Model Of The Radar Seeker System And Simulation In Static State

During the research and design of modem weapon system, we can greatly economize the expense of time, energy and money on the project by applying the simulation technology. If we use it into the R&D procedure of the radar seeker, we can make some different designs, and with which we take experiments, analyze their characteristic, adjust their parameters, and in turns use all these to direct the production. So it is quick, convenient and flexible. With the intention above mentioned, the work finished in this dissertation is as follows:1. There are many kinds of antennas that usually used in radar system, such as paraboloid antenna, karsigelun antenna, aperture antenna and so on. After described the principle of different type of antennas that maybe used in radar, we drew their lobe models, analyzed their gains and s-curves based on their commonlobe function.2. As a transmitter, the radar seeker probably produces coherent orincoherent pulse modulated signal as common, frequency-agile signal, linear frequency modulation signal, pulse-coding compression signal and so on. Thus we first confirmed every signal's mathematical model that may be chose, and then studied what it is different from the others by simulation in Visual C++.3. By analyzing the functions of every part which mainly consist of the radar receiver, we got their functional models, including mixing, magnifying the middle frequency signal, cymoscope, filters, auto gain controlling and range tracking, angle tracking. After simulation with them, we had the results ideally.4. Without consider the interference formed by waves in the sea, we created the signals used to test the function of the radar system, as well as the noise formed by radar receiver. And then we simulated the whole radar system in static state, including of displaying the indicators of the first falling, seeking , tracking the target, the second falling, dashing, and drawing the characteristic curvesformed at the same time.With C/C++ program language, this paper finished all those simulation based on VC++6.0 environment, after having designed their interfaces.