"基于MATLAB的线性调频信号仿真及应用探讨"

ontains characteristics. In the process of pulse compression, the linear frequency modulation signal can achieve a large compression ratio. Its biggest advantage is that the matching filter used is not sensitive to the Doppler frequency shift of the echo signal. This means that a single matching filter can process echo signals with different Doppler frequency shifts, greatly simplifying the radar signal processing system. Furthermore, the linear frequency modulation signal has good range resolution and radial velocity resolution. Therefore, it is frequently used in modern high-performance radar systems. Compared with other pulse compression signals, the linear frequency modulation signal is easy to generate using digital technology and is technically mature, making it widely applicable in engineering. Keywords: MATLAB; linear frequency modulation; pulse compression; system simulation" 这份文件介绍了线性调频信号的特点以及在雷达系统中的应用。线性调频信号是一种大时宽带宽积信号，具有平方律特性，可以通过脉冲压缩获得较大的压缩比。其最大优点在于匹配滤波器不会受到回波信号的多普勒频移影响，能够处理具有不同多普勒频移的回波信号，从而简化雷达信号处理系统。此外，线性调频信号具有良好的距离分辨率和径向速度分辨率，在现代雷达系统中得到广泛应用。基于MATLAB的系统仿真可以方便地生成线性调频信号，并进行进一步的分析和研究，对于工程应用具有重要价值。通过该文件，读者可以了解线性调频信号的基本原理、特点和仿真方法，对相关领域的研究和实际应用具有一定的参考意义。