Fig. 1. Gaussian pulse signal

Fig. 2. UWB signal energy spectral density under different repetition frequencies

Fig. 3. TEM horn antenna

Fig. 4. Navigation receiver RF front-end structure

Fig. 5. Diagram of amplifier working area

Fig. 6. Output waveform of the LNA after injecting UWB pulses

Fig. 7. Experimental environment

Fig. 8. UWB electromagnetic pulse source (after 60 dB attenuation)

Fig. 9. Number of satellites captured by the receiver without interference (green)

Fig. 10. Number of satellites captured by receiver under different electric field intensity

Fig. 11. Number of satellites captured by UWB EMP receivers at different repetition frequencies