This amplitude modulation is tested in ni usrp rio 2920 as transmitter. Browse block diagram templates and examples you can make with smartdraw. Usrp software radio ni community national instruments. Pdf usrp based digital audio broadcasting using ofdm in. The signal path is duplicated for each of the two channels.
Usrp2954 block diagram niusrp help national instruments. An introduction to software defined radio with labview and. Use the ni usrp as a spectrum analyzer to find local fm radio stations and then modify the. When you use labview fpga, you control the processing on the fpga. I didnt understand modulation toolkits vi so i designed quantization and encoder with mathscript. The acquisition vi marked as step 4 is surrounded by two for loops.
Note the rf switch allows transmit and receive operations to occur on the same shared antenna. This device simplifies control and management of a network of radios by introducing the unique capability to remotely perform tasks such as updating software, rebooting, factory resetting, selftesting, host pcarm debugging and. The usrp 2974 is built on a heterogeneous processing architecture with an onboard intel core i7 processor running the ni linux realtime os. Usrp n310 ettus research, a national instruments brand. Use the ni usrp as a spectrum analyzer to find local fm radio stations and then modify the block diagram to decode the fm radio station and listen to the music. Ni usrp 29xx this document explains how to install, configure, and set up the national instruments universal software radio peripheral usrp 2920, 2921, 2922, 2930, or 2932 ni 29xx device. This unit can be implemented in software matlab, nilabview, c or in hardware dsp. The carrier frequency used is 5551650 khz for amplitude modulation and. Download help windows only the following figure shows a simplified block diagram of the usrp 2955. With each iteration of the outer loop, the vi retunes the ni usrp radio transceiver to a new subband frequency for a new set of acquisitions at that frequency. The usrp n310 is a networked software defined radio that provides reliability and faulttolerance for deployment in largescale and distributed wireless systems. I learned usrp s transmitter and receiver template but i have problems with pcm modulation and demodulation parts. Note the area within the dotted line indicates the processing on the fpga when you use ni usrp with the default fpga image. Introduction to the usrp 2945 and usrp 2955 software defined radios.
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