Báo cáo hóa học: " Research Article Maximum Likelihood DOA Estimation of Multiple Wideband Sources in the Presence of Nonuniform Sensor Noise" doc

... wideband DOA estimation In the second example, we investigate the performance of the SC-ML and the AC-ML in estimating the DOA of a single source in the presence of nonuniform sensor noise. The ... THE WIDEBAND MAXIMUM- LIKELIHOOD DOA ESTIMATOR AND THE CRB IN THE PRESENCE OF NONUNIFORM SENSOR NOISE In this section, we derive a n...

Ngày tải lên: 22/06/2014, 06:20

... wideband DOA estimation In the second example, we investigate the performance of the SC-ML and the AC-ML in estimating the DOA of a single source in the presence of nonuniform sensor noise. The ... Comparison of the MSEs and the CRB in estimating DOA3 (three sources case). 6. CONCLUSION In this paper, we address the problem of maximum...

Ngày tải lên: 22/06/2014, 19:20

... considering the effect of intercell interference and intracell interference on the sector of interest in the central cell (denoted as sector 1 in BS 1). For this purpose, the interference from the ... taken into account. In this case, for a link of interest in sector 1 in BS 1, the interference will comprise 18 (6 BS × 3 sectors) intercell and 2 intracell links. Th...

Ngày tải lên: 21/06/2014, 23:20

... Dur ing the preamble we are interested in the estimation of the fractional delay, because the integer delay is recovered later by searching for the location of the UW w ithin the burst. The estimation ... timing estimation are investigated in [7, 8]. In part icular, timing estimates are derived in [7] by searching for the maximum of an approximate versi...

Ngày tải lên: 22/06/2014, 19:20

... angle increases (decreases) with the increasing size of the submatrices. This is mainly due to the fact that the larger the number of dimensions to construct the KSV matrix, the better the alleviation ... C. Thepairingprocedureof[15] is implemented by making good use of the diagonal elements of the cross-correlation matrix between different ULA embodying the corre...

Ngày tải lên: 21/06/2014, 19:20

... Bounds for the Solution of the Algebraic Riccati Equations Komaroff1994 in 16 obtained the following. Let K be the positive semidefinite solution of the ARE 1.4. Then the trace of K has the upper ... Moreover, in terms of 2, 6, we know that an interpretation of trK is that trK/n is the average value of the optimal cost J ∗ as x 0 varies over the s...

Ngày tải lên: 22/06/2014, 03:20

... Impact of RF front-end for QPSK-1/2 configuration. by a random phase shift in the time domain (before FFT). The in uence of the phase noise in the OFDM signal appears in two different ways in the ... by the SW-MAC. The block diagram of the HW MAC depicting the flow of data between SW-MAC and PHY BB is shown in Figure 7. The presence of HW-MAC makes the...

Ngày tải lên: 22/06/2014, 06:20

... and reproduction in any medium, provided the original work is properly cited. 1. INTRODUCTION Depending on the presence of antialiasing filer, there are two ways of formulating the resolution enhancement ... importantly, the problem of inter-band prediction becomes dramatically more difficult in 2D scenario due to the increased complexity of model- ing image sig nals in...

Ngày tải lên: 22/06/2014, 22:20

... (dB) (d) Figure 6: DOA estimation for the scenario of strong out -of- sector interfering source. (a) Directions of the two correlated sources and the interfering source. (b) DOA estimation result using the beamformers ... capability in the sce- nario of strong out -of- sector interfering sources by setting a notch in the direction of the interfering sourc...

Ngày tải lên: 22/06/2014, 23:20

... across the users both in the FMT and the OFDM systems. To obtain the same transmission rate, we use an interpolation factor of N = 40 in FMT, and a CP = 8 samples in OFDM. In the FMT system, the ... by the equivalent impulse response coefficients in (4). The latter is a function of the total delay d of the system. The detailed derivation of the MSINR eq...

Ngày tải lên: 21/06/2014, 11:20