Development and Optimalization of Software Radio Based Primary Ground Station Receiver of Smog-1 Satellite

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Supervisor:
Dudás Levente
Department of Broadband Infocommunications and Electromagnetic Theory

My task is to develope and optimize a software radio based receiver for primary Ground Station of Smog-1 Satellite, which is an 5 x 5 x 5 cm sized PocketQube, made for educational purpose in association with the Smog-1 developing team (Radar Research Group). The necessary hardware components (USRP-Universal Software Radio Pheripherial and PXI), which are used to implement the SDR (Software Defined Radio) based receiver on them are supported by National Instruments Hungary Kft (in the following NI; Budapest, Neumann János utca 1/E, 1117). They also support me further help connecting to the hardware. The achievement of my task is quite complex, so the first step is that, I need to create a simulation program, in order to make measurable some parameters of the receiver for example the BER (Bit Error Rate) and PER (Pocket Error Rate), transmitting pseudorandom bit sequence, and adding White Gaussian Noise to the communication channel. The next step is to perform AGC (automatic Gain Control) and AFC (Automatic Frequency Control) to control frequency and gain difference which are caused by the anomalies come from the orbit of the satellite. Finally I have to take measurements on the realized software defined radio based receiver to verify its correct operation.

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