Báo cáo hóa học: " Research Article An Efficient Implementation of the Sign LMS Algorithm Using Block Floating Point Format" potx

... on Advances in Signal Processing Volume 2007, Article ID 57086, 7 pages doi:10.1155/2007/57086 Research Article An Efficient Implementation of the Sign LMS Algorithm Using Block Floating Point ... [7]foraBFPreal- ization of the sign LMS algorithm [13 ]. The sign LMS algo- rithm forms a popular class of adaptive filters within the LMS family, w...

Ngày tải lên: 22/06/2014, 23:20

... considerably influences on other parameters, it seems sufficient to sim- ulate only the average number of the multihops in order to discuss the efficiency of the sensor network and the validity of the address assignment ... A n is the address of the nth child node of A parent ,and d is the node depth. Figure 2 shows an example of addressing assignment, where C m is...

Ngày tải lên: 21/06/2014, 23:20

... n i is a fixed number of channels for class i trafficand r i is a revenue rate of class i traffic. Obviously, the Erlang loss function B(ρ, n) is an increasing function of ρ. Therefore, the optimal solution ... solution of the simplified PDAC problem and calculate the blocking probability for the obtained values. The results are shown in the Table 1. Note that  5 i =1 C i =...

Ngày tải lên: 21/06/2014, 05:20

... Hilbert transformation of s(t), a(t)is the signal instantaneous amplitude, and φ(t) is the signal instantaneous phase. The instantaneous frequency (IF) describes the varia- tions of the signal frequency ... in terms of the mean absolute error (MAE) and the mean squared error (MSE) reduction in spite of the artifacts present in the time-frequency distribution of th...

Ngày tải lên: 21/06/2014, 07:20

... the other hand, the load capacitance of the off-chip buses are usually very high, and when they reach two orders of magnitude larger than that of on-chip cells, the power reduction rate can be ... by MPBI. The power consumption reduction rate can be achieved approximately the same accordingly when the load capacitance of the off-chip bus reaches two orders of the mag...

Ngày tải lên: 21/06/2014, 20:20

... without the backpack while keeping the rest of the image intact. The basic idea of backpack removal is to reconstruct the GEI w ith a backpack using the principal components (e igenvectors) of the ... projections [21], and uniprojective features [22]. The performances of the previous methods are cited directly from other research [15, 20–22] and compared with tha...

Ngày tải lên: 21/06/2014, 20:20

... soon as they are computed. In a static network, there is no change in the topology and the performance indices of the observation made by the nodes. This leads to fixed performance indices of the ... network may change because of the death of the nodes which occurs due to exhaustion of the battery power or hardware failure of the nodes. The change in topology du...

Ngày tải lên: 21/06/2014, 23:20

... dispersion of the watermarks in the spatial domain in the case of the conventional technique before showing the portions/parts of the image removed by the segmentation process (i.e., the portion of the watermark ... solving the following equations of [34] β = F −1  m 1 √ m 2  ,(9) where m 1 = (1/L)  L i=1 |x i | and m 2 = (1/L)  L i=1 x 2 i are the estimate...

Ngày tải lên: 22/06/2014, 00:20

... transmitted from the first transmit an- tenna, and a 2 and a ∗ 1 are transmitted from the second trans- mit antenna during the first and second transmission peri- ods, respectively. The differential ... (11), the operators ( ·) I and (·) Q represent the real and imaginary parts of a complex symbol, respectively, and the operator ( ·) 2K takes modulo 2K of the operand. The...

Ngày tải lên: 22/06/2014, 06:20

... transmission periods be a 1 and a 2 . There- fore, a 1 and −a ∗ 2 are transmitted from the first transmit an- tenna, and a 2 and a ∗ 1 are transmitted from the second trans- mit antenna during the ... two transmit and one receive antennas, and denote the channel gains corresponding to two transmit antennas with h 1 and h 2 , respectively. Let the dummy symbols to be transmitted dur...

Ngày tải lên: 22/06/2014, 19:20