Báo cáo hóa học: "Research Article Block Interleaved Frequency Division " ppt

... with interleaved subcarrier allocation, as described in [13], also denoted as Interleaved Frequency Division Multiple Access (IFDMA) in the original paper [14]or Single-Carrier Frequency Division ... Wireless Communications and Networking Volume 2009, Article ID 720973, 18 pages doi:10.1155/2009/720973 Research Article Block Interleaved Frequency Division Multiple Acce...

Ngày tải lên: 21/06/2014, 22:20

... range so that the number of block matching between the rotated blocks and the current block is fixed. For asearchangleintervalΔθ, block matching will be performed for each block- rotation of nΔθ, n ∈ ... composite reference blocks are the rotated versions of the reference block. Block matching is then performed be- tween these rotated reference blocks and the current picture block....

Ngày tải lên: 21/06/2014, 08:20

... 1000 1200 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 Frequency Samples True frequencies Estimated frequency (a) 20 40 60 80 100 120 140 SNR = 0dB 6dB RMSE (frequency) Time 12345678910 Frequency estimation error (f1) SNR = SNR ... in Signal Processing Volume 2010, Article ID 172703, 13 pages doi:10.1155/2010/172703 Research Article Robust Blind Frequency and Transition Time Estimation for F...

Ngày tải lên: 21/06/2014, 08:20

... 1.5 2 ×10 5 Time 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 Frequency Rock-like (a) Spectrogram of a rock-like music signal. X-axis: t ime samples. Y- axis: normalized frequency where maximum frequency corresponds to sampling frequency/ 2. ... 1.5 2 ×10 5 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 Time Frequency Classical-like (b) Spectrogram of a classical-like music signal. X-axis: time...

Ngày tải lên: 21/06/2014, 08:20

... method based on frequency diversity is described to suppress grating lobes in sparse MIMO aperture radars. 3. MIMO Radar w ith Frequency Diversity We call a MIMO radar array with frequency diversity ... lobe for the frequency f 10 is near in the 3-dB beamwidth of the 1st grating lobe for the frequency f 1 . However, when Δ f is larger than 268 MHz, the 2nd grating lobe for the freq...

Ngày tải lên: 21/06/2014, 20:20

... orthogonal frequency division multiplexing frequency offset correction,” IEEE Transactions on Communications, vol. 42, no. 10, pp. 2908–2914, 1994. [13] M. Luise and R. Reggiannini, “Carrier frequency ... algorithms for the carrier frequency and sampling frequency offsets estimation and tracking were tested for frequency offsets of δf = 0.01 and δf = 0.05 and the sampling frequenc...

Ngày tải lên: 21/06/2014, 22:20

... a time division multiplexing (TDM) or frequency division multiplexing (FDM) manner. The splitting of resources (either in frequency or time domain) will require the use of two time or frequency ... Corporation EURASIP Journal on Wireless Communications and Networking Volume 2009, Article ID 731317, 11 pages doi:10.1155/2009/731317 Research Article Dynamic Relaying in 3GPP LTE-Ad...

Ngày tải lên: 21/06/2014, 22:20

... Journal on Advances in Signal Processing Volume 2011, Article ID 575706, 12 pages doi:10.1155/2011/575706 Research Article Frequency- Domain Block Signal D etection with QRM-MLD for Training Sequence-Aided ... Q H .InTA-SC,CPisreplacedbya known TS, which is a part of DFT block at the receiver, and TS in the previous block acts as CP in the present block as shown in Figure 1. In o...

Ngày tải lên: 21/06/2014, 08:20

... independent from block to block, and those within one block s i m are also independent. (Note that when error correcting coding is applied to the transmitted signals, signals within a same block may ... of which transmits a total of T blocks, arranging the blocks of the users in an M a ×T matrix where the top-left entry is the first block of the first user, the blocks are decoded seque...

Ngày tải lên: 21/06/2014, 09:20

... Communications and Networking Volume 2010, Article ID 327041, 14 pages doi:10.1155/2010/327041 Research Article Combined Distributed Turbo Coding and Space Frequency Block Coding Techniques V. Bota, 1 Zs. ... Distributed Space -Frequency Coding (DSFC) or the application of the existing space-time /frequency codes in a distributed manner for the wireless relay-based systems. The use...

Ngày tải lên: 21/06/2014, 11:20