| 基于多尺度自适应卡尔曼滤波的分形信号去噪 |
| |
| 引用本文： | 李强,吴文进. 基于多尺度自适应卡尔曼滤波的分形信号去噪[J]. 弹箭与制导学报, 2009, 29(5) |
| |
| 作者姓名： | 李强 吴文进 |
| |
| 作者单位： | 安庆师范学院,安徽安庆,246011 |
| |
| 基金项目： | 安徽省教育厅自然科学基金 |
| |
| 摘 要： | 针对1/f分形信号在传输过程会受到噪声污染问题,提出了一种基于小波变换与自适应卡尔曼滤波相结合的多尺度自,应去卷积滤波方法.根据小波变换对l/f分形信号进行白化的特点,在小波域对小波系数建模,先利用最小二乘法求解模型系数,然后基于自适应卡尔曼去卷积滤波对1If分形信号进行估计.仿真实验表明,在不同的输入信噪比与分形指数情况下,所提出的去噪方法均能取得较好的效果.
|
| 关 键 词： | 小波变换 分形信号 卡尔曼滤波器 自适应滤波 |
Fractal Signal Denoising Based on Multiscale Adaptive Kalman Filtering |
| |
| LI Qiang,WU Wenjin. Fractal Signal Denoising Based on Multiscale Adaptive Kalman Filtering[J]. Journal of Projectiles Rockets Missiles and Guidance, 2009, 29(5) |
| |
| Authors: | LI Qiang WU Wenjin |
| |
| Affiliation: | LI Qiang,WU Wenjin(Anqing Teachers College,Anhui Anqing 246011,China) |
| |
| Abstract: | A multi-scale adaptive Kalman deconvolution filtering algorithm based on wavelet transform was proposed for fractal signal restoration.After the wavelet coefficient model of 1/f fractal signal whitened with wavelet was given,the coefficients in the model were computed by the least square method,then the adaptive Kalman deconvolution filter was used to estimate 1/f fractal signal.The simulation results show that the method has excellent ability to restore fractal signal with different input SNR and fractal e... |
| |
| Keywords: | wavelet transform fractal signal Kalman filter adaptive filtering |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
