Sökning: "network analyzer based"

Visar resultat 1 - 5 av 12 avhandlingar innehållade orden network analyzer based.

1. 1. mm-Wave Data Transmission and Measurement Techniques: A Holistic Approach

   Författare :Dhecha Nopchinda; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; estimation theory; data transmission experiment; spectral efficiency; microwave network analysis; communication system; millimeter wave mm-wave system; mutual coupling effects; spectrally efficient frequency division multiplexing SEFDM ; vector network analyzer; wideband measurement.; coherent optical system; impairment compensation algorithm; identification theory; multiplier based transmitter; digital signal processing; Active load pull; linear measurement technique;

   Sammanfattning : The ever-increasing demand on data services places unprecedented technical requirements on networks capacity. With wireless systems having significant roles in broadband delivery, innovative approaches to their development are imperative. LÄS MER

3. 2. Design and development of a microwave multifrequency polarimetric scatterometer for biosphere remote sensing

   Författare :Anders Stjernman; Umeå universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Polarimetry; scatterometer; microwave remote sensing; calibration; network analyzer based; S-parameters; scattering matrix;

   Sammanfattning : Microwave radar and radiometer techniques are used to gather crucial information about the earth and its atmosphere. The ERS-1, JERS-1, RadarSAT and NASA’s Mission to Planet Earth projects are designed to study the changing global environment. In all these endeavors, the key instrument is the radar or scatterometer. LÄS MER

4. 3. Communications-Oriented Modeling and Development of Vehicular Distributed Embedded Systems

   Författare :Saad Mubeen; Mikael Sjödin; Jukka Mäki-Turja; Petru Eles; Mälardalens högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Embedded systems; real-time systems; distributed embedded systems; component-based development; End-to-end timing analysis; response-time analysis; Controller Area Network; component model; timing model; Computer Science; datavetenskap;

   Sammanfattning : The model- and component-based development approach has emerged as an attractive option for the development of vehicular distributed real-time embedded systems. Within this context we target challenges related to modeling of legacy network communication, extraction of end-to-end timing models and support for end-to-end timing analysis. LÄS MER

5. 4. Ultra-Wideband Time Domain Measurement Systems for Microwave Tomography

   Författare :Xuezhi Zeng; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Time DomainMeasurement; Ultra-Wideband; EquivalentTime Sampling; Real Time Sampling; Microwave Tomography; Measurement Error; Frequency Domain Measurement;

   Sammanfattning : As a potential imaging modality for biomedical applications, microwave tomography has attracted a lot of interests in recent years. With microwave tomography, microwave signals are transmitted into the biological tissues and the scattered fields are recorded. LÄS MER

7. 5. Experimental Evaluation of a Microwave Imaging System for Muscle Rupture Detection

   Författare :Laura Guerrero Orozco; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

   Sammanfattning : Injuries to the hamstring muscles are one of the most common injuries in sports such as football, sprinting, and running. Imaging plays a key role in diagnosing and managing athletes with muscle injuries, and particularly magnetic resonance imaging is usually required to diagnose muscle ruptures. LÄS MER