Research on Incoherent Frequency Discrimination Algorithm of FM Telemetry Signal Based on GPU

To improve the flexibility of FM telemetry system and the universality of the hardware platform, an incoherent demodulation method of FM telemetry signal based on GPU is designed. Based on CUDA parallel operation architecture, the efficient orthogonal down-conversion module, parallel filter module, and incoherent frequency discrimination module are developed. The experimental results show that the demodulation method based on GPU is correct, efficient and reliable, and can realize the real-time demodulation of FM telemetry signal.