Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 18 of 18 for “"Estimation and detection"”.
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Estimation and detection with chaotic systems
… of Technology, Dept. of Electrical Engineering and Computer Science, 1994.
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Analogic for code estimation and detection
… called Noise-Locked Loop(NLL) which is a pseudo-random code estimation system. The previous work shows NLL can perform direct-sequence spread-spectrum acquisition and tracking functionality and promises orders-of-magnitude win over digital implementations [29]. Most of the research [30] [2] [3] …
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Adaptive Estimation and Detection Techniques with Applications
… as one of the main directions in control theory and attracted increasing attention in recent years due to their huge diversity of engineering applications. Multiplemodel (MM) estimation is the state-of-the-art approach to many hybrid estimation problems. Existing MM methods with fixed structure …
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Novel Estimation and Detection Techniques for 5G Networks
The thesis presents several detection and estimation techniques that can be incorporated into the fifth-generation (5G) networks. First, the thesis presents a novel system for orthogonal frequency division multiplexing (OFDM) to estimate the channel blindly. The system is based on modulating …
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Applications of quantile regression to estimation and detection of some tail characteristics
… Covariate-adjusted Expected Shortfall (COVES), and the Generalized Covariate-adjusted Expected Shortfall (q.COVES) tests under the framework of quantile regression. Those tests focus specifically on one tail of the outcome distributions. The ES test applies to two-sample comparisons. The COVES …
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Optimal and Suboptimal Signal Detection-On the Relationship Between Estimation and Detection Theory
In this thesis, we consider a general binary and M-ary hypothesis testing problems with unknown parameters. In a hypothesis testing problem, we assume that the probability density function (pdf) of observation is given while some unknown parameters exit in the structure of the pdf and the set of …
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Advancements in Radar Sensing and Communications through Reconfigurable Intelligent Surfaces
… to establish robust links for both communication and sensing purposes. This dissertation investigates the optimal design of RIS for target estimation and detection in radar systems. Additionally, it examines the joint enhancement of sum-rate performance and target detection capabilities in …
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Soft N-modular redundancy: exploiting statistics for robust computation
… due to the presence of process, temperature and voltage variations. In this thesis, we present soft N-modular redundancy (soft NMR) that exploits statistics of errors due to these nanoscale artifacts in order to design robust and energy-efficient systems. In contrast to conventional NMR, soft …
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Blind Channel Estimation and Multiuser Detection for Multi-Rate CDMA Communications
… wireless links. Currently, the study on channel estimation and multiuser detection for multi-rate DS/CDMA, which makes full use of the nature of multi-rate signals, is still at its early stage. The thesis deals with the application of subspace-based techniques to blind channel estimation and …
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Algorithms and architectures for channel estimation in wireless CDMA communication systems
… a rapid growth in markets, technology, and range of services. An attractive approach for economical, spectrally efficient, and high quality digital cellular and personal communication services is the use of code division multiple access (CDMA) technology. The estimation of channel delays …
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Nano/Bio-Receiver Architectures and Detection Methods for Molecular Communications
… at extending the connectivity into nanoscale and biological environments with collaborative networks of artificial nanomachines and biological entities integrated into the Internet. To enable the IoNT and its groundbreaking applications, such as real-time intrabody health monitoring, it is …
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Low-Complexity Algorithms for Channel Estimation in Optimised Pilot-Assisted Wireless OFDM Systems
… considered for the next generation fixed and mobile broadband wireless communication systems. OFDM has an advantage of lessening the severe effects of the frequency-selective (multipath) fading due to the band splitting into relatively flat fading subchannels, and allows for low-complexity …
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Chemical identification under a poisson model for Raman spectroscopy
… fields, partly because of its non-contact nature and the speed at which measurements can be taken. The development of powerful, inexpensive lasers and sensitive charge-coupled device (CCD) detectors has led to widespread use of commercial and scientific Raman systems. However, relatively little …
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Area-constrained frequency estimation for focal plane arrays
… on the problem of detecting the frequency and amplitude of signals generated by focal plane array (FPA) on a per-pixel basis, i.e., pixel-matched processing. Addressing this problem requires the design of signal processing algorithms and circuit architectures subject to stringent area …
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Learning-based Decision Making in Wireless Communications
<p>Fueled by emerging applications and exponential increase in data traffic, wireless networks have recently grown significantly and become more complex. In such large-scale complex wireless networks, it is challenging and, oftentimes, infeasible for conventional optimization methods to quickly …
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Heterogeneous Sensor Signal Processing for Inference with Nonlinear Dependence
… heterogeneous sources has been an interesting and important topic in recent years. Several issues related to inference using heterogeneous data with complex and nonlinear dependence are investigated in this dissertation. We apply copula theory to characterize the dependence among heterogeneous …
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Digital communication receiver algorithms and architectures for reduced complexity and high throughput
… this dissertation, efficient receiver algorithms and architectures for digital communications are studied. As the demand for higher data communication rate increases, the dimension of communication systems is rapidly growing, thereby requiring computationally efficient detection and decoding …
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Communications over fading channels with partial channel information : performance and design criteria
… results are provided for independent and identically distributed (i.i.d.) Gaussian signals. A simple, low-duty-cycle signaling scheme is proposed to improve the information rates for low signal-to-noise ratio (SNR), and the optimal duty cycle is expressed as a function of the fading …