Characteristic Analysis And Simulation Of Radar Clutter Signal

Because the radar performance is affected by the radar return signal form the land and sea surface, radar engineers have focused on the research on clutter's modeling and simulation. Radar signal simulator features economy, flexibility, repeatability. It's indispensable to radar system designing, radar system development and radar system test. Whether the clutter model is accuracy, all-purpose and flexible or not, which is an important criterion accessing the radar signal simulator's performance. Research on modeling and simulation of radar clutter is helpful for the design of radar signal simulator, also helpful for the design of radar system, optimizing of algorithm for signal processing. From the point of view of solution to engineering application , methods for modeling and simulation of clutter and its realization are proposed for the design of radar signal simulator.First, this paper analyses and studies the characteristic of clutter signal. First of all, it introduces the basic concept of clutter. Then it put the main emphasis on summarize the clutter properties of amplitude and spectrum, which clutter modeling follows. Based on explaining the concept properties and classification of mathematical models, it discusses the modeling of ground clutter, sea clutter and meteorological clutter in detail.With reference to clutter simulation based on ZMNL, this paper firstly introduces normal methods of generating relevant stochastic series and amplitude modulation by ZMNL. According to logarithmic normal distribution Weber distribution and K distribution, clutter modeling andsimulation are realized. The correspondences between relevant coefficients S_ijj and ρ_ij is discussed.Based on them, it brings up the improved empirical iterated method like neural networks, which can be applied in relevant non-Gaussian clutter in radar simulation system. It introduces tell of nonlinearity system and radar clutter simulation by the method.In the last, the paper summarizes works of the subject, and give a vista of future study and work-...