Báo cáo hóa học: " Research Article An Efficient Watermarking Technique for the Protection of Fingerprint Image" doc
Báo cáo hóa học: " Research Article An Efficient Watermarking Technique for the Protection of Fingerprint Image" doc
... number of hidden information bits. The results
are plotted in Figures 7 and 8 for the DCT and the DWT
domains, respectively. As can be seen, for images form DB2
and DB3, the BER is lower for the ... For the
sake of fair comparison, the performance of the proposed
technique is compared against the conventional technique
using the same decoder. By conventio...
Báo cáo hóa học: " Research Article An Efficient Method for Proportional Differentiated Admission Control Implementation" potx
... 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 ... Erlang B Formula. We assert that for the
desired accuracy of the approximation (6)anoffered load
has to exceed a certain threshold. The concrete value of the
thre...
Báo cáo hóa học: " Research Article An Efficient Algorithm for Instantaneous Frequency Estimation of Nonstationary " pot
... 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 ... the IF and
the instantaneous phase estimation. The obtained IF is then
used for a new calculation of the spectrogram which is
further used for signal demodulation. In th...
báo cáo hóa học:" Research Article An Efficient Segmental Bus-Invert Coding Method for Instruction Memory Data Bus Switching Reduction" doc
... 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 ... the length of the code sequence, s
ij
the jth bit of
word i (denoted by s
i
) in the sequence, and ⊕ the logic XOR
operation.
Without any bus encoding, the total number...
báo cáo hóa học:" Research Article An Efficient Gait Recognition with Backpack Removal" potx
... We
denote the training GEIs without a backpack by G
w/o
(i) ∈
R
q
,(i = 1, , l), where l is the number of training images
and q is the number of pixels of each GEI. The average and
the covariance of the ... reconstructions and error compensation to remove the backpack from the gait representation and then conduct gait
recognition. Experiments performed with the CASIA...
Báo cáo hóa học: " Research Article An Efficient Multibit Aggregation Scheme for Multihop Wireless Sensor Networks" pptx
... indices
Here we show how the performance indices P
i
mn
,forany
node S
i
, can be computed when the performance indices,
p
i
mn
of its observation and the performance indices P
j
mn
of
the decision made ... 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 fixe...
Báo cáo hóa học: " Research Article An Efficient Addressing Scheme and Its Routing Algorithm for a Large-Scale Wireless Sensor Network" pptx
... multihops in the sensor network. For example, the
less the average number of the multihops, the shorter the
end to end delay, that is, the delayed time between each
node due to the reduction of the traffic ... smaller the number
of multihops is, the shorter the end to end delay is, the
higher the packet delivery rate is, and the smaller the routing
overhe...
Báo cáo hóa học: " Research Article An Efficient Differential MIMO-OFDM Scheme with Coordinate Interleaving" pdf
... 4-, 8-, 16-, and 32-states. The T2 trellis op-
timized for TC-CIOD improves the performance of differ-
ential TC-CIOD by 0.4 dB. For the sake of comparison, the
CER performances of the nondifferential ... considered, the selection of the channel interleaver
α considerably affects the CER performances of TC-CIOD
and TC-STBC systems. We performed the simulations fo...
Báo cáo hóa học: " Research Article An Efficient Differential MIMO-OFDM Scheme with Coordinate Interleaving" pptx
... 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 ... 4-, 8-, 16-, and 32-states. The T2 trellis op-
timized for TC-CIOD improves the performance of differ-
ential TC-CIOD by 0.4 dB. For the sake of comparison, the
CER perform...
Báo cáo hóa học: " Research Article An Efficient Kernel Optimization Method for Radar High-Resolution Range Profile Recognition" docx
... l
1
-norm and 2-norm Gaussian
kernels.
Gaussian kernels perform better than with l
2
-norm Gaussian
kernel because of the different performances on An2 6. Due
to the modulability of the propeller of An2 6 ... The 2nd and the 5th segments of Yark-42,
the 5th and the 6th segments of An- 26, the 6th and the 7th
segments of Cessna Citation S/II are chosen as the...