提出了基于随机共振技术的微弱目标方位估计方法。通过自适应调节系统参数,包括两种方法:自适应调节系统结构参数和自适应调节外加噪声,使系统进入随机共振状态,经随机共振器输出后得到信噪比较大提高的阵列信号,再由方位估计算法估计出目标方位。并进行了仿真和实验研究,结果表明:实验结果与理论分析符合良好,该方法可应用于微弱低频信号的目标方位估计。 A weak target orientation estimation method based on stochastic resonance technique is proposed. Through adaptive adjustment of system parameters, including two methods: adaptive adjustment of system structure parameters and adaptive adjustment of external noise, the system into the state of random resonance, the output of the random resonator obtained a large signal-to-noise ratio of the array signal, and then The azimuth estimation algorithm estimates the target azimuth. The simulation results and experimental results show that the experimental results are in good agreement with the theoretical analysis. The proposed method can be applied to the estimation of the target position of weak low frequency signals.