| 二相编码信号调制分析与识别 |
| |
| 引用本文： | 那云虓,司锡才,蒯冲.二相编码信号调制分析与识别[J].系统工程与电子技术,2004,26(3):298-300. |
| |
| 作者姓名： | 那云虓 司锡才 蒯冲 |
| |
| 作者单位： | 哈尔滨工程大学信息与通信工程学院,黑龙江,哈尔滨,150001 |
| |
| 摘 要： | 针对采用脉冲压缩体制的低截获概率雷达的应用场合,提出了一种识别二相编码脉冲压缩雷达信号的新算法。该算法基于信号的时频分析(小波分析和短时傅里叶变换),利用小波变换的相位尺度和载波尺度的模极大值特征辨识信号的相位调制规律,因而在无需计算全部小波系数的情况下,可快速地获得信号的数学模型,为算法在实际中的应用提供了良好的条件。给出了应用该方法的具体步骤,通过计算机仿真实验证明该算法的有效性。
|
| 关 键 词： | 小波变换 二相编码 参数识别 |
| 文章编号： | 1001-506X(2004)03-0298-03 |
| 修稿时间： | 2003年1月7日 |
Modulation and recognition of BPSK signals |
| |
| NA Yun-xiao,SI Xi-cai,KUAI Chong.Modulation and recognition of BPSK signals[J].System Engineering and Electronics,2004,26(3):298-300. |
| |
| Authors: | NA Yun-xiao SI Xi-cai KUAI Chong |
| |
| Abstract: | Aimed at the application of low probability of intercept adopting pulse compression system, a new arithmetic of recognizing binary phase coded pulse compression radar signal is proposed. Based on the time-frequency analysis (continuous wavelet transform and short time Fourier transform), the arithmetic uses the modulus maximum characteristic on the phase scale and carry frequency scale to recognize phase modulation rule of signal. So without whole wavelet coefficient the signal mathematics model can be obtained quickly. It provides well condition for application of arithmetic in practice. The concrete steps to apply this arithmetic are proposed. Simulation results demonstrate the effectiveness of this method. |
| |
| Keywords: | wavelet transform BPSK parameter recognition |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
