Wavelet packet transform is used to improve the SNR of the incoherent integral radar echo, and bispectrum algorithm is used for signal detection in this united detecting algorithm, based on the modeling for the through-wall radar echo.

• 在对穿墙雷达回波信号建模的基础上，用联合算法将非相干累积后的回波信号经过小波包变换提高信噪比，再用双谱算法进行信号检测。