基于FPGA的LFMCW雷达信号处理算法及实现
发布时间：2018-10-13 16:43
【摘要】：为提高线性调频连续波雷达的探测精度,提出一种Rife算法与Jacobsen算法的联合频率估计算法。该算法分别对三角波调制的线性调频连续波的差频信号的上下扫频的频谱进行峰值搜索,当其频率在量化频率点附近时用Jacobsen算法优化,其他情况使用Rife算法直接估计。通过理论及Matlab软件仿真分析算法的估计性能,结合现场可编程门阵列(FPGA)EP4CE30F23C8N设计了用于三角波调制的LFMCW雷达,通过SignalTapⅡ软件实时捕捉目标参数,得到速度及距离信息。该方法应用于调频连续波雷达可以取得较高探测精度,同时具有较高的实时性、稳定性。
[Abstract]:In order to improve the detection accuracy of LFM CW radar, a joint frequency estimation algorithm of Rife algorithm and Jacobsen algorithm is proposed. The algorithm searches the peak value of the frequency spectrum of the difference frequency signal of the linear frequency modulation continuous wave modulated by triangle wave. When the frequency is near the quantized frequency point, the Jacobsen algorithm is used to optimize the frequency. In other cases, the Rife algorithm is used to estimate the frequency spectrum directly. Based on the theory and the simulation analysis of the estimation performance of the algorithm by Matlab software, a LFMCW radar for triangular wave modulation is designed in combination with the field programmable gate array (FPGA) EP4CE30F23C8N). The target parameters are captured in real time by SignalTap 鈪，
本文编号：2269278
[Abstract]:In order to improve the detection accuracy of LFM CW radar, a joint frequency estimation algorithm of Rife algorithm and Jacobsen algorithm is proposed. The algorithm searches the peak value of the frequency spectrum of the difference frequency signal of the linear frequency modulation continuous wave modulated by triangle wave. When the frequency is near the quantized frequency point, the Jacobsen algorithm is used to optimize the frequency. In other cases, the Rife algorithm is used to estimate the frequency spectrum directly. Based on the theory and the simulation analysis of the estimation performance of the algorithm by Matlab software, a LFMCW radar for triangular wave modulation is designed in combination with the field programmable gate array (FPGA) EP4CE30F23C8N). The target parameters are captured in real time by SignalTap 鈪，
本文编号：2269278
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