| 一种基于二分法的LFM调制斜率估计算法 |
| |
| 引用本文： | 崔刚,李涛.一种基于二分法的LFM调制斜率估计算法[J].电子科技,2015,28(10):15. |
| |
| 作者姓名： | 崔刚 李涛 |
| |
| 作者单位： | (国防科学技术大学 ATR国防重点实验室,湖南 长沙 410073) |
| |
| 摘 要： | 针对实际工程中LFM信号传统试解调算法估计耗时较长,在信噪比较低的条件下存在误判的问题,采用了一种基于二分法的线性调频信号试解线调算法,通过对自相关信号估计误差进行分析,在自相关估计的调频斜率附近选择合理区间,并在该区间范围内使用二分法进行调制斜率的估计搜索。通过实验,证明所提出的方法在信噪比为-5~5 dB时比传统的试解调算法减少约五倍的运算时间。
|
| 关 键 词： | 试解调 二分法 调制斜率 自相关 |
An Estimation Algorithm Based on the Dichotomy of LFM Modulation Slope |
| |
| CUI Gang,LI Tao.An Estimation Algorithm Based on the Dichotomy of LFM Modulation Slope[J].Electronic Science and Technology,2015,28(10):15. |
| |
| Authors: | CUI Gang LI Tao |
| |
| Affiliation: | (ATR National Defense Science and Techonlogy,National University of Defense Technology,Changsha 410073,China) |
| |
| Abstract: | This paper focuses on the problem of the time consuming and poor anti-interference performance of traditional demodulate of modulation slope,the author advance a new demodulate method by using dichotomy,we first analyze the errors of the self-correlation estimation,then we use dichotomy on reasonable interval near the result,Through experiment,this mothed proofs effective and the coasting time reduce five times then the traditional demodulate. |
| |
| Keywords: | demodulation dichotomy modulation slope autocorrelation |
| 本文献已被 万方数据 等数据库收录！ |
| 点击此处可从《电子科技》浏览原始摘要信息 |
|
点击此处可从《电子科技》下载全文 |
|
