- main board size – 130x130x20 mm;
- main board power requirements – 12V/2A;
- number of antennas – 16;
- antenna band – L1;
- target interfaces: - I2C; - UART; - SPI; - PPS; - Clock; - GPIO.
The platform consists of powerful hardware, open-source software, optional IP-cores and cloud service. It provides customer with low-cost and fast way to evaluate GNSS Anti-Jamming applications. The software and gateware examples are opened on Amungo Github .
How doest it work?
The RF-signals from sixteen RHCP antennas feed sixteen-channel coherent RF-front-end through low-noise amplifier and RF bandpass filter sections. Sixteen RF BPF outputs then digitized by four four-channel 12-bits analog-to-digital converter (ADC). An FPGA (PL – programmable logic) part of Zynq UltraScale+ System-on-crystal (SoC) receives digital signals and preprocesses it by custom gateware. The preprocessed signal can be used in PL-part or sent to ARM subsystem of SoC for further processing.
The software includes RF-testing software only. It could be used for checking the RF on GNURadio
The limited capture software is also included. The captured samples could be processed by several well-known open-source software GNSS receivers.
There are some IP-cores options for the board: GNSS correlator, space-time filter, matrix inversion and correlation matrix calculation. The info is provided by request.
A Jammed GPS signal output from arbitrary set antenna array could be downloaded for simulations.