波形綜合機(jī)載雷達(dá)地雜波模擬方法性能分析

根據(jù)機(jī)載雷達(dá)地雜波的形成原理及其特點(diǎn)，提出了一種基于波形綜合的機(jī)載雷達(dá)地雜波建模方法。該方法產(chǎn)生的地雜波可以控制雜波的時域幅度起伏和功率譜，在時域和頻域同時具有與實(shí)際雷達(dá)地雜波相近的分布特性，從而可為機(jī)載雷達(dá)系統(tǒng)的測試提供可靠的數(shù)據(jù)來源。

The performance of airborne radar strongly depends on the statistical distribution, the power spectral character and the fluctuation of the ground clutter. This paper presents a clutter modeling method using waveform synthesis theory in order to provide ground clutter simulation for analyzing airborne radar system. Compared with conventional modeling method that uses the distribution and power spectrum of clutter, this method can generate ground clutter data with a given distribution, power spectrum and fluctuation simultaneously. Comparison of simulation results and real radar clutter indicates that this method can model ground clutter of airborne radar more accurate than the conventional method.