Test results and simulations illustrating the effective duty cycle of frequency modulated pulsed radiolocation and EESS system waveforms in marine radionavigation receivers
This Report was developed based on measurements that were performed with marine radionavigation radars operating at 9 410 MHz and 3 050 MHz. Typical waveforms of chirped radiolocation and earth exploration satellite service (EESS active) systems were simulated using test equipment and injected into the 9 410 MHz radar receiver to investigate how the signal’s duty cycle and pulse width are altered from the transmitted RF pulse, to the one that is presented to the radar’s detector/processor. For the 3 050 MHz radars, mathematic simulations were performed to determine the response of the radars to the EESS and radiolocation systems.