摘要
在互谱算法运用到宽带信号测向的基础上,针对互谱算法在宽带信号测向过程中存在相位模糊与测角精度不足的问题,提出一种频率-相位差值法.该方法较好的解决了相位模糊和互谱法中阵元间距不大于信号最小波长一半等技术问题,此外,针对测向过程中可能存在相位跳变的问题,对相位差值进行了修正处理.无论在软件还是硬件平台上都验证了该算法的有效性.为宽带信号的测向提供了一种有效的方法,具有广阔的运用前景.
On the basis of the cross - spectral algorithm applied to finding wideband signal, because of the phase ambiguity and lack of angular accuracy, this paper proposed a frequen- cy - phase Interpolation method. This method can do better in solving these technical issues such as the phase ambiguity and the distance between antenna elements which were less than half the minimum wavelength of signals in the cross - spectral method, moreover, this method had the ability to correct the retardation value during the phase transition which may exist in the process of finding. And effectiveness of the algorithm was validated whether in software or hardware platform. It provided an effective method which has broad application prospects for finding wideband signals
作者
饶县斌
罗国星
RAO Xian-bin LUO Guo-xing(School of Information and Communication Engineering, Harbin Engineering University, Harbin 150001, China)
出处
《哈尔滨商业大学学报（自然科学版）》
CAS
2016年第6期724-728,共5页
Journal of Harbin University of Commerce：Natural Sciences Edition
基金
中央高校基本科研费专项基金(HEUCF140803)
关键词
互谱算法
频率-相位差
相位模糊
相位跳变
测向
cross - spectra
frequency - phase difference
phase ambiguity
phase jump
direction finding
作者简介
饶县斌（1990-），男，硕士，研究方向：宽带信号的检测与识别．
