Search for dissertations about: "array signal processing"
Showing result 6 - 10 of 142 swedish dissertations containing the words array signal processing.
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6. Antenna array mapping for DOA estimation in radio signal reconnaissance
Abstract : To counter radio signal reconnaissance, an efficient way of covert communication is to use subsecond duration burst transmissions in the congested HF band. Against this background, the present thesis treats fast direction finding (DF) using antenna arrays with known response only in a few calibration directions. READ MORE
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7. Time-domain Reconstruction Methods for Ultrasonic Array Imaging : A Statistical Approach
Abstract : This thesis is concerned with reconstruction techniques for ultrasonic array imaging based on a statistical approach. The reconstruction problem is posed as the estimation of an image consisting of scattering strengths. READ MORE
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8. Subspace-Based Parameter Estimation Problems in Signal Processing
Abstract : The effects of multipath-induced angular spread and non-zero band-width on narrow-band direction-of-arrival (DOA) estimation are investigated. In both cases expressions for the resulting estimation error are developed for the MUSIC, ESPRIT and WSF DOA estimators. READ MORE
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9. Teleconferencing, system identification and array processing
Abstract : The area of teleconferencing has long yielded great interest in the signal processing community. The main reasons for this are probably the huge interest from the industry and the challenging problems of the topic. The problems of teleconferencing are relevant for several different disciplines in signal processing. READ MORE
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10. Signal Processing for Radar with Array Antennas and for Radar with Micro-Doppler Measurements
Abstract : Radar (RAdio Detection And Ranging) uses radio waves to detect the presence of a target and measure its position and other properties. This sensor has found many civilian and military applications due to advantages such as possible large surveillance areas and operation day and night and in all weather. READ MORE