一种宽带脉冲信号检测算法

An Algorithm for Wideband Pulse Detection

提出了一种能够实时检测雷达脉冲信号的自相关算法。相对原有相关算法,该算法提高了窄带脉冲信号脉宽和到达时间的测量精度,并具备对宽带脉冲信号检测和时域参数估计的能力,且易于硬件实现。讨论了不同信噪比下使用最优门限能够达到的测量精度,并将该算法在FPGA中实现。仿真结果证明该算法在实时处理环境中具有较好的检测性能。

An autocorrelation algorithm for real - time detection of radar pulses is proposed in this paper. Compared with the original algorithm, the proposed one improves the accuracy of the time of arrival （TOA） and pulse width for narrowband pulse estimation, possesses the ability of detection and estimation for wideband pulse. Also, it can be easily implemented on hardware. Measurement accuracies of the optimal thresholds under different signal-to-noise ratios （SNR） are discussed and the algorithm is implemented on FPG.A. The aimulations show that the algorithm has good detection performance in real-time processing environment.