A new operational low cost GNSS Software receiver for Microsatellites

A low cost GNSS software receiver design with SEE mitigation approach for microsatellites

“…Fig. 2 presents the global architecture of the GNSS receiver [11]. The main parts are the local oscillator subsystem (LO), the radiofrequency subsystem (RF), the digital processing subsystem (DP) and the power subsystem.…”

“…4. shows the GNSS SW architecture defined in this development [11]. The lower layer contains all the drivers to manage the hardware peripherals such as universal asynchronous receiver/transmitter (UART), serial peripheral interface (SPI), Flash memory , FPGA etc.The layer above supports the TM/TC stack allowing the communication with the OBC and a specific application program interface allowing hardware resources access for all GNSS functions (demodulation and navigation).…”

Characterization of a COTS-Based RF Receiver for Cubesat Applications

“…The term "COTS" is also related to the test facilities [10,11] and electrical ground support equipment [1,12]. Finally, the COTS-based design has been even adopted for RF systems [13][14][15][16][17][18][19][20]. They include navigation systems [13,14], transmission data systems for deep-space and remote-sensing applications [15,16], and modules for communication with the earth [2,[17][18][19][20].…”

A flexible system-on-chip FPGA architecture for prototyping experimental GNSS receivers

“…Several FPGA-based space GNSS receivers for POD have been proposed in the literature, and some of them are accessible in the commercial market. Examples of this are referenced in [91,[131][132][133]. In addition, Ref.…”