USRP is a flexible low-cost platform for SDR developed by Matt Ettus and his company, Ettus Research. They provide a vast variety of USRP models such as the Bus Series,the Networked Series and the Embedded Series. The Bus Series (USRP1 and USRP B100) provides a low-cost RF processing capability and designed for cost-sensitive applications
requiring exceptional bandwidth processing capability and dynamic range. This model supports streams up to 8 MS/s and users may implement custom functions in the FPGA fabric. The Networked series (USRP N200 and USRP N210) provides high-bandwidth, high-dynamic range processing capability. It uses a Gigabit Ethernet interface and because of that, the devices can transfer up to 50 MS/s of complex baseband samples. The Networked model uses a dual 14-bit, 100 MS/s ADC and dual 16-bit, 400 MS/s DAC. Also, it is provided a MIMO expansion port which can be used to synchronize two devices, making it the recommended solution for MIMO systems. Finally, the Embedded series (USRP E100 and USRP E110) combine the same functionality of the other USRP devices with an OMAP 3 embedded processor. This devices do not need to be connected to an external PC to operate. The Embedded Series is designed for applications that require stand-alone operation. The tests presented in this thesis were measured using a Bus Series, specifically the USRP B100