Results 81 to 90 of about 10,102,394 (160)

A Novel Decoder for Unknown Diversity Channels Employing Space-Time Codes

EURASIP Journal on Advances in Signal Processing, 2002
We suggest new decoding techniques for diversity channels employing space time codes (STC) when the channel coefficients are unknown to both transmitter and receiver.
Erez Elona, Feder Meir
doaj   +1 more source

Testing for the Monotone Likelihood Ratio Assumption [PDF]

Monotonicity of the likelihood ratio for conditioned densities is a common technical assumption in economic models. But we have found no empirical tests for its plausibility.
Hennessy, David A., Roosen, Jutta
core  

Robust target identification using a modified generalized likelihood ratio test

, 2014
In order to correctly identify a remote target, an efficient and robust target signature identification technique is required. Radar target identification based on complex natural resonances (CNRs) has drawn the interest of many researchers following the
Shuley, Nicholas V. Z., Chen, Wei Cher
core   +1 more source

An Adaptive Radar Target Detection Method Based on Alternate Estimation in Power Heterogeneous Clutter

Remote Sensing
Multichannel radars generally need to utilize a certain amount of training samples to estimate the covariance matrix of clutter for target detection.
Daipeng Xiao, Weijian Liu, Hui Chen, Hao Li, Binbin Li   +4 more
doaj   +1 more source

"Empirical Likelihood Methods in Econometrics: Theory and Practice" [PDF]

Recent developments in empirical likelihood (EL) methods are reviewed. First, to put the method inperspective, two interpretations of empirical likelihood are presented, one as a nonparametric maximum likelihood estimation method (NPMLE) and the other as
Yuichi Kitamura
core  

Gridless GLRT Approach for Polarimetric SAR Tomography

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Tomographic synthetic aperture radar is a fundamental imaging technique for urban environments' mapping and monitoring. Yet, its performance is often limited by the discrete height grid used in conventional reconstruction methods, leading to off ...
Nabil Haddad, Karima Hadj-Rabah, Alessandra Budillon, Gilda Schirinzi   +3 more
doaj   +1 more source

Simulating properties of the likelihood ratio test for a unit root in an explosive second order autoregression [PDF]

This paper provides a means of accurately simulating explosive autoregressive processes, and uses this method to analyse the distribution of the likelihood ratio test statistic for an explosive second order autoregressive process.
Bent Nielsen, J. James Reade
core  

Doppler-Spread Space Target Detection Based on Overlapping Group Shrinkage and Order Statistics

Remote Sensing
The Doppler-spread problem is commonly encountered in space target observation scenarios using ground-based radar when prolonged coherent integration techniques are utilized.
Linsheng Bu, Tuo Fu, Defeng Chen, Huawei Cao, Shuo Zhang, Jialiang Han   +5 more
doaj   +1 more source

"Empirical Likelihood-Based Inference in Conditional Moment Restriction Models" [PDF]

This paper proposes an asymptotically efficient method for estimating models with conditional moment restrictions. Our estimator generalizes the maximum empirical likelihood estimator (MELE) of Qin and Lawless (1994).
Hyungtaik Ahn, Yuichi Kitamura, Gautam Tripathi   +2 more
core  

Two-step ranging based on energy detection for IR-UWB sensor networks

Tongxin xuebao, 2009
In order to design a low computational and cost ranging method for the IR-UWB （impulse radio ultra wideband） wireless sensor network, a two-step DP （direct path） component TOA （time of arrival） estimation algorithm based on energy detection was proposed.
ZHANG Ting-ting1, ZHANG Qin-yu2, ZHANG Nai-tong1   +2 more
doaj   +2 more sources