Amplitude Modulation and Demodulation Using Fpga(Vivado), Gnuradio, SDR and Simulated GPS Signal and Got it Locked to GPS User Receiver by Spoofing the Signals Using SDR

The paper explores the integration of these technologies to create a comprehensive solution for amplitude modulation and demodulation in communication systems. FPGA, represented by the Xilinx Vivado design suite, is used to generate the carrier signal, perform the modulation and demodulation operations, and handle the digital signal processing.GNU Radio, an open-source software development toolkit, is utilized to simulate and test the modulation and demodulation algorithms before implementation on the FPGA.
The SDR hardware, such as USRP or HackRF One, is employed to generate and process the analog signals, while the FPGA and GNU Radio handle the digital signal processing tasks.
The workflow involves designing the amplitude modulation and demodulation algorithms in Vivado, simulating and testing them using GNU Radio and the SDR hardware, and then implementing the FPGA-based system integrated with the SDR platform. This approach allows for a flexible and powerful implementation of amplitude modulation and demodulation, leveraging the strengths of FPGA hardware, GNU Radio software, and SDR platforms to create a comprehensive communication system. This work explores the simulation and spoofing of GPS signals using SDR technology. The objective is to generate simulated GPS signals and successfully lock them onto a GPS user receiver, effectively spoofing the receiver.