France Wave Blocker Technology

Location spoofing systems are designed to disrupt and mislead positioning systems. This technology is mainly used in security applications and sometimes research.

Brief Introduction to Hardware

France Wave Blocker Technology

The hardware components of the mentioned product are shown in Figure 1. This product consists of two separate antennas for sending and receiving data and a processing set. The processing box contains a processing board, a UBLOX positioning receiver, and an SSPA (power amplifier) board with an output power of 1 to 2 watts. The processing board also has a ZYNQ FPGA processor and an AD9361 SDR chip.
According to the diagram, the FPGA first updates its navigation data using the UBLOX receiver and then creates a digital jammer signal to match it. Then, the digital jammer signal is sent to the input of the AD9361 chip, and the DAC output of this chip is sent to the input of the SSPA board. Finally, we will have a signal with adjustable power and a maximum power of 1 to 2 watts at the output of the system, which will be radiated by the antenna in the desired range.

Wawe Blocker User Interface

France Wave Blocker Technology

The user interface for working with this product is a web-based software. The software is automatically running on the onboard processor. To control the system settings, it is enough to connect the system to a PC via a network connection. Using this software, the user can set the deception situation scenario, the system output power, the duration of deception data transmission until the next navigation data update, etc. In addition, he can view the number of satellites seen in the sky and the signal reception and transmission status as an output log. In Figure 3, you can see the output log display and the number of satellites for all 4 GNSS systems in the user interface.

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