Báo cáo hóa học: " Robust time delay estimation for speech signals using information theory: A comparison study" pot

... RESEARCH Open Access Robust time delay estimation for speech signals using information theory: A comparison study Fei Wen * and Qun Wan Abstract Time delay estimation (TDE) is a fundamental subsystem ... is an information- theoretic measure of the information that one random variable contains about another random variable. If we consider two variables x 1 We...

Ngày tải lên: 21/06/2014, 01:20

... pressure ventilation for bilateral diaphragm paralysis after pediatric cardiac surgery. Interact Cardiovasc Thorac Surg 2009, 8:171-172. 30. Chin K, Uemoto S, Takahashi K, Egawa H, Kasahara M, Fujimoto Y, ... [29] case reports (cardiac surgery) Bilateral diaphragm paralysis PICU, 2 0.9-3.5 c BIPAP Facial mask, Nasopharyngeal tube 100 Improved RR, gas exchange Major complication: 100% (respi...

Ngày tải lên: 21/06/2014, 03:20

... (53%) FBP Chip FPGA Image Preprocess FPGA ✲✛ Right Camera ✲ Left Camera ✲ ✛ Disparity Out to Grabber board (a) Overall system (b) Hardware board Figure 17 The overall hardware system. (a) Overall system. (b) Hardware ... systolic array processors Figure 1 Alternative architectures for parallel algorithms. (a) Parallel processors with a global memory. (b) Massive systolic array processors...

Ngày tải lên: 21/06/2014, 01:20

... Both amplify-and-forward (AF) and decode-and-forward (DF) protocols developed for one-way relay channels are extended to the half-duplex additive white Gaussian noise (AWGN) two-way relay channel ... are assumed to be static over 50 time slots. The first time slot is used to estimate the channel information and the remaining are used for data transmission. For data transmission, BP...

Ngày tải lên: 21/06/2014, 17:20

... model rather than a linear model used in previous research. A detailed analysis of clock offset estimation assuming a symmetric exponential delay model was presented in [7]. For a known fixed delay, ... to another, for example, the sum of transmission time, propagation delay, reception time, X r and Y r denote the variable portion of delay and are as- sumed to be independ...

Ngày tải lên: 22/06/2014, 19:20

... provide a true evaluation of the coder performance. A second comparison was also performed by comparing the HE-AAC profile of the MPEG-4 audio at the same bitrates to that was achieved by the ATFT ... bit allocations were made. In arriving at the final bit allocations informal MOS tests were conducted to compare the quality of the 8 audio samples before and af- ter quantization stage. In...

Ngày tải lên: 22/06/2014, 19:20

... [1]. Channel state informa- tion is assumed to be available at the transmitter and power adaption is performed with a total power constraint for each channel realization. T he capacity maximization ... spatial water-filling achieves al- most the same capacity as space -time water-filling. However, for Rayleigh channels with shadowing variance ρ = 8, the space -time water-filling algorith...

Ngày tải lên: 22/06/2014, 22:20

... is performed automatically on all data streams based on a comparison of the separated and demodulated signals at the Rx and the data coming from the PRBS-data gener ator are also programmed inside ... 5 Tx FPGA transmitter with parallel M-PAM data source sends training piolts, adapts modulation; preprocesses data for SVD-MIMO or adaptive channel inversion D/AD/AD /A Data 1 Data 2 Dat...

Ngày tải lên: 22/06/2014, 23:20

... 3(c) and 3(d),aframeof the Foreman sequence and its macroblock allocation map (MBAmap) for three classes, according to the above rules, are presented. The area regarded as being of high-importance mainly ... optimal classification of macroblocks and the optimal channel rate allocation are achieved by iterating two interdependent steps. Dynamic programming techniques are used for the channe...

Ngày tải lên: 22/06/2014, 23:20

... the pilot. The performance results are again averaged over 1000 random channel realizations, where for each chan- nel realization, we consider 10 random data and noise re- alizations corresponding ... Performance comparison for U = 15. for U = 1, U = 15, and U = 31 users, respectively. The performance results are averaged over 1000 random chan- nel realizations, where for each chann...

Ngày tải lên: 23/06/2014, 01:20