| 1. | The results show the modified algorithm is much better than the classical range - doppler algorithm at the case of large squint angle 结果表明,在大斜视角情况下,改进算法的性能远大于传统的距离 |多普勒成像算法。 |
| 2. | For spaceborne sar system with large squint angle , the main error source of classical range - doppler algorithm is analyzed which causes the loss in image quality 分析了当天线斜视角增大时,导致传统距离多普勒成像算法性能下降的主要误差来源。 |
| 3. | These conclusions are important for choosing suitable radar system parameters such as center frequency , resolution and imaging squint angle in engineering design 这些结论对工程设计牛选择合适的工作参数,如载频、分辨率、成像斜角等具有较为重要的参考价值。 |
| 4. | The special relationship among signal bandwidth , center frequency and imaging squint angle in the range - doppler imaging algorithm and other methods is also presented in the chapter 3 本章通过分析提出了距离多普勒等成像方法中信号带宽、工作频率和成像斜角之间存在的特定关系。 |
| 5. | The relationship shows that the maximum bandwidth is limited for these algorithms and becomes narrow when the center frequency is lower and the imaging squint angle is larger 这种关系表明雷达可用的信号带宽是有一定限制的,随着工作频率的下降和成像斜角的增大,可用的信号带宽会变得越来越小。 |
| 6. | A modified range - doppler algorithm for spaceborne sar with large squint angle is presented and the quality of images of simulated point target echoes gained by two algorithms are list in the paper 提出了一种适合大斜视角星载sar系统的改进距离多普勒算法,并给出了处理仿真点目标数据得到图像质量的比较。 |