman window and Gaussian filter kernels Both these filters provide better stopband...

Ngày tải lên: 13/09/2012, 09:50

... inversion of the low-pass filter kernel Chapter 16- Windowed-Sinc Filters 1.50 293 40 a Frequency response 20 b Frequency response (dB) Amplitude (dB) Amplitude 1.00 0.50 -20 -40 -60 -80 -100 ... filter kernel The frequency response of the ideal low-pass filter is shown in (a), with the corresponding filter kernel in (b), a sinc function Since the sinc is infinitely long, it must be truncated ... changes in the frequency response, (d) The solution is to multiply the truncated-sinc with a smooth window, (e), resulting in the windowed-sinc filter kernel, (f) The frequency response of the windowed-sinc,...

Ngày tải lên: 13/09/2012, 09:50

... response, which will be infinite in length In other words, the "good" frequency response corresponds to something that cannot be represented in a computer, an infinitely long impulse response When we ... the infinitely long impulse response wraps up (aliases) into the N points When this aliasing occurs, the frequency response changes from "good" to "bad." Fortunately, windowing the N point impulse ... frequency response to be what we want by defining it at an infinite number of points between and 0.5 That is, we create a continuous curve The inverse DTFT is then used to find the impulse response, ...

Ngày tải lên: 13/09/2012, 09:50

... exponentially decays Since this impulse response in infinitely long, recursive filters are often called infinite impulse response (IIR) filters In effect, recursive filters convolve the input signal ... are the pulse responses of each of the three filters The pulse response is nothing more than a positive going step response followed by a negative going step response The pulse response is used ... question of how long the impulse response is, don't say "infinite." If you do, you will need to pad each signal segment with an infinite number of zeros Remember, the impulse response can be truncated...

Ngày tải lên: 13/09/2012, 09:50

... response to the Bam earthquake with specific emphasis on the pre-hospital medical management during the first days Our aim was to identify obstacles and facilitators in pre-hospital medical response ... factors related to the pre-hospital medical services during the medical response to the Bam earthquake Pre-hospital medical response Obstacles Facilitators Triage - Absence of triage plan - Absence ... article we focused on the pre-hospital issues of the early response phase to the Bam earthquake The key elements in the pre-hospital medical response to disasters are correct triage, immediate treatment...

Ngày tải lên: 25/10/2012, 09:56

... inflammatory response (SIRS) on arrival, community-acquired infection, sepsis, Acute medicaland septicaccording to 437) Acute medical patients according to systemic inflammatory response (SIRS) ... Basic characteristics and outcome among acute medical patients according to systemic inflammatory response (SIRS) on arrival prospective design with identification of symptoms and infection on arrival, ... 28-day mortality SIRS symptoms provide information on a patient with a highly activated immune response due either to infections or to other conditions, and a systematic registration of the symptoms...

Ngày tải lên: 25/10/2012, 09:56

Ngày tải lên: 25/10/2012, 10:02

... Most studies seek for the detection of polymorphisms that are associated with the individual’s response to tacrolimus However, in order to secure the appropriate administration of tacrolimus, ... compared to CYP3A5*3 homozygotes Conclusions We proved that CYP3A5 genotype affects individuals’ response to tacrolimus both in the early and late phase after renal transplantation However, given ... Med Sci Monit 2008; 14: CR251-4 Lynch T, Price A The effect of cytochrome P450 metabolism on drug response, interactions, and adverse effects Am Fam Physician 2007; 76: 391-6 Anglicheau D, Legendre...

Ngày tải lên: 26/10/2012, 09:32

... sustained virological response; WBC = white blood cell DISCUSSION The overall rate of response was 76% comparable with those reported in the previous US studies of 55% Responses were better for ... JW, Wang GQ, Sun LJ, et al Predictive value of rapid virological response and early virological response on sustained virological response in HCV patients treated with pegylated interferon alpha- ... HIV co –infection Higher response rates among Asians have been noted before This may be related to the IL28B gene polymorphism as it is apparently associated with higher response to treatment among...

Ngày tải lên: 26/10/2012, 09:39

Ngày tải lên: 06/11/2012, 13:48