Take the electromagnetic test of WT-8D satellite cloud image receiving system at a meteorological satellite ground station as an example, the test philosophy is analyzed, the test arrangement is made, and the maximum permissible value of level interference under the test requirements is calculated. By comparing the measuring data and the maximum permissible value of level interference, the relations between the antenna frequency and the value of level, the location of interference source, the intensity of interference source, and the generation laws of interference are all grasped. Aiming at the interference source, two methods are proposed respectively in this paper to inhibit the interference, one in the frequency domain and the other in the spatial domain. Then the method of information sharing of meteorological satellite cloud image is analyzed and discussed. As a conclusion, the receiving and transmittal quality of the meteorological satellite cloud image are improved, to prepare for the anti-electromagnetic interference in high tech local area in the future.
Amateur satellite ground station: Troubleshooting and lesson learned