Global ETD Search
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Showing 1 to 4 of 4 for “"IQ Imbalance"”.
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Time-Varying Frequency Selective IQ Imbalance Estimation and Compensation
… high data rate and multi-user systems. IQ imbalance is one of the problems of DDC transceivers that limits their image rejection capabilities. Compensation techniques for frequency independent IQI arising due to gain and phase mismatches of the mixers in the I/Q paths of the transceiver …
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Systemanalyse und Entwicklung Six-Port basierter Funkempfängerarchitekturen unter Berücksichtigung analoger Störeffekte
… DC-offset. With this insight compensation techniques were developed to overcome the negative influences of the dynamic DC-offset. Furthermore, this work presents novel Six-Port-based receiver architectures which, on the one hand, keep the advantages of additive mixing systems like: low power …
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High Performance RF Circuit Design: High Temperature, Ultra-Low Phase Noise, and Low Complexity
… to overcome the serious shortcomings in the IQ transmitters, such as IQ imbalance and carrier leakage. However, there is still several challenges in their design. We introduce a transmitter architecture that operates based on charge to phase translation mechanism in the oscillator. This leads …
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On the Use of Convolutional Neural Networks for Specific Emitter Identification
… to an emitter, and is made possible by the unique and unintentional characteristics an emitter imparts onto each transmission, known as its radio frequency (RF) fingerprint. SEI systems are of vital importance to the military for applications such as early warning systems, emitter tracking, …