Sökning: "Digital Signal Processing"
Visar resultat 31 - 35 av 300 avhandlingar innehållade orden Digital Signal Processing.
31. Digital Compensation Techniques for Power Amplifiers in Radio Transmitters
Sammanfattning : Power amplifiers (PAs) are vital components in radio transmitters because they are responsible to amplify the low power communication signals to power levels suitable for transmission. Important requirements of PAs are high efficiency and linearity. Unfortunately, there is a tradeoff between efficiency and linearity. LÄS MER
32. A digital filterbank hearing aid
Sammanfattning : Digital signal processing hearing aids may provide possibilities for new signal processing strategies to compensate for hearing loss. However, to be practically usable in a headworn hearing aid the digital circuitry needs to fulfil requirements of low power consumption, low supply voltage and small size. LÄS MER
33. Blind equalization using third-order moments
Sammanfattning : The use of third-order moments in blind linear equalization has been studied with emphasis on their performance in on-line methods of low complexity. Blind equalization has widespread use in areas such as digital communications, acoustics, geophysical exploration, image processing and general measurement problems. LÄS MER
34. Cross-Correlator Implementations Enabling Aperture Synthesis for Geostationary-Based Remote Sensing
Sammanfattning : An ever-increasing demand for weather prediction and high climate modelling accuracy drives the need for better atmospheric data collection. These demands include better spatial and temporal coverage of mainly humidity and temperature distributions in the atmosphere. LÄS MER
35. An electronic warfare perspective on time difference of arrival estimation subject to radio receiver imperfections
Sammanfattning : In order to ensure secure communication in digital military radio systems, multiple methods are used to protect the transmission from being intercepted by enemy electronic warfare systems. An intercepted transmission can be used to estimate several parameters of the transmitted signal such as its origin (position or direction) and of course the transmitted message itself. LÄS MER