作者分析了海杂波的多普勒谱特性，给 出了两种基于多普勒谱特征的检测方法，应用联合瑞利概率密度函数描述海杂波 多普勒谱的统计特性和熵值方式表示多普勒谱的波形特性。 -As the present study on sea clutter are shown, based on the analysis of sea clutter Doppler spectrum characteristics, two target detection algorithms are propo

Application of spread spectrum for satellite land mobile systems is difficult in satellite link because of synchronization and providing code or considerable Doppler shift. This is particularly high for LEO satellites. So that, a Doppler shift carr

多普勒功率谱在多普勒频域估计方法起到关键性作用。结合实际铁路场景,分析了各个场景信道特征和场景对应的多普勒功率谱。 -Doppler power spectrum in doppler frequency domain estimation methods play a key role.In this paper, the actual railway scenes, each channel characteristics and scene corresponding doppler