Radio Monitoring And Direction-finding System Of Electromagnetic Interference And The Practice And Research

The investigation of Radio interference is an important task of radio management, how to investigate radio interference quickly and accurately is an important subject in front of radio management departments. Familiar with all kinds of radio monitoring equipment performance is the premise of fast lookup interference and improve the work efficiency and also is the necessary quality of the radio management workers. In recent years, the investment for radio management technology is increasing, many typical representative enterprise of China arise, such as RongXing at Shenzhen and YuanTong, HuaRi at ChengDu. The renewal of radio monitoring equipment is very quickly. Different performance of radio monitoring and direction finding system analysis can help us to receive various signals.Using a spectrum analyzer to analysis domain characteristics can measure the signal easily, such as signal frequency, noise, interference and power etc. It is providing a great convenient for interference investigation. This requires every radio management workers to deeply understanding the working principle, function, technical performance and indicators of monitoring equipment. And also requires each person don’t just stay on the operating level, but totally understanding the direction of the feeder system, antenna gain, antenna, signal strength, the relationship between distance and frequency and the relationship between the measured signal level, etc., be familiar with the forefront monitoring equipment operating skills and software application as soon as possible, comprehend the change law of the external condition, the change of the electromagnetic environment with the change of the frequency of distance, weather, terrain and so on. So that we could find, position and dispose all kinds of electromagnetic interference quickly, accurately. Eliminating the interference sources for radio users as quickly as possible, reducing the loss of users as low as possible. Practice has proved that for radio management workers only to master the interference recognition and positioning method application that based on the monitoring and direction finding system is the best way to improve the efficiency of the investigate radio interference and protect electromagnetic environment. In this thesis, we will contact radio theory with work experience, talking about the common radio interference of the mobile communication and the elusion method in the most close to the perspective of the masses, deeply analysis not only the concept, types, characters and harms of radio interference, but also the elusion method. The most important point is the technological means for radio monitoring equipment, analysis the types of radio interference. Research and draws the "diagram of radio interference types and avoiding method"; Summed up7different ways to distinguish the radio interference,5different ways to positioning radio interferences and " nine steps" work process to avoid interference. Analysis the application of the lateral radio monitoring system at the radio interference founding and positioning part. For the national radio management lessons, help other radio management workers improve their ability of deal with radio interference. Fill the blank of the radio interference on positioning, and confirm.