据小波变换的多尺度分解特性 ,提出了多尺度小波能量积累器的概念 ,并给出了相应的多尺度小波能量积累算法 ,将信号在不同分解尺度上的小波能量进行积累。在此基础上设计出一种适用于各种雷达 ,尤其是微波雷达弱信号处理的小波能量检测算法 ,对低信噪比信号检测进行了仿真实验。结果表明 ,该检测算法对强白噪声及强色噪声背景下的低信噪比信号的检测非常有效。 According to the multi-scale decomposition characteristics of wavelet transform, the concept of multi-scale wavelet energy accumulator is proposed and the corresponding multi-scale wavelet energy accumulation algorithm is given. The wavelet energy is accumulated on different decomposition scales. Based on this, a wavelet energy detection algorithm suitable for all kinds of radar, especially the weak signal processing of microwave radar is designed. The simulation of low signal to noise ratio signal detection is carried out. The results show that the proposed algorithm is very effective for the detection of low signal-to-noise ratio in strong white noise and strong color noise.