摘要
线性调频信号被广泛应用到雷达、声纳、地震和其他探测的很多领域,目前对其应用比较广泛的获知信号存在的方法是基于相关的匹配滤波处理,但匹配滤波处理是进行信号压缩来获取最大的信噪比。采用相位匹配方法对线性调频信号进行处理,去除噪声还原信号从而获得高的信噪比,通过仿真实验证明该方法应用在受到噪声干扰的线性调频信号处理上效果很好。
Linear frequency modulated signal has been used in many domain such as radar, sonar and earthquake detecting. We can get to feel signal by using matching filter which adopts correlation processing. But matching filter uses of compression signal in order to get better SNR. The thesis uses phase matched theory in order to get original signal and disposes of noise of linear frequency. It can get better SNR through emulation and get the best needing signal.
出处
《沈阳师范大学学报（自然科学版）》
CAS
2009年第2期206-208,共3页
Journal of Shenyang Normal University:Natural Science Edition
基金
沈阳市科技局科学技术与计划项目(1081245-1-00)
关键词
线性调频
相位匹配
信号去噪
匹配滤波
linear frequency modulation
phase matched
dispose of signal noise
matched filter
