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| 频差对方向图综合的影响及解决方法 | |
| 引用本文： | 王涛,全厚德,赵汇强. 频差对方向图综合的影响及解决方法[J]. 通信技术, 2011, 44(2): 16-18,21 |
| 作者姓名： | 王涛 全厚德 赵汇强 |
| 作者单位： | 军械工程学院,河北,石家庄,050003 |
| 摘 要： | 为解决各调频发射机开机时载波频差对天线阵列方向图综合的影响,这里利用了DFT最大值谱线及与其相邻两根谱线系数的实部（或虚部）进行插值得到各个发射机载波频率的估算值,然后提出了一种有效的补偿方法,以减少频差引起的瞬时相位差对方向图综合的影响。仿真实验表明：此方法频率估算精度较高,采用该方法可以有效的解决频差对天线阵列方向图综合的影响。 |
| 关 键 词： | 均匀直线阵列 频率估计 离散傅里叶变换 相位补偿 方向图综合 |
Influence on and Solution for Array Pattern Synthesis Caused by Carrier Frequency Difference |
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| WANG Tao,QUAN Hou-de,ZHAO Hui-qiang. Influence on and Solution for Array Pattern Synthesis Caused by Carrier Frequency Difference[J]. Communications Technology, 2011, 44(2): 16-18,21 | |
| Authors: | WANG Tao QUAN Hou-de ZHAO Hui-qiang |
| Affiliation: | (Ordnance Engineering College,Shijiazhuang Hebei 050003,China) |
| Abstract: | When the transmitters work,the difference of carrier wave frequency existing among them would has a serious influence on calculation of the antenna pattern array.Real parts（or imaginary parts） of DFT coefficients of the maximum and its two neighboring spectral peaks are used for the interpolation in the algorithm in order to acquire the estimation frequency.With this,a method for decreasing the influence caused by frequency difference in pattern synthesis is proposed.The simulation results show that the method could improve the estimation precision and reduce the influence caused by frequency difference. |
| Keywords: | Uniform linear array Frequency estimation DFT Phase Compensation Array pattern |
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