Search for dissertations about: "sparse arrays"

Showing result 1 - 5 of 19 swedish dissertations containing the words sparse arrays.

  2. 1. Angle and frequency estimation using sensor arrays

    Author : Fredrik Athley; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; performance bounds; 2-D frequency estimation; Bayesian estimation; direction-of-arrival DOA estimation; radar; interferometry; ambiguity; Doppler frequency estimation; sparse arrays; sensor array processing;

    Abstract : .... READ MORE

  4. 2. Sparse Array Architectures for Wireless Communication and Radar Applications

    Author : Navid Amani; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; base station antenna BSA ; sparse array; grating lobe; multi-user MU MIMO; multipath channel; mutual coupling; direction-of-arrival DOA estimation; MIMO radar; 5G; network theory;

    Abstract : This thesis focuses on sparse array architectures for the next generation of wireless communication, known as fifth-generation (5G), and automotive radar direction-of-arrival (DOA) estimation. For both applications, array spatial resolution plays a critical role to better distinguish multiple users/sources. READ MORE

  5. 3. Sparse Array Synthesis of Complex Antenna Elements

    Author : Carlo Bencivenni; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; mutual coupling; array signal processing; maximally sparse array; aperiodic array; symmetric layout.; phase scanning; compressive sensing;

    Abstract : Arrays of antennas can significantly improve the performances and extend the capabilities of single-element antennas. However, antenna arrays are expensive solutions and therefore it is critical to keep the costs to a minimum. READ MORE

  6. 4. Passive Acoustic Monitoring of Moving Targets by Sparse Underwater Sensor Network

    Author : Viktoria Zetterberg; Blekinge Tekniska Högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Abstract : Surveillance of sound activities in the sea is of great importance for many applications. A common way to monitor the sea is to register sound with the help of a group of closely placed sensors that form a one-dimensional or two-dimensional array. READ MORE

  7. 5. Synthesis of well arrayed structures with assistance of statistical experimental design

    Author : Yajuan Cheng; Pär Jösson; Zhe Zhao; Gunnar Westin; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; optimization; experimental design; statistical analysis; monolayer arrays of silica spheres; vertically aligned ZnO rod arrays; Materials Science and Engineering; Teknisk materialvetenskap;

    Abstract : During the synthesis of well arrayed nano/micro structures through wet chemical methods, plenty of parameters are usually involved. Consequently, it is extremely time- and cost-consuming to find out the optimized synthesis conditions by using the conventional "changing one separate factor at a time" (COST) strategy. READ MORE