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 7 of 7 for “"High power amplifier"”.
-
Design and implementation of adaptive baseband predistorter for OFDM nonlinear transmitter. Simulation and measurement of OFDM transmitter in presence of RF high power amplifier nonlinear distortion and the development of adaptive digital predistorters based on Hammerstein approach.
… compensate the dynamic nonlinear distortion of a High Power Amplifier (PA). The effectiveness of the proposed baseband predistorter (PD) on the performance of a WLAN OFDM transmitter utilizing a nonlinear PA with memory effect is observed and discussed. For this purpose, a 10W Class-A/B power …
-
Quantitative Interference and Capacity Analysis of Broadband Multi-Hop Relaying Networks
… as Doppler Shift due to user mobility per hop, high-power amplifier distortions when amplifying the transmitted/relayed OFDM symbol per hop, as well as the cumulative effects of these impairments over multi-hop relaying channels. It is shown that the resulting inter-carrier interference (ICI) …
-
Investigation of Alfvén eigenmodes in Alcator C-Mod using active MHD spectroscopy
… inside the C-Mod vacuum vessel are driven by a high power amplifier in the TAE range of frequencies and excite modes inside the plasma. Magnetic fluctuation diagnostics provide the plasma response to this excitation. The damping rate is then calculated from the complex transfer function between …
-
Energy-Efficient Multicarrier and Multicarrier-CDMA Systems
… are presented for computation of Peak-to-Average Power Ratio (PAPR). Using extensive simulations, Complementary Cumulative Distribution Functions (CCDFs) of PAPR of OFDM signals for Binary Phase Shift Keying (BPSK), Quadrature Phase Shift Keying (QPSK), and -QPSK are obtained as a function of …
-
Wide band TX Leakage Cancellation for FDD Transceivers
… for a base station due to its bulky size, high cost and design challenges. Relaxing the isolation performance requirement of the duplexer allows TX signal to appear in the RX path. Such a signal is known as TX leakage and consists of in-band and out-of-band portions. Due to the fact that …
-
Design methodologies of microwawe integrated circuits for satellite telecommunications
… optimized for a specific performance such as power, low-noise, linearity, broadband etc. For these reasons circuit design is always a “compromise”, an investigation for the best solution to reach a trade off between the desired performances. This approach becomes crucial in the design of …