| 1. | Exploitation of high resolution radar techniques has always been the direction of radar research and development on both military and civil applications 提高雷达的距离分辨力一直是雷达技术研究与发展的方向。 |
| 2. | Moreover , the pulse compression radar has been widely used in practice because of its far detection range and good range resolution 此外,为了解决雷达作用距离和距离分辨力之间的矛盾,脉冲压缩机技术在现代雷达系统中被广泛采用。 |
| 3. | Chirp - subpulse stepped frequency signal is one of the high distance resolution signals with merits of stepped - frequency signal and chirp signal Chirp子脉冲频率步进信号兼有频率步进信号和线性调频信号的优点,是一种高距离分辨力信号。 |
| 4. | The improvement of radar range - resolution not only facilitates detection of targets in high clutter , but also makes it possible to image and recognize targets 提高雷达距离分辨力不但有利于在强杂波背景下的目标检测,而且使目标成像成为可能。 |
| 5. | The background of this thesis is scene surveillance radar , which is mainly applied in target imaging , recognizing and tracking at airports 本课题的背景是场面监视雷达,其应用背景是针对机场,对机场内目标进行距离分辨力成像、识别和轨迹跟踪。 |
| 6. | Pulse compression effectively solves the contradiction between the range resolution and the average power of the radar , and is widely applied in modern radars 而脉冲压缩有效地解决了雷达距离分辨力与平均功率之间的矛盾,并在现代雷达中广泛应用。 |
| 7. | In the second chapter , firstly , the theory of target resolving is introduced . secondly , the echo of radar is commoned , and characteristic of lfm is analyzed and summarized 第二章主要介绍了多目标分辨的理论基础,分析了距离分辨力、速度分辨力与模糊函数之间的关系。 |
| 8. | Chirp signal is a kind of pulse - compressed signal with large time - bandwidth products achieved through linear frequency modulation . it has high resolution in range because of its great bandwidth 线性调频信号是通过线性频率调制获得大的时宽带宽积的一种脉冲压缩信号,具有大的带宽,因此有高的距离分辨力。 |
| 9. | Briefly , here are main topics of this dissertation : ( 1 ) the relation between the resolving power of the linear frequency modulated continuous wave radar and the linearity of linear frequency modulation signal 同样,输出数据也可以通过双口ram和pci接口输出。本文的主要工作包括: ( 1 )介绍了线性调频雷达距离分辨力和调频线性度的关系。 |
| 10. | Pulse internal phase coding and pulse external quasi random frequency agile signal is a kind of complex signal which can avoid interference frequency band , increase system bandwidth , consequently increase the range resolution 本文所研究的脉内二相编码脉间准随机跳频信号是复合信号的一种,可以避开干扰频段,提高系统带宽,从而提高了距离分辨力。 |