| In this thesis, synchronization techniques and baseband transceiver design are studied for the recently emerging code-shifted-reference (CSR) impulse radio (IR) ultra-wide band (UWB) systems.;Baseband transceiver design has been implemented for the differential CSR IR UWB system. For the transmitter side, in order to implement the pulse amplitude modulation, both the variable gain amplifier (VGA) based and the operational amplifiers (Op-Amp) based approaches are studied. For the receiver side, a non-coherent energy detection structure is implemented with the Lattice ECP2 field-programmable gate array (FPGA) evaluation board.;Synchronization of the CSR IR UWB systems consists of frame and symbol timing recovery. A phase-lock-loop (PLL) is employed to recover the pulse (frame) repeat clock, and three code synchronization techniques (direct searching, partial and complete minimum Euclidean distance searching) are developed to group the frames into the symbol level. Monte Carlo computer simulations demonstrate that the complete minimum Euclidean distance searching provides the best performance among all three search techniques. |
