有色噪声背景下直升机航迹滤波与预估的研究

结合武装直升机在巡航或搜索地面目标的特点，给出直升机航迹模型为协方差平稳随机模型。在线估计有色噪声参数，对测量噪声去相关。对直升机航迹进行卡尔曼滤波与预估。最后对有色噪声条件下的航迹进行了仿真研究，并与白噪声条件下的仿真结果进行比较，结果表明，这种方法具有很强的去相关能力，可以提高跟踪精度。

Study on the Filtration and Forecast of Helicopter Tracks under Color Noise Background

According to the charactoristics presented by armed helicopters during cruising or searching for ground targets, this paper establishes the covariance stationary random model of helicopter tracks. It decorrelates the measure noise by doing a online estimation of color noise parameters and filters in kalman method and forecasts helicopter tracks. Finally, it makes the simalating study on helicopter tracks under color noise condition and a comparison between the simulating results under color noise condition and one under white noise condition. The resuft shows the method choosing color noise condition this a complet decorrelation capability and can raise the tracking accuracy.